Relevant bibliographies by topics / Soil colloids. Water quality

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'Soil colloids. Water quality'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "Soil colloids. Water quality"

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Gimbert, Laura J., Philip M. Haygarth, Ronald Beckett, and Paul J. Worsfold. "The Influence of Sample Preparation on Observed Particle Size Distributions for Contrasting Soil Suspensions using Flow Field-Flow Fractionation." Environmental Chemistry 3, no. 3 (2006): 184. http://dx.doi.org/10.1071/en06029.

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Environmental Context. Colloids are an important environmental means for contaminant transport from land to water. Within the agricultural landscape, the mobilization of phosphorus species by soil leachate and drainage waters is a particularly important example. Colloidal material is, however, difficult to isolate and characterize, due in part to the dynamic nature of environmental systems and colloidal structure and in part of the lack of suitable analytical techniques. Field-flow fractionation is one emerging tool for the investigation of colloidal fractions in environmental matrices and for assessing how soil processes impact on water quality. Abstract. This paper reports the use of flow field-flow fractionation (FlFFF) as a suitable technique to characterize particle size distributions (PSDs) in the <1-μm fraction of ‘colloidal’ soil suspensions prepared from two contrasting soil types (one mineral rich and one organic rich). Both soils have been fully characterized and the <1-μm fraction obtained by gravitational settling of 1% w/v soil suspensions. The effect of shaking and settling times on observed PSDs was systematically investigated and revealed that gentle shaking for 16 h followed by gravity settling for 1 h gave reproducible results. Settling for longer periods resulted in re-aggregation of smaller particles and a shift in the PSDs to larger mean particle diameters. Changes in soil suspension concentration (0.25–1% w/v) had no significant effect on PSDs. Further fractionation of the gravitationally settled <1-μm fraction by centrifugation and filtration (to < 0.45 and < 0.2 μm) clearly showed that a significant component in each fraction was removed by the filtration process. This was true for both soil types and confirms that membrane filtration seriously underestimates the colloidal fraction in aquatic samples. These findings highlight the need for standardized and well-documented protocols for processing soil suspensions.
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Deng, Yongfeng, Li Liu, Yu-Jun Cui, Qi Feng, Xianglong Chen, and Ning He. "Colloid effect on clogging mechanism of hydraulic reclamation mud improved by vacuum preloading." Canadian Geotechnical Journal 56, no. 5 (May 2019): 611–20. http://dx.doi.org/10.1139/cgj-2017-0635.

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Many cases of artificial soft clay foundation constructed by hydraulic filling and improved by the vacuum preloading show the clogging phenomenon in the surrounding soil, which compromises the improvement quality. To clarify the clogging mechanism and the formation of soil columns, the vacuum process was tracked from macro to micro by laboratory model tests. Results show that the soil column with higher strength (density) and lower water content was formed surrounding the prefabricated vertical drainage (PVD). Mercury intrusion porosimetry (MIP) tests revealed that the pore-entrance diameter of the soil column after 50 and 43 days of vacuum application ranged from 100 to 600 nm, and that at peak it is 300 nm. However, the mean diameter of the colloidal particles in tail water decreases from 1000 to 100 nm with continuous vacuum application, and then becomes stable at about 100 nm after 43 days. After re-visiting the vacuum process of the hydraulic reclamation mud, the pore-size distribution of surrounding soils and particle-size distribution of the tail water, the clogging was explained by the filling of the pores of the soil column by the colloidal particles in pore water. This mechanism differentiates the artificial foundation improved by vacuum preloading from the natural foundation for the presence of rich colloidal particles in pore water.
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Khoruzhyi, P. D., E. M. Matseliuk, and D. V. Charnyi. "DEVELOPMENT AND IMPLEMENTATION OF HIGH-EFFICIENCY AND RESOURCE-SAVING TECHNOLOGIES FOR AGRICULTURAL WATER SUPPLY AND WASTEWATER DISPOSAL." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 2 (December 12, 2019): 140–45. http://dx.doi.org/10.31073/mivg201902-197.

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Introduction. Scientific support for measures aimed at providing centralized water supply to rural settlements has been entrusted to the Department of Agricultural Water Supply of UkrNIIGiM (now the Institute of Water Problems and Land Reclamation of NAAS) since 1991. The main task of this department of the institute was to develop scientific and technical solutions for reliable supply of all consumers in rural areas with water in the required quantity, of the proper quality and with the necessary free pressure while minimizing capital and operating costs, rational and economic use of water resources and environmental protection from pollution by the wastewaters. Suggested scientific approaches: - decentralization of the withdraw processes, purification, supply and distribution of water with the splitting into drinking and technological water; - reliable supply of high quality drinking water and technological water with low cost; - creation of closed water supply systems at agricultural enterprises with minimal consumption of fresh water and use of treated wastewater for technical needs or irrigation of agricultural crops, and sludge - for soils fertilizing; - development of new water treatment technologies based on the reproduction of intensified factors of the biogeochemical cycle of water in the course of its natural self-purification in order to reduce the cost of the water treatment process and increase the barrier capacity of existing structures. - reliable protection of territories against flooding by filtrated waters from reservoirs using these waters for agricultural water supply and irrigation; - optimization of the interoperability of all interacting structures with systems to minimize the per unit energy consumption for water transportation. Prospects. One of the main fundamental theoretical questions that need further development is new approaches to filtering theory. Since the time of D.M. Mintz this research direction have been stagnated. This is especially felt in domestic developments, despite the fact that there has been a significant breakthrough in the creation of filter materials (mainly in the case of filter materials that are lighter than water, which were not used at the time of D.M. Mintz). A breakthrough in the development of measuring apparatus has also taken place, and it now allows measuring the electrokinetic and dimensional characteristics of colloids in water source and filter loading grains, which makes it possible to consider the filtration process and especially the adsorption of colloids on the surface of filter loading grains from a different angle. Conclusions. The results of scientific researches carried out in the laboratory of agricultural water supply for 28 years of its existence, and were implemented at the existing local and group agricultural water supply systems. Materials of scientific researchers are published in 4 monographs and more than 100 articles and conference materials in domestic and foreign scientific journals. The proposed solutions are patented in 46 patents for inventions. Using the research of the laboratory staff, 3 doctoral dissertations (V.P. Khoruzhyi, V.G. Novokhatnii, and D.V. Charnyi) and 14 PhD theses were defended.
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Suprabawati, Anggi, Arie Hardian, and Eki Al Ghifari. "DINAMISASI DAN PRODUKTIVITAS PRIMER SUNGAI CITARUM PROVINSI JAWA BARAT." ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) 13, no. 1 (May 31, 2019): 20. http://dx.doi.org/10.24843/ejes.2019.v13.i01.p03.

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Monitoring the quality of the river is essentially to know the status of the periodic quality of the river. Good assessment of river water quality should use a combination of physical, chemical and biological parameters. One way that can be done to describe water quality in an area is the primary productivity in the water. Primary productivity is the amount of organic material produced by autotrophic organisms with the help of sunlight. Perifiton as a river microorganism, will provide dissolved oxygen (DO) through photosynthesis to maintain most of the life of the surrounding water, then Periphyton can respond quickly to environmental changes, this is an indicator of changing conditions (Gaiser 2008 and Lakewatch, 2000) in Brown and Wright (2016) Chemical reactions that occur in the aquatic environment also involve interactions between ions and other phases. Some important interactions in the waters are the occurrence of photosynthesis by algae and the exchange of dissolved solids with dissolved gases in water. The same exchange occurs when bacteria degrade organic matter (often in the form of particles) in water. Some important elements move around in aquatic systems as colloidal chemical compounds or are absorbed into soil particles. The equilibrium of physical chemical reactions in waters involves sediment, gas, and water. Sediment is a layer of material or material that covers the bottom of small rivers, lakes, reservoirs, bays, and oceans. Sediments contain fine mixtures and subtle minerals, including clay, silt, and sand, which mix with organic materials. These materials may experience changes in composition from pure mineral ingredients to main organic ingredients. Sediments contain biological ingredients, chemicals, and pollutants in water. Keywords: Primary Productivity; citarum river ; sediment; water test parameter
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LIMA, ALEXANDRE DE OLIVEIRA, FRANCISCO PINHEIRO LIMA-FILHO, NILDO DA SILVA DIAS, PRISCILA REGINA DO ARAGÃO REGO, FLÁVIO FAVARO BLANCO, and MIGUEL FERREIRA NETO. "MECHANISMS CONTROLLING SURFACE WATER QUALITY IN THE COBRAS RIVER SUB-BASIN, NORTHEASTERN BRAZIL." Revista Caatinga 30, no. 1 (March 2017): 181–89. http://dx.doi.org/10.1590/1983-21252017v30n120rc.

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ABSTRACT Stream water quality is dependent on many factors, including the source and quantity of the streamflow and the types of geology and soil along the path of the stream. This study aims to evaluate the origin and the mechanisms controlling the input of ions that effect surface water quality in the sub -basin of the Rio das Cobras, Rio Grande do Norte state, Northeastern Brazil. Thirteen ponds were identified for study: three in the main river and ten in the tributaries between, thus covering the whole area and lithology of the sub -basin. The samples were collected at two different times (late dry and rainy periods) in the hydrological years 2009 and 2010, equating to total of four collection times. We analyzed the spatial and seasonal behavior of water quality in the sub-basin, using Piper diagrams, and analyzed the source of the ions using Guibbs diagram and molar ratios. With respect to ions, we found that water predominate in 82% sodium and 76% bicarbonate water (cations and anions, respectively). The main salinity control mechanism was related to the interaction of the colloidal particles (minerals and organic sediment) with the ions dissolved in water. Based on the analysis of nitrates and nitrites there was no evidence of contamination from anthropogenic sources.
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Tociu, Carmen, Cristina Maria, Gyorgy Deak, Irina-Elena Ciobotaru, Alexandru-Anton Ivanov, Ecaterina Marcu, and Florica Marinescu. "Tertiary Treatment of Livestock Wastewater in the Context of Alternative Water Resources for Sustainable Agriculture." Revista de Chimie 71, no. 10 (November 3, 2020): 161–70. http://dx.doi.org/10.37358/rc.20.10.8360.

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The limited availability and quality of water resources are key issues of water management, and the protection and preservation of water resources are a requirement in the context of accelerated economic growth and principles of sustainable development. The experimental research presented in this paper is based on the need to identify alternative water sources and support unconventional wastewater treatment methods which would enable their reuse in areas affected by water scarcity and drought. Livestock wastewater contain significant levels of nutrients (nitrogen and phosphorus) and may represent an attractive water source for crop irrigation. This paper evaluates the efficacy of a proposed technological process for tertiary wastewater treatment consisting of two steps: electrochemical treatment for the removal of suspended and colloidal impurities and ozone disinfection. The experimental results showed higher efficiencies for the removal of chemical pollutants (92.5% COD, 79.3% BOD, 98.6% TSS, 41% residue saline) and significant inactivation of microorganisms (over 99.9% for total coliform bacteria and in some cases 100% for faecal coliform bacteria and faecal streptococci). The quality of the effluent complies with the regulations for wastewater use in agriculture and allows its reuse for different categories of use considering the required conditions for soil/crops. The successful application of treated wastewater to agricultural crops depends in a high extent on the good practices aimed on the improvement of crop yield and quality, optimisation of soil productivity and protection of the environment undertaken by the economic entities.
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Glovyn, N. M., and O. V. Pavliv. "Investigation of Causes and Influences of Soil Acidity on Crop Yields in Kozova District, Ternopil Region." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 91 (November 6, 2019): 16–20. http://dx.doi.org/10.32718/nvlvet-a9103.

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The paper covers the causes of occurrence and the methods of investigating soil acidity in Kozova destrict, Ternopil region. It is a highly topical issue, since increased soil acidity negatively influences the growth and the development of most cultivated crops and affects favourable microbiological soil properties. Soil acidity is caused by hydroions that are formed under the dissociation of acids and hydrolytic acid salts and are absorbed by the smallest soil particles – colloids, which can go into interstitial water. The increased soil acidity, which is a limiting factor for the biodiversity of a particular area and interferes healthy plant development, is an important agricultural problem. It can cause the decrease of crop yields as well as plant diseases. That is why, farmers should be aware of the type and the peculiarities of the soil present on their lots and take into account and regulate pH values when cultivating various agricultural crops. Soil acidity is considered to be acceptable for the healthy growth and development of plants, if it falls within the limits of рН 6.5–7.5. It has been determined that the application of mineral fertilizers without limestone materials causes acidification of typical black soils. If there is a long-term use of the increased amounts of mineral fertilizers, there is an increase of the active acidity observed. The application of nitrogenous fertilizers increases soil active acidity even more compared to the use of phosphate potassium fertilizers. Soil exhaustion prevention techniques have been substantiated. The methods of determining soil acidity have been considered. A potentiometric method is the most wide-spread in terms of determining soil acidity level, since it is highly sensitive and accurate. Soil acidity has been experimentally determined by potentiometry using TsINAO method (GOST 26483–85) and hydrolytically using Kapenn method (GOST 26212–91). Statistical data processing has been performed. The weighted-average acidity index pH salt. is 6.3 and the hydrolytic acidity is 1.77 mg–acs/100g of soil, pH salt. is 5.9 and hydrolytic acidity is 1.92 mg–acs/100g of soil. It shows that plants can grow and develop well in this soil. Scientific and production experience suggests that the yield from acid soils decreases for 15–20%. The scientific agro-ecological approach, that is the calculation of the balance of nutrients and humus depending on the kind of the cultivated crop as well as physical, chamical and bilological soil characteristics and well-timed liming, can provide the necessary level of nutrients in the soil of agricultural enterprises. In order to provide fertile soil and improve agro-ecological conditions of the soil in Kozova district, it is necessary to provide annual application of nutrients using organic and mineral fertilizers with the optimal ratio of nitrogen, phosphorus, potassium and by liming acid soils. Currently, it is very important to apply organic agriculture, which can improve the quality and the competitiveness of agricultural products. Scientific investigations on every crop have determined the optimal рH level and its value depends on the soil and the climatic conditions, the type of soils, their particle-size distribution and the state of cultivation. Soil acidity is one of the factors that influence the decrease of yields, especially the yields of those crops that require great amounts of potassium and magnesium for their healthy growth.
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Tsapko, Yu, and A. Ohorodnia. "Optimization of fertility indices of podzolic soils via cultivation of phytomeliorants." Agricultural Science and Practice 5, no. 1 (April 15, 2018): 42–50. http://dx.doi.org/10.15407/agrisp5.01.042.

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Aim. To determine and estimate the impact of phytopotential of cultivated plants on the fertility indices of podzolic soils, the main factors, limiting the performance of crops, and to establish economic effi ciency of cultivating phytomeliorants, different in their physiological properties. Methods. Field, laboratory, mathematical-statistical. Results. Comprehensive four-year-long studies (2013–2017) established that the optimization of physical and chemical properties of podzolic soils is achieved via the application of phytomeliorant measures. First and foremost, these measures are aimed at preventing the decalcifi cation of soils, i.e. they condition the accumulation of an active Са 2+ ion, which promotes improving the soil characteristics due to progressing development of cumulative soil genesis. It was established that with the mass of alfalfa roots of 9.7 t/ha and sainfoin of 9.9 t/ha, the 0–100 cm layer of podzolic chernozem contains 148.6 and 109.2 kg/ha СаО respectively. Enriching the root-containing layer of soil with calcium compounds promotes replenishing the soil with active calcium, thus ensuring the optimization of the lime potential (pH – 0.5pCa). The latter affects both the acid-alkaline balance and the regulation of physical and chemical processes in soil. It was established that after three years of phytomelioration, the soil in variants with perennial grasses is characterized with higher buffer against acid-alkaline load compared to the control variant which is confi rmed with the indices of acid-alkaline buffer. Taking the abovementioned into consideration, one may assume that the very increase in the activity of calcium is one of buffer mechanisms of soil against acidifi cation. It was proven that phytomelioration is effi cient in terms of improving physical properties of soils, and soil structure, in particular, due to the decrease in the number of dusty and lumpy fractions. It was established that due to phytomeliorant measures the saturation of soil-colloid absorbing complex with calcium ensures intense improvement of water resistance of aggregates for two years. It was proven that optimal values of soil composition density for most crops of the Forest-Steppe zone may be achieved while cultivating Sudan grass for one year. The improvement of the main indices of soil fertility via phytomeliorative measures led to the increase in the performance of corn and barley and improvement of quality properties of grain. Conclusions. Phytomeliorative technology of cultivating podzolic soils ensures the balanced use of soils with simultaneous orientation towards preservation of resources, ecological safety and supplying the population with stable yield of crops with high quality of products.
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Ciolea, Daniela Ionela, Ioana Ionel, and Alin Mihaiuti. "Research Concerning the Possibility of Turning Sterile Soil Into a Fruitful One, by Using Sludge." Revista de Chimie 70, no. 9 (October 15, 2019): 3236–41. http://dx.doi.org/10.37358/rc.19.9.7525.

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The present paper focuses on conducting research, based on physical, chemical analysis of treated sludge from the waste water treating systems and on physical, chemical and pedological analyzes on sterile material (soil), achieved in order to turn both residues, by mixing and a mutual treatment, into an useful, friendly environmental material, useful for further cultivation. One determined in situ probes from the Lupeni sterile dumps different characteristics such as: thickness of the soil layer, its physiological width, structure and porosity, permeability, humidity, soil reaction, effervescence with HCl, the nature of humus, soil texture, the presence, nature and abundance of soluble salts. Further one researched on electrokinetic�s disintegrated sludge, and applying ultrasonic technology, and concluded about the possibility of using the sludge on the degraded lands of the Jiu Valley. The sludges from the purification contain: clay particles entrained by street water into the sewer network; organic substances from domestic sewage and human manure; soluble / insoluble salts; various species of cat-ions and an-ions retained by the colloidal fraction of organic or mineral nature and microorganisms. As result, the tests demonstrated the improved soil quality on degraded lands by fertilizing with purified sludge. The superior growth of platelets in sterile mixture vessels and 75 % fermented sludge, versus experimental samples with 75 % sterile material. The use of sludge treated in land conversion has a unit cost of 210 � 250 euros/ tonne dry substance (d.s.).
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Zhao, Mingzhi, Gang Liu, Chong Zhang, Wenbo Guo, and Qiang Luo. "State-of-the-Art of Colloidal Silica-Based Soil Liquefaction Mitigation: An Emerging Technique for Ground Improvement." Applied Sciences 10, no. 1 (December 18, 2019): 15. http://dx.doi.org/10.3390/app10010015.

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In the booming field of nanotechnology, colloidal silica (CS) has been introduced for ground improvement and liquefaction mitigation. It possesses a great ability to restrain pore pressure generation during seismic events by using an innovative stabilization technique, with the advantages of being a cost-effective, low disturbance, and environmentally friendly method. This paper firstly introduces molecular structures and some physical properties of CS, which are of great importance in the practical application of CS. Then, evidence that can justify the feasibility of CS transport in loose sand layers is demonstrated, summarizing the crucial factors that determine the rate of CS delivery. Thereafter, four chemical and physical methods that can examine the grouting quality are summed and appraised. Silica content and chloride ion concentration are two effective indicators recommended in this paper to judge CS converge. Finally, the evidence from the elemental tests, model tests, and field tests is reviewed in order to demonstrate CS’s ability to inhibit pore water pressure and lower liquefaction risk. Based on the conclusions drawn in previous literature, this paper refines the concept of CS concentration and curing time being the two dominant factors that determine the strengthening effect. The objective of this work is to review CS treatment methodologies and emphasize the critical factors that influence both CS delivery and the ground improving effect. Besides, it also aims to provide references for optimizing the approaches of CS transport and promoting its responsible use in mitigating liquefaction.
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Dissertations / Theses on the topic "Soil colloids. Water quality"

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Makris, Konstantinos Christos. "Soil and colloidal phosphorous dynamics in three KY soils bioavailability, transport and water quality implications /." Lexington, Ky. : [University of Kentucky Libraries], 2002. http://lib.uky.edu/ETD/ukypssc2003t00069/KCMakris%5FMS%5FThesis.pdf.

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Thesis (M.S.)--University of Kentucky, 2002.
Title from document title page. Document formatted into pages; contains xiii, 163 p. :ill. Includes abstract. Includes bibliographical references (p. 152-162).
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Makris, Konstantinos Christos. "SOIL AND COLLOIDAL PHOSPHORUS DYNAMICS IN THREE KY SOILS: BIOAVAILABILITY, TRANSPORT AND WATER QUALITY IMPLICATIONS." UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_theses/408.

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Particulate P constitutes a significant portion of the total P found in surface runoff water. Water dispersed P-containing particles can travel long distances via surface runoff and reach water bodies causing decrease in water quality. The main objective of the study was to evaluate the potential facilitation of P transport by the water dispersed soil colloids (WDC) using three KY soils with a long-term record of poultry manure, and fertilizer P applications. Sequential fractionation for both whole soils and colloidal samples revealed that the WDC had a greater total and labile P content than the soil as a whole. Also, application of manure and fertilizer P seemed to decrease colloidal organic P fractions and increase the inorganic P fractions over the period of a growing season (May to September). Laboratory settling kinetics experiments were set up for the clay-colloidal fractions of the soils. It was shown that particulate P fractions paralleled WDC settling kinetics whereas dissolved P fractions remained in solution even after 36 hours. Field taken intact soil cores were leached with colloidal suspensions to test the effect of WDC on the vertical P movement. Results illustrated the preferential flow of particulate P though the macropores. When water was applied to the manure amended soil, dissolved P levels increased significantly over the control. WDC additions lowered dissolved P levels to the manure-amended columns, by sorbing to the WDC particles, but still greater than the dissolved P levels of the columns that had not been applied with manure.
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Bobart, Hawkins Jane Madge. "Amino acids as diagnostics of soil and soil water quality." Thesis, University of Plymouth, 2004. http://hdl.handle.net/10026.1/2425.

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Information on the contribution of amino acids to dissolved organic nitrogen and carbon exported from grassland soil is scarce. Evidence from the literature for other environments, suggests that determination of amino acid patterns of distribution may be a useful method for improved understanding of the interaction of microbial synthesis and degradation of organic N in conjunction with soil physical states. A sample pre-concentration technique and an HPLC methodology were developed that enabled the determination of dissolved free (DFAA) and combined (DCAA) amino acids in natural waters at picomolar concentration. These methods were used to examine the content of amino acids and their distribution patterns in waters from 3 different settings. Firstly, field-sized lysimeters (1 ha) were used to examine dissolved free and combined amino acids in surface runoff and drainage waters from a grassland soil over 3 winter drainage periods. The waters were collected from soils beneath drained and undrained permanent ryegrass swards, receiving 280 kg N haˉ¹yrˉ¹ , permanent ryegrass receiving no mineral N input, and grass/white clover (no mineral N). Total DFAA concentration ranged between 1.9 nM - 6.1 µM and total DCAA concentration ranged between 1.3 - 87 µM. A large library of amino acid distributions was assembled and multivariate pattern analysis techniques were used to determine whether there were distinctive amino acid signatures that could be used as a diagnostics for soil management and condition. Although addition of mineral N fertilizer increased amino acid concentration in waters, there was no detectable effect of fertilizer addition on DFAA distribution patterns. In contrast, both DFAA and DCAA patterns were strongly influenced by soil hydrology alone. However, in the case of DCAA patterns, there was evidence of an interaction between hydrology and fertilizer addition. Secondly, monolith lysimeters were used to determine the DFAA in drainage waters from 4 different grassland soil types, in order to find whether there was evidence of pattern difference with soil texture. Results showed that distribution patterns vary between soil types, and contrary to what might be expected, that clay soils do not necessarily retain basic amino acids. Thirdly, the concentration and patterns of DFAA were determined hourly over a 24 hour period, for a river that received exported soil waters from the field lysimeters mentioned above. Total DFAA concentration correlated with water temperature and NH4+ Compared with exported soil waters, the concentrations of DFAA in river water were several orders of magnitude smaller, although GLY, SER, LYS and MET were in greater relative proportions. Results of the studies show that amino acids have the potential to be used as diagnostics of source, soil condition and management.
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Coltman, Kenna Marie. "Water table management effects on water quality : a soil column study /." Connect to resource, 1992. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1195165287.

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Coltman, Kenna Maria. "Water table management effects on water quality: a soil column study." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1195165287.

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Haigh, R. A. "Water balance and water quality studies in an underdrained clay soil catchment." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371543.

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Anar, Mohammad Jahidul. "Sugarbeet Model Development for Soil and Water Quality Assessment." Diss., North Dakota State University, 2018. https://hdl.handle.net/10365/27896.

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Sugarbeet (Beta vulgaris) is considered as one of the most viable alternatives to corn for biofuel production as it may be qualified as ?advanced? biofuel feedstocks under the ?EISA 2007?. Production of deep rooted sugarbeet may play a significant role in enhancing utilization of deeper layer soil water and nutrients, and thus may significantly affect soil health and water quality through recycling of water and nutrients. A model can be useful in predicting the sugarbeet growth, and its effect on soil and water quality. A sugarbeet model was developed by adopting and modifying the Crop Environment and Resource Synthesis-Beet (CERES-Beet) model. It was linked to the Cropping System Model (CSM) of the Decision Support System for Agrotechnology (DSSAT) and was termed as CSM-CERES-Beet. The CSM-CERES-Beet model was then linked to the plant growth module of the Root Zone Water Quality Model (RZWQM2) to simulate crop growth, soil water and NO3-N transport in crop fields. For both DSSAT and RZWQM2, parameter estimation (PEST) software was used for model calibration, evaluation, predictive uncertainty analysis, sensitivity, and identifiability. The DSSAT model was evaluated with two sets of experimental data collected in two different regions and under different environmental conditions, one in Bucharest, Romania and the other in Carrington, ND, USA, while RZWQM2 was evaluated for only Carrington, ND experimental data. Both DSSAT and RZWQM2 performed well in simulating leaf area index, leaf or top weight, and root weight for the datasets used (d-statistic = 0.783-0.993, rRMSE = 0.006-1.014). RZWQM2 was also used to evaluate soil water and NO3-N contents and did well (d-statistic = 0.709-0.992, rRMSE = 0.066-1.211). The RZWQM2 was applied for simulating the effects of crop rotation and tillage operations on sugarbeet production. Hypothetical crop rotation and tillage operation scenarios identified wheat as the most suitable previous year crop for sugarbeet and moldboard plow as the most suitable tillage operation method. Both DSSAT and RZWQM2 enhanced with CSM-CERES-Beet may be used to simulate sugarbeet production under different management scenarios for different soils and under different climatic conditions in the Red River Valley.
USDA National Institute of Food and Agriculture Foundational Program (Award No.: 2013-67020-21366)
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Abel, David Scott. "Cover crop effects on soil moisture and water quality." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/34650.

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Master of Science
Department of Agronomy
Nathan O. Nelson
Eutrophication of freshwater lakes and streams is linked to phosphorus (P) fertilizer loss from agriculture. Cover crops could help mitigate P loss but producers are concerned that they may use too much water. This study was conducted to better understand the effects cover crops have on soil moisture and P loss. Volumetric water content (θ) was measured at the Kansas Cover Crop Water Use research area at 10 depths throughout a 2.74 m soil profile in 5 cover crop treatments and compared to θ measured from a chemical fallow control. Total profile soil moisture in sorghum sudangrass (1.02 m) and forage soybean (1.03 m) did not significantly differ from chemical fallow (1.05 m) at the time of spring planting. However, water deficits were observed in double-crop soybean (1.01 m), crimson clover (0.99 m), and tillage radish (0.99 m). At the Kansas Agricultural Watersheds, runoff was collected and analyzed for total suspended solids, total P, and DRP from 6 cover crop/fertilizer management treatments over two years. In the first water year the cover crop reduced runoff, sediment, and total P loss by 16, 56, and 52% respectively. There was a significant cover by fertilizer interaction for DRP loss. When P fertilizer was broadcasted in the fall with a cover crop, DRP loss was reduced by 60% but was unaffected in the other two P fertilizer treatments. Results were different in the second water year. The cover crop reduced sediment loss (71% reduction), as was seen in year one, but neither the cover crop nor the fertilizer management had a significant effect on runoff volume or total P loss overall. Contrary to the 2014-2015 results, cover crop increased DRP load by 48% in 2015-2016. DRP load was 2 times greater in the fall broadcast treatment than it was in the spring injected treatment but there was not a significant fertilizer by cover crop interaction. In order to determine the long term effects of cover crops and P fertilizer management P loss parameters should be tracked for several more years.
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Maral, Nuh. "Soil And Water Analysis Techniques For Agricultural Production." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611829/index.pdf.

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ABSTRACT SOIL AND WATER ANALYSIS TECHNIQUES FOR AGRICULTURAL PRODUCTION Maral, Nuh M. Sc., Department of Chemistry Supervisor: Prof. Dr. G. inci Gö
kmen May 2010, 108 pages In Turkey, usage of increasing amounts of fertilizers and pesticides by some unconscious farmers cause soil pollution and soil infertility for the crop production. Usage of water in excessive amounts and/or in poor quality for irrigation creates problems during the plant production. So in this study, soil and water samples were analyzed by using simple and reliable techniques for the soil and water quality in laboratories of METU and Soil Fertilizer and Water Resources Central Research Institute Laboratory in Ankara. The soil and water samples were collected using the standard techniques from Ankara, Bolu, Ç
orum and Kirikkale. According to the soil test results, the textures of the soil samples are found as loam and clay loam. The total salt content of the soil samples are between 0.033 &ndash
0.063 % (w/w), meaning they are low salinity soils (total salt less than 0.15 % w/w). The pH of the soil samples are between 7.86&ndash
8.15, they are slightly alkaline. The phosphorus concentrations of soil samples are in a range 4.95 to 35.45 P2O5 kg/da. Some of the soil samples have too high phosphorus content (greater than 12 P2O5 kg/da). The potassium content of soil samples are found between 141&ndash
286 K2O kg/da, so the soil is efficient for crop production. Lime content of the soil samples is between 1.04&ndash
2.67 % (w/w) CaCO3. It means all of the soil samples are calcareous but it is not too high for the agricultural production. Organic matter content of soil samples are found between 0.83&ndash
2.04 % (w/w). This means the soils are limited in their organic matter content for the crop production. Analysis of 22 water samples yielded EC values between 0.384 &ndash
1.875 dS/m. Water samples have moderate to high-salinity (if EC values between 0.205 and 2.250 dS/m), yet these can be used for the irrigation of the crops. pH values of water samples are found between 7.18-8.10, meaning that they are slightly alkaline. Bicarbonate concentrations of 19 of the water samples are greater than 200 mg/L. These waters may not be suitable for irrigation of ornamental plants. All of the water samples, except water samples from Gö
lbaSi, have sodium absorption ratio (SAR) values between 1 and 9. Water samples with low SAR values, except water samples from Gö
lbaSi, can be used for irrigation of almost all soils with little danger of developing harmful levels of sodium. The Residual Sodium Carbonate (RSC) values of water samples Ankara Gö
lbaSi and Sincan-1 are greater than 2.50 meq/L and these water samples are not suitable for the irrigation. RSC values of Etimesgut, Sincan-2 and Kazan water samples are positive and lower than the value 2.00 meq /L. All the other water samples have negative RSC values so they are the safe to use for irrigation. It has been observed that development of practical field analysis techniques for all soil and water quality parameters may be possible with exception of micronutrient determination. For determining soil and water quality parameters in the rural areas there is a need to establish a small laboratory with necessary equipment and apparatus and training one or two farmers. With the experience gained in this study, some of these techniques may be adapted to the rural field applications, so soil and water may be tested by the farmers for better yields.
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Ferguson, Scott. "The effects of upland soil liming on drainage water quality." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386744.

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Books on the topic "Soil colloids. Water quality"

1

Chhabra, Ranbir. Soil salinity and water quality. Brookfield, VT: A.A. Balkema, 1996.

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Reddy, K. R. Soil processes regulating water quality in wetlands. S.l: s.n, 1992.

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Finke, Peter A., Johan Bouma, and Marcel R. Hoosbeek, eds. Soil and Water Quality at Different Scales. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-3021-1.

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Brown, Kenneth Warren. Efficiency of soil core and soil-pore water sampling systems. Ada, OK: U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory, 1987.

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Brown, Kenneth Warren. Efficiency of soil core and soil-pore water sampling systems. Ada, OK: U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory, 1987.

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Lee, Teang Shui. Water quality, soil and managing irrigation of crops. Rijeka, Croatia: InTech, 2012.

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Boyd, Claude E. Water quality and pond soil analyses for aquaculture. Auburn University, Ala: Alabama Agricultural Experiment Station, Auburn University, 1992.

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Boyd, Claude E. Water quality and pond soil analysis for aquaculture. Auburn, Ala: Auburn University, Alabama Agricultural Experiment Station, 1993.

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J, Grayson Elisabeth, ed. Laboratory manual for the examination of water, waste water, and soil. 3rd ed. Weinheim: Wiley-VCH, 1999.

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Laboratory manual for the examination of water, waste water, and soil. Weinheim, Federal Republic of Germany: VCH Verlagsgesellschaft, 1988.

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Book chapters on the topic "Soil colloids. Water quality"

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McCool, D. K., and K. G. Renard. "Water Erosion and Water Quality." In Advances in Soil Science, 175–85. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8982-8_8.

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Lowery, Birl, William J. Hickey, M. A. Charlie Arshad, and Rattan Lal. "Soil Water Parameters and Soil Quality." In SSSA Special Publications, 143–55. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub49.c8.

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Bourrié, Guilhem, Nassira Salhi, Rabia Slimani, Abdelkader Douaoui, Belhadj Hamdi-aïssa, Gihan Mohammed, and Fabienne Trolard. "Irrigation, Water and Soil Quality." In Soils as a Key Component of the Critical Zone 4, 73–125. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119571940.ch2.

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Holt, R. F., D. R. Timmons, and R. E. Burwell. "Water Quality Obtainable under Conservation Practices." In Universal Soil Loss Equation, 45–53. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub8.c6.

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Bajracharya, K., D. A. Barry, S. Vigneswaran, and A. Das Gupta. "Heavy Metal Adsorption in Soil: Comparison of Bisolute Adsorption Models and Laboratory Experiments." In Water-Quality Hydrology, 19–26. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-0393-0_2.

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van der Zee, S. E. A. T. M., and F. A. M. de Haan. "Soil and Ground Water Quality Indicators." In Eurocourses, 235–59. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2528-4_13.

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Martin, D. L., J. R. Gilley, and R. W. Skaggs. "Soil Water Balance and Management." In Managing Nitrogen for Groundwater Quality and Farm Profitability, 199–235. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/1991.managingnitrogen.c10.

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Peterson, G. A., and J. F. Power. "Soil, Crop, and Water Management." In Managing Nitrogen for Groundwater Quality and Farm Profitability, 189–98. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/1991.managingnitrogen.c9.

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Chrysochoou, Maria. "Understanding Soil-Contaminant Interactions: A Key to Improved Groundwater Quality." In Women in Water Quality, 185–96. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17819-2_11.

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Lessoff, S. C., and P. Indelman. "Identifying Soil and Transport Properties Using a Model of Infiltration-Redistribution Flow and Transport in the Unsaturated Zone." In Water Resources Quality, 16–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56013-2_2.

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Conference papers on the topic "Soil colloids. Water quality"

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Noël, Vincent, Naresh Kumar, Maya Engel, Kristin Boye, Gordon Brown, and John R. Bargar. "Formation and Stability of Colloids Driven by Reducing Conditions: Impact on Water Quality." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1941.

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Laflen, John M. "Conservation Tillage, Soil Erosion and Water Quality." In Proceedings of the 13th Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2004. http://dx.doi.org/10.31274/icm-180809-799.

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Duffy, Mike. "Conservation Systems and Soil and Water Quality Symposium." In Proceedings of the 19th Annual Integrated Crop Management Conference. Iowa State University, Digital Press, 2007. http://dx.doi.org/10.31274/icm-180809-906.

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Isenhart, Thomas M., and Richard C. Schulz. "Improving Soil and Water Quality with Riparian Buffers." In Proceedings of the 1995 Integrated Crop Management Conference. Iowa State University, Digital Press, 1997. http://dx.doi.org/10.31274/icm-180809-579.

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Borozan, Aurica Breica. "ACTINOBACTERIA - SOURCE OF INFORMATION ON SOIL QUALITY." In 13th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/bc3/s13.002.

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Galitskaya, Polina. "RESTORATION OF SOIL QUALITY AFTER OIL POLLUTION." In 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b32/s13.033.

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Huang, He, and Lihong Liu. "Application of Water-Soluble Polymers in Soil Quality Improvement." In International Conference On Civil Engineering And Urban Planning 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412435.022.

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Bass, Randall P. "Quality Control of Soil-Cement Construction for Water Resources." In Geo-Denver 2000. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40500(283)2.

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M. Reza Savabi, D. Shinde, K. Konomi, P. Nkedi-Kizza, and K. Jayachandran. "Effect of soil amendments (composts) on water balance and water quality- Model Simulations." In 2003, Las Vegas, NV July 27-30, 2003. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2003. http://dx.doi.org/10.13031/2013.13802.

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Fessehaie Ghidey, E. J. Sadler, E. E. Alberts, R. N. Lerch, and C. Baffaut. "Simulating Hydrology and Water Quality of a Claypan Soil Watershed." In 2005 Tampa, FL July 17-20, 2005. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.18924.

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Reports on the topic "Soil colloids. Water quality"

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Sharma, P., J. Moncrief, and S. Gupta. Impact of alfalfa on soil and water quality. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/621882.

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Beck, Deborah. Effects of Biochar-Amended Soil on the Water Quality of Greenroof Runoff. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.47.

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Vohden, Jim, and M. A. Maurer. Quality assurance plan for the Alaska soil and water conservation board's ground-water quality assessment project in the Matanuska-Susitna Borough. Alaska Division of Geological & Geophysical Surveys, 1991. http://dx.doi.org/10.14509/1484.

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Tolbert, V. R., J. E. Lindberg, and T. H. Green. Soil and water quality implications of production of herbaceous and woody energy crops. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/634029.

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Licht, Mark, Liz Juchems, Jacqueline Comito, Matthew Helmers, and Sarah Carlson. Demonstrating Cover Crop Mixtures on Iowa Farmland:Management, Soil Health, and Water Quality Benefits. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-1919.

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Licht, Mark, Liz Juchems, Jacqueline Comito, Matthew Helmers, and Sarah Carlson. Demonstrating Cover Crop Mixtures on Iowa Farmland:Management, Soil Health, and Water Quality Benefits. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-1933.

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Licht, Mark, Liz Juchems, Jacqueline Comito, Matthew Helmers, and Sarah Carlson. Demonstrating Cover Crop Mixtures on Iowa Farmland:Management, Soil Health, and Water Quality Benefits. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-1972.

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Licht, Mark, Liz Juchems, Jacqueline Comito, and Matthew Helmers. Demonstrating Cover Crop Mixtures on Iowa Farmland: Management, Soil Health, and Water Quality Benefits. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-1988.

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Licht, Mark, Liz Juchems, Jacqueline Comito, Matthew Helmers, and Sarah Carlson. Demonstrating Cover Crop Mixtures on Iowa Farmland: Management, Soil Health, and Water Quality Benefits. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-2067.

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Licht, Mark, Liz Juchems, Jacqueline Comito, Matthew Helmers, and Sarah Carlson. Demonstrating Cover Crop Mixtures on Iowa Farmland: Management, Soil Health, and Water Quality Benefits. Ames: Iowa State University, Digital Repository, 2018. http://dx.doi.org/10.31274/farmprogressreports-180814-2091.

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