Relevant bibliographies by topics / Agronomic measurements

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Agronomic measurements'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Agronomic measurements"

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Schmitz, Peder K., and Hans J. Kandel. "Using Canopy Measurements to Predict Soybean Seed Yield." Remote Sensing 13, no. 16 (2021): 3260. http://dx.doi.org/10.3390/rs13163260.

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Predicting soybean [Glycine max (L.) Merr.] seed yield is of interest for crop producers to make important agronomic and economic decisions. Evaluating the soybean canopy across a range of common agronomic practices, using canopy measurements, provides a large inference for soybean producers. The individual and synergistic relationships between fractional green canopy cover (FGCC), photosynthetically active radiation (PAR) interception, and a normalized difference vegetative index (NDVI) measurements taken throughout the growing season to predict soybean seed yield in North Dakota, USA, were i
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Mohammadi, Mohammadreza, John Finnan, Mark Sterling, and Chris Baker. "A calibrated oat lodging model compared with agronomic measurements." Field Crops Research 255 (September 2020): 107784. http://dx.doi.org/10.1016/j.fcr.2020.107784.

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Enciso, Juan, Carlos A. Avila, Jinha Jung, et al. "Validation of agronomic UAV and field measurements for tomato varieties." Computers and Electronics in Agriculture 158 (March 2019): 278–83. http://dx.doi.org/10.1016/j.compag.2019.02.011.

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HOCKETT, E. A. "RELATIONSHIP OF ADVENTITIOUS ROOTS AND AGRONOMIC CHARACTERISTICS IN BARLEY." Canadian Journal of Plant Science 66, no. 2 (1986): 257–80. http://dx.doi.org/10.4141/cjps86-040.

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The number of adventitious roots of two- and six-row barleys (Hordeum vulgare L.) grown under irrigation at Bozeman, Montana in 1970 and 1971, was related to yield and other agronomic characteristics. Adventitious roots were counted shortly before heading and at maturity and correlated with 15 agronomic characteristics. Adventitious root number was not correlated with yield of barley, except for two out of six cases in two-row barley. Roots per tiller, per plant and per square metre were all positively correlated with each other. The number of kernels per spike increased as roots per tiller in
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Duru, Michel, Pablo Cruz, and Jean Pierre Theau. "A simplified method for characterising agronomic services provided by species-rich grasslands." Crop and Pasture Science 61, no. 5 (2010): 420. http://dx.doi.org/10.1071/cp09296.

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In order to encourage farmers and their advisors to promote species-rich grasslands, the agronomic services they can provide should be demonstrated. Methods based on functional ecology are promising, but difficult to use in an applied context. Thus, we aimed to construct a simplified method, tailored for non-researchers, for assessing grassland agronomic services. We assess them by focusing on the grass species that was coupled to a leaf dry matter content (LDMC) database. These simplifications are supported by several hypotheses tested in our paper: (i) trade-offs between agronomic properties
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Edenborn, S. L., A. J. Sexstone, Y. Sutanto, and J. A. Chapman. "Relationships among Contrasting Measurements of Microbial Dynamics in Pasture and Organic Farm Soils." Applied and Environmental Soil Science 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/537459.

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Soil bacteria exhibit short-term variations in community structure, providing an indication of anthropogenic disturbances. In this study, microbial biomass carbon (MBC), potentially mineralizable nitrogen (PMN), community level physiological profiling (CLPP), and culture-dependent DGGE (CD DGGE) fingerprinting of the 16S rRNA gene were used to compare microbial communities in organic farm and pasture soils subjected to differing agronomic treatments. Correlation analyses revealed significant relationships between MBC, PMN, and data derived from microbial community analyses. All measures separa
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Barmeier, Gero, Bodo Mistele, and Urs Schmidhalter. "Referencing laser and ultrasonic height measurements of barleycultivars by using a herbometre as standard." Crop and Pasture Science 67, no. 12 (2016): 1215. http://dx.doi.org/10.1071/cp16238.

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Assessment of plant height is an important factor for agronomic and breeder decisions; however, current field phenotyping, such as visual scoring or using a ruler, is time consuming, labour intensive, costly and subjective. For agronomists and plant breeders, the most common method used to measure plant height is still a meter stick. In a 3-year study, we have adopted a herbometre similar to a rising plate meter as a reference method to obtain the weighted plant height of barley cultivars and to evaluate vehicle-based ultrasonic and laser distance sensors. Sets of 30 spring barley cultivars an
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GARNSWORTHY, P. C., J. WISEMAN, and K. FEGEROS. "Prediction of chemical, nutritive and agronomic characteristics of wheat by near infrared spectroscopy." Journal of Agricultural Science 135, no. 4 (2000): 409–17. http://dx.doi.org/10.1017/s0021859699008382.

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Near infrared spectroscopy (NIRS) is widely used in the flour milling industry for rapid determination of moisture and protein in wheat. However, these measurements give little indication of the nutritive value of wheat when fed to poultry or pigs. Accurate estimates of nutritive value require specialist facilities and are time-consuming and costly. Accordingly, prediction from chemical or NIRS measurements would be of some considerable benefit. In the current study 160 samples of wheat, representing 24 different varieties, were used to generate NIRS calibration equations for chemical, nutriti
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Vitharana, U. W. A., M. Van Meirvenne, D. Simpson, L. Cockx, and G. Hofman. "Agronomic consequences of potential management zones delineated on the basis of EM38DD measurements." Near Surface Geophysics 6, no. 5 (2007): 289–96. http://dx.doi.org/10.3997/1873-0604.2008003.

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Sojka, R. E., G. A. Lehrsch, S. J. Kostka, et al. "Soil Water Measurements Relevant to Agronomic and Environmental Functions of Chemically Treated Soil." Journal of ASTM International 6, no. 1 (2009): 101497. http://dx.doi.org/10.1520/jai101497.

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Dissertations / Theses on the topic "Agronomic measurements"

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Roth, Guy W., and n/a. "Agronomic measurements to validate airborne video imagery for irrigated cotton management." University of Canberra. Resource and Environmental Sciences, 1993. http://erl.canberra.edu.au./public/adt-AUC20050801.124927.

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Water is a major factor limiting cotton production and farmers must aim to optimise crop water use through timely irrigation scheduling decisions. Airborne video imagery when calibrated with a low density of ground based observations, offers the potential for near real time monitoring of crop condition, through sequential coverages of entire cotton fields. Using commercially available video equipment mounted on a light aircraft images were acquired of field experiments that were established in commercial cotton fields to test if the imagery could monitor changes in crop condition. Ground data
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Arif, Mobeen. "Measurement of horticulture produce quality." Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273953.

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Aldakheel, Yousef Yacoub. "Remote sensing of crop water stress : measurements and modelling." Thesis, University of Salford, 1998. http://usir.salford.ac.uk/43021/.

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Parker, Steven Roy. "Studies on some factors influencing the reliability of disease measurements in winter wheat crops." Thesis, University of Bristol, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336955.

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Siqueira, Rafael Telles Tenorio de. "Characterizing nitrogen deficiency of maize at early growth stages using fluorescence measurements." Thesis, Colorado State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10138898.

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<p> Among all nutrients that are important for crop production, nitrogen (N) is one of the least efficiently utilized, mainly due to its high mobility in soil. The possibility of using crop sensing in real-time to detect variability in N deficiency within a field has the potential to enhance N efficiency, increase crop yield, and reduce potential environmental risks and crop production costs. Potassium (K), another important crop nutrient, can also lead to higher yield when applied in the right amount and manner. Real-time fluoro-sensing is a new technology for crop sensing and studies have sh
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Waine, Toby William. "Non-invasive soil property measurement for precision farming." Thesis, Cranfield University, 1999. http://dspace.lib.cranfield.ac.uk/handle/1826/11322.

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This work investigates the application of new sensors to enable agronomists and farm managers to make decisions for variable treatment strategies at key crop growth stages. This is needed to improve the efficiency of crop production in the context of precision farming. Two non-invasive sensors were selected for investigation. These were: 1) The MGD-1 ion mobility gas detector made by Environics OY, Finland. 2) The EM38 electromagnetic induction (EMI) sensor made by Geonics Inc., Canada. The gas detector was used to determine residual nitrogen and to measure carbon dioxide gas as a surrogate in
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Steger, Adele Johnson 1952. "Timing the initial post-plant irrigation for cotton using leaf water potential measurements." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/278489.

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A two year study was conducted to determine the optimum timing of the initial post-plant irrigation for cotton (Gossypium hirsutum L.). A short-season Upland variety, DPL 20, was planted on 19 April 1993 and 15 April 1994 at the Marana Agricultural Center. Daily midday leaf water potential measurements were taken using the pressure chamber technique. Treatments, designated T1, T2, and T3, received the initial post-plant irrigation when the midday LWP measured -1.5, -1.9, and -2.3 MPa, respectively. Soil-water data was collected at 25 cm depth increments using neutron attentuation. Yields were
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Baum, Kristen A. "Air emissions measurements at cattle feedlots." Thesis, Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/775.

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Moreno-Urquiza, Magdalena 1967. "Intelligent data acquisition system for continuous measurements of soil moisture in the field." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278271.

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A data acquisition system to collect soil moisture readings at 60 field locations was developed. The system predicted a resistance value from a measured counts per time. An error was associated with the measured counts and time, however, this error was minimized by increasing the time for resistance measurement. The effect of temperature was minimized by an automatic calibration of the system before collecting readings. The Watermark electrical resistance moisture sensor was used to sense water content. The system, including eight sensors, was tested in the field. The data collected was diffic
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Aldosari, Saleh 1964. "Measurement of and selection for insecticide resistance in various populations of beet armyworm Spodoptera Exigua (Hubner)." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278716.

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A comparative study was performed to investigate the tolerance levels of beet armyworm to three insecticides, cyfluthrin, profenofos, and methomyl. The field strains were collected from Yuma and Marana, AZ whereas the susceptible laboratory strain was obtained from California. Dosage-mortality data were obtained by topical application on third instar larvae. Compared to the susceptible strain, both Yuma and Marana strains exhibited an increase in the LD50 to cyfluthrin by 15.65 and 5.45-fold, respectively. Both strains also exhibited an increase in the LD50 to profenofos and methomyl by 14.10,
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Books on the topic "Agronomic measurements"

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Current viewpoints on the use of soil nitrate tests in the South: Proceedings of a symposium conducted by the Southern Branch, American Society of Agronomy, February 4, 1992, Lexington Center Heritage Hall, Lexington, KY. The Society, 1992.

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Book chapters on the topic "Agronomic measurements"

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Davidson, Donald T. "Penetrometer Measurements." In Agronomy Monographs. American Society of Agronomy, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr9.1.c37.

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Hubbard, K. G., and S. E. Hollinger. "Standard Meteorological Measurements." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr47.c1.

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Howard, Allan, Aston Chipanshi, Andrew Davidson, et al. "Measurement Techniques." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc., 2018. http://dx.doi.org/10.2134/agronmonogr60.2014.0056.5.

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Harper, Lowry A. "Ammonia: Measurement Issues." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr47.c15.

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Richards, S. J. "Soil Suction Measurements with Tensiometers." In Agronomy Monographs. American Society of Agronomy, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr9.1.c9.

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Wagner-Riddle, C., G. W. Thurtell, and G. C. Edwards. "Trace Gas Concentration Measurements for Micrometeorological Flux Quantification." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr47.c14.

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Campbell, Gaylon S., and George R. Diak. "Net and Thermal Radiation Estimation and Measurement." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr47.c4.

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Blanchar, R. W. "Measurement of Sulfur in Soils and Plants." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr27.c17.

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Klute, A. "Laboratory Measurement of Hydraulic Conductivity of Unsaturated Soil." In Agronomy Monographs. American Society of Agronomy, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr9.1.c16.

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Rochette, Philippe, and Gordon L. Hutchinson. "Measurement of Soil Respiration in situ: Chamber Techniques." In Agronomy Monographs. American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr47.c12.

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Conference papers on the topic "Agronomic measurements"

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S.U., Susha Lekshmi, and D. N. Singh. "Keynote Speech: Significance of Soil Moisture Content and its Measurement Techniques." In International Web Conference in Civil Engineering for a Sustainable Planet. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.112.keynote4.

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Soil moisture is an inevitable part of the soil and has a significant influence on the engineering, agronomic, geological, ecological, biological, and hydrological behavior of the soil mass. A small change in the soil moisture content alters the behavior or mechanical properties of the soil mass, viz., consistency, compatibility, cracking, swelling, shrinkage, and density. The soil moisture content can be considered as a multi-disciplinary parameter as it has been used as a critical parameter in civil, agricultural, and environmental engineering disciplines. In geotechnical engineering, constr
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Reports on the topic "Agronomic measurements"

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Sharkey, T. D. Measurements of metabolically active inorganic phosphate in plants growing in natural and agronomic settings and under water stress. [Stromal Phosphate]. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/6325903.

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