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Journal articles on the topic 'Phosphorus-potassium fertilizer'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Setyowati, E., Samanhudi, and M Rahayu. "Shallot Growth on Organic Nano NPK Fertilizer Application." IOP Conference Series: Earth and Environmental Science 1490, no. 1 (2025): 012023. https://doi.org/10.1088/1755-1315/1490/1/012023.

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Abstract The level of shallot crop productivity in Indonesia still needs to be improved. To increase shallot productivity, fertilization innovation using nano organic fertilizer is needed. This research studies the effect of nano organic NPK fertilizer on plant growth shallot using a completely randomized design (CRD) with two factors, namely shallot varieties and doses of nano organic NPK fertilizer. The varieties used were Crok Kuning and Tajuk, while the fertilizer doses used were chemical fertilizer Nitrogen 180; Phosphorus 120; Potassium 60 kg/ha, organic nano NPK fertilizer Nitrogen 140;

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2

Nafis, Fika Fatwa Anin, Djoko Kustono, and Anindya Hapsari. "Analysis of Nitrogen, Phosphorus and Potassium Concentration in Modified Liquid Organic Fertilizers of Vegetable Waste, Charcoal and Snails." Preventia : The Indonesian Journal of Public Health 8, no. 1 (2023): 58. http://dx.doi.org/10.17977/um044v8i12023p58-61.

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Nitrogen, phosphorus and potassium concentration in liquid organic fertilizer can be obtained from organic materials. Liquid organic fertilizer can be made from vegetable waste, charcoal, and gold snail (Pomacea canaliculata L.). This study aimed to know the concentration of nitrogen, phosphorus and potassium in liquid organic fertilizers of waste vegetable, charcoal and snail. Methods used to test nitrogen was the Kjeldahl method, while potassium and phosphorus tested with spectrophotometer. The results showed that the concentration of nitrogen, phosphorus and potassium in liquid organic fert

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3

Andeshmand, Abdul Bari. "Effect of Different Levels of Nitrogen, Phosphorus and Potassium Fertilizers on Yield of Cucumber (Cucumis sativus L.) Under The Climatic Conditions of Takhar Province." Journal for Research in Applied Sciences and Biotechnology 3, no. 5 (2024): 35–38. http://dx.doi.org/10.55544/jrasb.3.5.7.

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The experiment was carried out in the research farm of Agriculture Faculty, Takhar University under the title of the effect of nitrogen fertilizer with different amounts of phosphorus and potassium fertilizers on cucumber yield under the climatic conditions of Takhar Province, Afghanistan. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications and four treatments. Treatments T1 without of any fertilizer, T2 nitrogen 80 kg ha-1, phosphorus fertilizer 100 kg ha-1, and potassium fertilizer 85 kg ha-1. T3 nitrogen fertilizer 80 kg ha-1, phosphorus fertiliz

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4

YADAV, R. L. "FACTOR PRODUCTIVITY TRENDS IN A RICE–WHEAT CROPPING SYSTEM UNDER LONG-TERM USE OF CHEMICAL FERTILIZERS." Experimental Agriculture 34, no. 1 (1998): 1–18. http://dx.doi.org/10.1017/s0014479798001070.

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A long-term fertilizer experiment was conducted on the rice–wheat cropping system at four locations in India. Trends in partial factor productivity of applied nitrogen, benefit : cost ratio of fertilizer application, grain yield, changes in soil organic carbon, and available nitrogen (N), phosphorus (P) and potassium (K) were studied in control (N0P0K0), N (N120P0K0), NP (N120P80K0), NK (N120P0K40) and NPK (N120P80K40) fertilizer treatments. On average at all locations, continuous rice–wheat cropping for 16 years decreased the yield of rice by 57% in unfertilized plots and by 32% in plots rece

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5

Mohammed, Saad A., and Mohammed H. Naile. "EFFECT OF MYCORRHIZA INOCULATION AND BIOZYME SPRAY ON THE CONTENT OF LEAVES AND FRUITS OF NUTRIENTS ELEMENTS OF SUMMER SQUASH." Diyala Agricultural Sciences Journal 12, special (2020): 558–70. http://dx.doi.org/10.52951/dasj.20121047.

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A experiment of field with conducted for the spring season 2018 on summer squash in the fields of the Department of Horticulture and Garden Engineering, College of Agriculture, Al-Anbar University to find out the effect of adding bio fertilizer and spraying with Biozyme as bio fertilizers were added at four levels1-Without adding (comparison) 2- Complete chemical fertilizer recommendation + 50 g poultry fertilizer 3- Half fertilizer recommendation + 50 g poultry fertilizer + 50g bio fertilizer 4- 50 g poultry fertilizer + 50 g bio fertilizer and Number of times sprayed with the Biozyme it was

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6

Shoniyozov, Bobur Ortikov Tulkin. "INFLUENCE OF DOSES OF NITROGEN FERTILIZERS ON THE CHEMICAL COMPOSITION OF AMARANTH PLANTS." ACADEMIC RESEARCH IN MODERN SCIENCE 2, no. 3 (2023): 136–39. https://doi.org/10.5281/zenodo.7593488.

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The article presents data on the effect of nitrogen fertilizer norms on the chemical composition of amaranth plants, that is, the content of nitrogen, phosphorus and potassium in various plant organs. The application of nitrogen fertilizers at a rate of 150 to 300 kg/ha against the background of phosphorus-potassium fertilizers contributed to an increase in the content of nitrogen, phosphorus and potassium in grain, above-ground biomass, crop residues and roots of amaranth plants. At the same time, nitrogen fertilizers had a different effect on increasing the content of nitrogen, phosphorus an

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7

HU, CHENG, SHUANG-LAI LI, YAN QIAO, DONG-HAI LIU, and YUN-FENG CHEN. "EFFECTS OF 30 YEARS REPEATED FERTILIZER APPLICATIONS ON SOIL PROPERTIES, MICROBES AND CROP YIELDS IN RICE–WHEAT CROPPING SYSTEMS." Experimental Agriculture 51, no. 3 (2014): 355–69. http://dx.doi.org/10.1017/s0014479714000350.

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SUMMARYLong-term fertilization experiment has been conducted since 1981 to study the effect of soil management practices on soil fertility, soil carbon and nitrogen sequestration, soil culturable microbe counts and crop yields at the Nanhu Experimental Station in the Hubei Academy of Agricultural Sciences (situated in the middle reach of the Yangtze River and the rice–wheat cropping system). The experiment was designed with the following eight treatments: (1) unfertilized treatment: Control; (2) inorganic nitrogen fertilizer treatment: N; (3) inorganic nitrogen plus inorganic phosphorus fertil

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8

Suntoro, G. Herdiansyah, H. Widijanto, A. D. Tjahjanto, C. Puspitasari, and H. R. Wardhana. "Effect of green manure on the availability of Phosphorus and Potassium nutrients in Vertisols." IOP Conference Series: Earth and Environmental Science 1362, no. 1 (2024): 012045. http://dx.doi.org/10.1088/1755-1315/1362/1/012045.

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Abstract The need for rice as a staple food continues to increase, increasing the demand for land. However, the soil’s availability of nutrients is decreasing due to inappropriate and excessive use of chemical fertilizers, causing soil degradation. Green fertilizer is an effective effort to reduce excessive use of chemical fertilizers. The research aims to determine the use of green manure in influencing the availability of phosphorus and potassium nutrients. The research was conducted on Vertisols in Weru District, Sukoharjo Regency. The research was carried out using experimental methods. Th

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9

Koestoer, Raldi H., Tri Ligayanti, Sutrasno Kartohardjono, and Harris Susanto. "Down-streaming Small-Scale Green Ammonia to Nitrogen-Phosphorus Fertilizer Tablets for Rural Communities." Emerging Science Journal 8, no. 2 (2024): 625–43. http://dx.doi.org/10.28991/esj-2024-08-02-016.

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This study aims to evaluate the growth and production of sweet corn plants in response to the application of commercial NPK fertilizer and various doses of nitrogen-phosphorus fertilizer tablets. From early October 2022 to late January 2023, research was conducted at Research and Development Luas Birus Utama to produce nitrogen-phosphorus fertilizer tablets and at Research and Development Syngenta Indonesia Cikampek Station, Karawang, to perform a semi-field analysis. A factorial randomized block design with two treatment factors was employed in this study. The first factor was five types of n

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10

Gelaye, Yohannes, Melkamu Alemayehu, and Dereje Ademe. "Potato (Solanum tuberosum L.) Growth and Quality as Influenced by Inorganic Fertilizer Rates in Northwestern Ethiopia." International Journal of Agronomy 2022 (August 5, 2022): 1–9. http://dx.doi.org/10.1155/2022/9476021.

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Potato (Solanum tuberosum L.) is an important tuber crop that is highly affected by poor soil fertility and nutrient disparities. Nutrient depletion due to intensive monocropping and poor soil management practices is a serious problem in Ethiopia, including in northwestern areas. Therefore, an experiment was conducted in the East Gojjam zone of northwestern Ethiopia to evaluate the influence of phosphorus and potassium fertilizer rates on potato tuber production. Three phosphorus levels (0, 34.5, and 69 kg/ha−1) and four potassium levels (0, 100, 200, and 300 kg/ha−1) were set out in a factori

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11

Boyhan, George E., Reid L. Torrance, Ronald H. Blackley, M. Jefferson Cook, and C. Randell Hill. "EVALUATION OF FERTILITY PRACTICES FOR VIDALIA ONIONS." HortScience 40, no. 3 (2005): 885e—886. http://dx.doi.org/10.21273/hortsci.40.3.885e.

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Fertilizer rates of N, P, K were evaluated over 4 years (2000–03) as were different sources of experimental and commercial fertilizers. The highest total yields and yields of jumbos (≥7.6 cm) occurred with nitrogen rates of 140–168 kg·ha–1. Neither phosphorus nor potassium rates had an affect on total yield. Phosphorus rates of 0-147 kg·ha–1 and potassium rates of 0–177 kg·ha–1 were evaluated. Increasing nitrogen fertilizer resulted in increasing leaf tissue nitrogen, but did not affect P, K, Ca, or S. Increasing phosphorus fertilizer increased leaf tissue phosphorus only slightly (p = 0.060)

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12

Kaca, I. Nyoman, Luh Suariani, Ni Ketut Etty Suwitari, I. Wayan Eka Putra Ariawan, and I. Made Adi Wiratama. "The Use of Pig Manure Fertilizer on the Growth, Production, Protein Content, and TDN of Pakchong Grass." Formosa Journal of Multidisciplinary Research 3, no. 11 (2024): 4289–304. https://doi.org/10.55927/fjmr.v3i11.11941.

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Manure is a fertilizer that comes from a mixture of livestock waste, urine, and leftover livestock feed. Pig manure can be used as fertilizer because it contains Nitrogen, phosphorus and potassium. Solid pig manure contains quite high Nitrogen nutrients of 0.95%, Phosphorus 0.35%, and Potassium 0.40%, so that pig manure is effective as an organic fertilizer that will be beneficial for plant growth. This study aims to see the effect of the use of pig manure fertilizer on the growth, production, nutritional quality and TDN of Pakchong Grass. A Randomized Block Design (RAK) was used with five tre

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13

Shehata, Ibrahim E., Mostafa M. A. Hammam, and Mahfouz M. M. Abd-Elgawad. "Effects of Inorganic Fertilizers on Virulence of the Entomopathogenic Nematode Steinernema glaseri and Peanut Germination under Field Conditions." Agronomy 11, no. 5 (2021): 945. http://dx.doi.org/10.3390/agronomy11050945.

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The use of entomopathogenic nematodes as safe biopesticidal alternatives to hazardous chemicals entails improving the prediction of their native efficacy against soil pests. The effect of ten inorganic fertilizers, used extensively in Egypt, on the virulence of indigenous Steinernema glaseri and peanut germination was examined herein. The nematode added either before or tank-mixed with 1%, 5%, and 10% concentrations of each fertilizer in a peanut field was sampled 1 and 7 days before and 1, 7, 14, 21, 28, 49, and 56 post-tank mixes to check for S. glaseri virulence via baiting soil with Galler

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14

Wang, Wei, Yue Jiang, Shanshan Cai, Yumei Li, Lei Sun, and Juanjuan Qu. "Metagenomics Reveals the Effects of Organic Material Co-Application on Phosphorus Cycling Functional Genes and Bioavailable Phosphorus." Agronomy 15, no. 5 (2025): 1187. https://doi.org/10.3390/agronomy15051187.

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Phosphorus is essential for crop growth, but excessive use of chemical fertilizers can lead to environmental issues. The incorporation of organic materials has the potential to enhance phosphorus availability and promote soil phosphorus cycling. This study investigated the effects of chemical fertilizer co-application with two organic materials on soil properties and functions. Four treatments were established: (1) chemical fertilizer alone (SC, consisting of urea, ammonium phosphate, and potassium sulfate), (2) chemical fertilizer with corn-straw-derived biochar (SCB), (3) chemical fertilizer

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15

Magela, Mara Lúcia Martins, Reginaldo de Camargo, Regina Maria Quintão Lana, and Melissa Cristina de Carvalho Miranda. "Application of organomineral fertilizers sourced from filter cake and sewage sludge can affect nutrients and heavy metals in soil during early development of maize." June 2019, no. 13(06) 2019 (June 20, 2019): 863–73. http://dx.doi.org/10.21475/ajcs.19.13.06.p1538.

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This study determined the changes in soil nutrients, organic carbon, organic matter and heavy metals during the early development stages of maize fertilized with different sources and doses. Also, this study confirmed that the used biosolid in the formulation of organomineral fertilizer makes greater efficacy than the effects promoted by mineral or filter cake organomineral fertilizers already used in agricultural. The experiment was done in a greenhouse at the Federal University of de Uberlândia - Campus Umuarama. The experimental design was randomized block design, as a 2 x 5 + 2 factorial,

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16

Setyowati, Endang, Samanhudi Samanhudi, and Muji Rahayu. "Pemberian Pupuk Nano NPK Organik Terhadap Hasil Bawang Merah." Agrosains : Jurnal Penelitian Agronomi 26, no. 2 (2025): 80. https://doi.org/10.20961/agsjpa.v26i2.97626.

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<p><em>The continuous use of chemical fertilizers can reduce nutrient absorption efficiency and contribute to gas emissions that trigger global warming. One solution to increase nutrient absorption efficiency is to use nano fertilizers. This study aims to evaluate the effect of organic NPK nano fertilizer application on shallot yield. The research was conducted using a completely randomized design (CRD) arranged in a factorial design, consisting of two treatment factors with 12 treatment combinations repeated three times. Fertilization of shallot plants by applying nano NPK fertili

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17

Boyhan, George E., Reid L. Torrance, David E. Curry, Pamela M. Lewis, Donna O. Linton, and C. Randy Hill. "Evaluation of Transplant Fertility of Short-day Onions in Southeast Georgia." HortScience 37, no. 4 (2002): 651–55. http://dx.doi.org/10.21273/hortsci.37.4.651.

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Preplant levels of 5N-4.4P-12.4K (-5S or -9S) and sidedress applications of CaNO3 were evaluated in onion (Allium cepa L.). In addition, high phosphorus fertilizers 18N-20.1P-0K (diammonium phosphate) and liquid 10N-14.8P-0K were evaluated on sites with and without high residual phosphorus levels as well as their interaction with onion cultivars. Sidedress applications of CaNO3 had a significant effect on plant height and an interaction with preplant 5N-4.4P-12.4K fertilizer. There was a linear increase in plant height with increasing applications of 5N-4.4P-12.4K from 0 to 1569 kg·ha-1 with t

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18

Mykolaiko, I. "Influence of growing conditions of mustard seed on its storage duration." Balanced nature using, no. 1 (February 29, 2024): 95–101. https://doi.org/10.33730/2310-4678.1.2024.302632.

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The article presents the results of research on determining the influence of seed growing conditions on its quality during long-term storage. The study was conducted with seeds that had high quality indicators (germination and germination energy) — 83–84%, which were grown without fertilizers (control) and with the introduction of phosphorus-potassium fertilizers in a dose of P45K45, both without foliar fertilization and with one-time nitrogen fertilization fertilizers in a dose of N15. It was established that, on average, for all varieties during the first year of seed storage both in the con

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19

Tobing Lukiyono, Yauwan, Edza Aria Wikurendra, Salfa Salsabilah Zain, and Satriyo Siswo Utomo. "Nutrient analysis of fermented chicken feather fertilizer waste using Bacillus subtilis on the growth of green spinach (Amaranthus tricolor)." Bali Medical Journal 12, no. 3 (2023): 2855–58. http://dx.doi.org/10.15562/bmj.v12i3.4444.

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Introduction: Farmers generally provide NPK chemical fertilizers (Nitrogen, Phosphorus, Potassium) to provide nutrients for green spinach plants. However, the use of NPK chemical fertilizers harms the environment. Nowadays, chicken feathers are known as beneficial for fertilizing plants, similar to NPK chemical fertilizers. Fermentation of chicken feathers by Bacillus sp. can improve the quality of protein in chicken feather fertilizers which can be used as a supplement in renewing soil conditions. Thus, this study is aimed to evaluate the nutrient component of fermented chicken feather fertil

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20

Zhantasov, K. T., Z. U. Myrhalykov, S. M. Moldabekov, et al. "Agronomical Field Testing of New Kinds of Multicomponent Mineral Fertilizers." Eurasian Chemico-Technological Journal 17, no. 1 (2014): 79. http://dx.doi.org/10.18321/ectj197.

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Analysis of modern scientific literature and patents has shown the absence of acid-free production technology of a mechanically activated multicomponent mineral fertilizer containing water-holding substances. Experimental researches connecting with mechanochemical activation and physicochemical properties of Karatau phosphorites prove a possibility of development of a new multicomponent mineral fertilizer. Application of inorganic and organic activators considerably improves qualities of fertilizers because the developed fertilizer mixtures contain nitrogen, phosphorus, potassium, humate and m

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21

Saydyasheva, Galina, and Kseniya Zayceva. "EFFICIENCY OF THE MODIFIED FERTILIZER AND MICROBIOLOGICAL PREPARATION ON SPRING BARLEY IN THE CONDITIONS OF THE FOREST-STEPPE OF THE VOLGA REGION." Vestnik of Kazan State Agrarian University 16, no. 2 (2021): 39–42. http://dx.doi.org/10.12737/2073-0462-2021-39-42.

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Studies to determine the effect of mineral, biomineral fertilizers and biological products on the content of nutrients (nitrogen, phosphorus and potassium) during the growing season in spring barley plants were carried out in 2015-2017 on leached heavy loam chernozem of Ulyanovsk region. The soil of the experimental site contained: humus 6.43...6.62 % (according to Tyurin), total nitrogen-0.26 % (according to Kjeldahl), mobile phosphorus and potassium-214 ... 228 and 101...117 mg/kg of soil, respectively (according to Chirikov), pHKCl – 6.3...6.8 (GOST 26483-85), hydrolytic acidity – 1.20...1.

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22

Najm, Sahar Hamza, and Hayyawi Wewa Attia Al-Juthery. "Effect of Phosphorous, Potassium Nano-Fertilizers and Spraying of (Sepehr 4) Nano-Fertilizer and Carbon Nanotubes on the Growth and Yield of Rice (Oryza sativa L.)." IOP Conference Series: Earth and Environmental Science 1259, no. 1 (2023): 012016. http://dx.doi.org/10.1088/1755-1315/1259/1/012016.

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Abstract The purpose of this experiment is to compare the growth and yield of the Amber 33 cultivar of rice after being fertilised with nano-phosphorous and nano-potassium, as well as after being sprayed with carbon nanotubes and nano-synthetic fertiliser (Sepehr 4) (K+Fe+Zn+Mn). Between June 15 and November 23, 2022, researchers in Babylon province, Iraq, combed through the area known as District 41-Al-Hussainiya, which is located to the south of the city of Hilla. Using a Randomised Complete Blocks Design (RCBD), two levels of phosphorus and potassium nano-fertilizers (0 and 10 kg.ha-1) were

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23

Yudhistira, Ary, Hari Suprapto, and Laksmi Sulmartiwi. "Influence of addition surimi wastewater to macronutrient content (nitrogen, phosphor, and potassium) of gracilaria sp. Liquid organic fertilizer." Jurnal Ilmiah Pertanian dan Peternakan 1, no. 1 (2023): 19–25. http://dx.doi.org/10.35912/jipper.v1i1.2601.

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Purpose: The purpose of this study was to determine the increase in the nutrient content of nitrogen, phosphorus, and potassium in Gracilaria sp. liquid organic fertilizer containing surimi wastewater. Research Methodology: The study used an experimental method with a completely randomized design consisting of four treatments and five replications. The treatment used was the addition of 0 %, 80 %, 90 %, and 100% surimi wastewater. The macronutrient content (nitrogen, phosphorus, and K) of the fertilizer was measured after 14 days of fermentation. Results: The results of this study indicate tha

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24

Amra, Bratovcic 1. Mirnesa Zohorovic 2. Amra Odobasic 3. Indira Sestan4. "EFFICIENCY OF FOOD WASTE AS AN ORGANIC FERTILIZER." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 7, no. 6 (2018): 527–30. https://doi.org/10.5281/zenodo.1299043.

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The challenge of many researchers today is sustainable development. So when we talk about food waste management, there are several ways to apply it. One of them is the production of compost fertilizers by home composting as the most sustainable option for managing organic food waste by natural decomposition process at atmospheric pressure and at room temperature. The physical parameters were tested for pH value and the chemical parameters such as organic matter, Nitrogen, Phosphorus and Potassium. In this work we have investigated 2 different samples under the name goat manure fertilizer and o

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25

Vu, Hang T. T., and Thang N. Vu. "Effects of potassium and phosphorous on growth and yield of soybean variety VNUAĐ2 in Gia Lam – Ha Noi." Journal of Agriculture and Development 21, no. 05 (2022): 20–29. http://dx.doi.org/10.52997/jad.3.05.2022.

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The experiment was carried out to determine effects of potassium and phosphorus fertilizers on growth and yield of the soybean variety VNUAĐ2. The experiment was conducted in the spring season of 2021 and was a split-plot design with 3 replications. Potassium levels included 0, 60, 80 and 100 kg/ha and phosphorous levels were 0, 70, 90 and 110 kg/ha. The effects of different fertilizer rates were determined through growth and development characteristics (plant height, number of leaves, number of nodes, number of branches), leaf area index, number and weight of nodules, yield components and yie

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26

Yinghai, Li, and Tian Juncang. "Quality of Reclaimed Domestic Water Irrigated Peppers-NPK Couple Model Based on Optimized Combination Technique." Mobile Information Systems 2022 (July 11, 2022): 1–9. http://dx.doi.org/10.1155/2022/8414975.

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China has been utilizing wastewater to irrigate grain, cotton, and vegetable crops, as well as landscapes, for decades. Nowadays, about 1/3 of the reclaimed water is used for irrigation purposes in China. This study focuses on the coupling between the nitrogen (N), phosphorus (P), and potassium (K) content in the reclaimed domestic water irrigated peppers and capsaicin. A field experiment in the three-factor, five-level quadratic general revolving combination design was conducted for an in-depth analysis of the capsaicin content coupling model by testing the significance of the regression equa

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27

Chikishev, Dmitry Vladimirovich, Nikolay Vasilievich Abramov, Natalya Sergeevna Larina, and Sergey Vladimirovich Sherstobitov. "NPK dynamics with differential mineral fertilization in off-line mode." Agrarian Scientific Journal, no. 10 (November 17, 2021): 61–68. http://dx.doi.org/10.28983/asj.y2021i10pp61-68.

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The efficiency of mineral fertilizers depends upon various factors, one of which is fertilization method. In heterogeneous condition of fields of nutrient content, the benefits of variable rate fertilization will increase, cause as much fertilizer will be applied to each section of the field as is necessary specifically on this section to obtain the planned yield. Experimental results have revealed the following features: variable rate fertilizer of nitrogen to reduce the variability of the nitrate nitrogen content in the tillering phase of spring wheat to 36% relative to the content before so

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28

Latartsev, P. Yu, and O. I. Antonova. "FEATURES OF BASIC NUTRIENT CONSUMPTION BY LINSEED FLAXIN THE CONTEXT OF FERTILIZER APPLICATION." Vestnik Altajskogo gosudarstvennogo agrarnogo universiteta, no. 10 (2021): 32–37. http://dx.doi.org/10.53083/1996-4277-2021-204-10-32-37.

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The study of the content and removal of nitrogen, phosphorus and potassium by linseed flax plants of the oilseed variety Severniy showed that more nitrogen and phosphorus accumulated in seeds, and potassium -in straw. The average content levels in seeds were as follow-ing: N -4.79%, P2O5 -0.79%, K2O -1.05% as compared to respective levels in straw: 0.64%, 0.1% and 1.73%. When applying fertilizers, the content of all nutrients in the straw decreases, and in the seeds it mainly remains at the con-trol level. Due to the higher crop yields in all fertilized vari-ants, the removal of phosphorus and

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29

Ying-hai, Li. "Quality of Reclaimed Domestic Water Irrigated Peppers - NPK Coupling Model and Optimized Combination Solution." Journal of Agricultural Science and Agrotechnolog 1, no. 1 (2022): 1–12. http://dx.doi.org/10.56391/jasa.2022.1004.

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Focusing on the coupling between the NPK content in Reclaimed domestic water irrigated peppers and capsaicin, a field experiment in the three-factor, five-level quadratic general revolving combination design was conducted for an in-depth analysis of capsaicin content coupling model by testing the significance of regression equation and coefficient with regression equation. The test result shows that : (1) factors affecting the content of capsaicin are in order of nitrogen fertilizer application level (x1) > nitrogen fertilizer application level (x2) > potassium fertilizer application lev

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30

Reis, Aline Cristina de Souza, Tiago Roque Benetoli da Silva, Affonso Celso Gonçalves-Júnior, Deonir Secco, Charline Zaratim Alves, and Reginaldo Ferreira Santos. "Organic and Mineral Fertilizer on the Initial Development and Nutrition of Jatropha." Journal of Agricultural Science 10, no. 10 (2018): 274. http://dx.doi.org/10.5539/jas.v10n10p274.

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Jatropha (Jatropha curcas L.) is an herbaceous plant, perennial, belonging to the family of Euphorbiaceaes. Jatropha&rsquo;s extract is used for the harvest of fruits, high amount of nutrients and, if not properly fertilized, can lead to the impoverishment of the soil over the years of cultivation. Thus, in this present work, we have a concern with the importance of fertilization. The experiment was conducted under field conditions in the 2014/2015 agricultural year, in S&atilde;o Jorge do Patroc&iacute;nio, State of Parana, Brazil. The experiment was conducted in a randomized bloc

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31

Razanov, S., S. Tkachyk, and A. Razanova. "The intensity of heavy metals accumulation by the milk thistle leaf mass under its fertilization with the latest fertilizers." Agrobìologìâ, no. 2(161) (November 24, 2020): 160–67. http://dx.doi.org/10.33245/2310-9270-2020-161-2-160-167.

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The aim of the research is to study the intensity of heavy metals accumulation in milk thistle leaf mass under fertilization with the latest types of fertilizers and to assess the environmental safety of such raw materials. Two experiments were laid in the research: the effect of fertilizing milk thistle with organo-mineral fertilizer Growth-concentrate on the intensity heavy metals accumulation by its leaf mass; the effect of fertilizing milk thistle with chelated fertilizers Phosphorus-chelate and Potassium-chelate on the intensity on heavy metals accumulation by the leaf mass. The use of a

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32

Fan, Heling, Yanshu Zhang, Jingchen Li, et al. "Effects of Organic Fertilizer Supply on Soil Properties, Tomato Yield, and Fruit Quality: A Global Meta-Analysis." Sustainability 15, no. 3 (2023): 2556. http://dx.doi.org/10.3390/su15032556.

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The increased use of chemical fertilizer input in agricultural production and the promotion of sustainable agriculture encourage researchers around the globe to undertake experiments regarding application of organic fertilizers on tomato production. This study aims to amalgamate the comprehensive effects of organic fertilizer application compared with the pure application of chemical fertilizers (100% CF) on soil properties, tomato yield, and fruit quality through meta-analysis. It helps to provide a certain reference for the sustainable development of circular agriculture systems in tomato pl

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Zakarya, Irnis Azura, Nor Anis Nadhirah Md Nasir, Najiha Razali, Mahamad Hakimi Ibrahim, and Madalina Boboc. "Assessment of Water Quality and Nutrient Uptake of Azolla in Different Fertilizers." IOP Conference Series: Earth and Environmental Science 1216, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1755-1315/1216/1/012039.

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Abstract The improvement of water quality through aquatic plants’ nutrient uptake is one of the crucial elements in achieving a sustainable ecosystem. Water quality is affected by a variety of variables, including dissolved oxygen concentrations, nutrient overabundance, bacterial populations, salt content, and the number of suspended particles in the water. This experiment was performed to evaluate the biological and biochemical characteristics of azolla using various fertilizers (compost food waste, cow dung, liquid fertilizer, mushroom block fertilizer). It also examined the ability and effe

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Qadri, Ahmad, St Subaedah, and St Sabahannur. "RESPON PERTUMBUHAN DAN PRODUKSI TANAMAN JAGUNG MANIS (Zea mays saccharata) TERHADAP PEMBERIAN MIKORIZA DAN PUPUK NPK." AGrotekMAS Jurnal Indonesia: Jurnal Ilmu Peranian 5, no. 3 (2024): 339–48. https://doi.org/10.33096/agrotekmas.v5i3.646.

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This study aims to determine the effect of the interaction between the administration of mycorrhiza and sodium phosphorus potassium fertilizer on the growth and production of sweet corn. This research was carried out from May 2022 to August 2022 in Campagaya Village, Galesong District, Takalar Regency. This research was in the form of a split plot design consisting of a main plot and subplots. application of biological fertilizers consisting of two levels, namely: MO: Without mycorrhiza (control) M1 Mycorrhizal application 10 grams/plant. As subplots were fertilizing sodium phosphorus potassiu

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AL-Sheikh, Mohammad Ahmad, Omar Abdullah Abdulrazzak, and Taha Hammadi Al-Khalifa. "Effect of Adding Potassium and Organic Fertilizers on the Soil NPK Content and the Productivity of maize (Zea mays L.)." Kufa Journal for Agricultural Sciences 16, no. 3 (2024): 152–63. http://dx.doi.org/10.36077/kjas/2024/v16i3.15433.

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The integrated use of organic and mineral fertilizers is a practical and good way to preserve and sustain soil fertility, which results in increased availability of nutrients in the soil and their absorption by plants, thus increasing crop productivity. Due to the fixation of potassium in the soil, it is necessary to work to increase the vitality of agricultural soil by adding fertilizers. Organic potassium is an important means of increasing the availability of macro- and micro-nutrients. Current research was carried out in a private farm in Deir Ezzor province during the summer season of 202

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Halla Arshad Ali. "The usage of different fertilizer type in same soil character ization improvements in Tikrit." Tikrit Journal of Pure Science 20, no. 3 (2023): 5–11. http://dx.doi.org/10.25130/tjps.v20i3.1180.

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This study included the effected of using different types of organic fertilizer in some soil chemical characterization productivity of okra plant. The experiment were designed according (R.C.B.D), with three replicates by using fertilizers remnants of cows and poultry, sludge were used. Three levels(10,20,40) ton/hectare were used in comparison with different levels of mineral fertilizer (150+115+115), (230+230+300), (460+460+600) Kg/hectare .This treatment resulted in reduction of soil organic materials, which approached 2.53% as compared with organic fertilizers and increased, phosphorus and

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Amirov, B. M., K. K. Kulymbet, A. Т. Seytmenbetova, and О. S. Kurmanakyn. "Use of nitrogen, phosphorus and potassaium by melon plants at fertiling on irrigated saline sierozem in southern Kazakhstan." Pochvovedenie i agrokhimiya, no. 3 (October 15, 2023): 36–53. http://dx.doi.org/10.51886/1999-740x_2023_3_36.

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The use of mineral fertilizers is an important agronomic technique in the system of intensive agriculture. In 2021-2022, field experiments were conducted in the Maktaaral district of Turkestan province to assess the response of mid-season melon to different doses and ratios of nitrogen, phosphorus and potassium fertilizers. To model the effect of fertilizers and soil salinity on the indicators of yield and nutrient use by melon plants, the data by years were subjected to mathematical processing separately in order to build the most adequate regression models describing the dependence of the re

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Boring, Timothy, Kurt Thelen, James Board, et al. "Phosphorus and Potassium Fertilizer Application Strategies in Corn–Soybean Rotations." Agronomy 8, no. 9 (2018): 195. http://dx.doi.org/10.3390/agronomy8090195.

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To determine if current university fertilizer rate and timing recommendations pose a limitation to high-yield corn (Zea mays subsp. mays) and soybean (Glycine max) production, this study compared annual Phosphorous (P) and Potassium (K) fertilizer applications to biennial fertilizer applications, applied at 1× and 2× recommended rates in corn–soybean rotations located in Minnesota (MN), Iowa (IA), Michigan (MI), Arkansas (AR), and Louisiana (LA). At locations with either soil test P or K in the sub-optimal range, corn grain yield was significantly increased with fertilizer application at five

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Artemjev, A. А., and A. M. Guryanov. "Responsiveness of agricultural crops in field crop rotation to the application of different doses of mineral fertilizers." Agricultural Science Euro-North-East 26, no. 3 (2025): 628–38. https://doi.org/10.30766/2072-9081.2025.26.3.628-638.

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In 2017–2022 in the forest-steppe of the Euro-North-East part of the Russian Federation (the Republic of Mordovia) in a field crop rotation (spring barley with clover undersowing – first year clover – winter wheat – spring barley – sudan grass) on leached chernozem there was carried out the research to optimize the doses and ratio of NPK in fertilizers. In all years of research, nitrogen was the main element that determined the crop yield in the crop rotation. Its minimum inclusion in the fertilizer dose (N45) increased the total grain harvest units for crop rotation by 25.8 % compared to the

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Polovyi, V., L. Yashchenko, and H. Rovna. "Removal of nutrients by corn depending on fertilization and liming in Western Polissia." Agrobìologìâ, no. 2(167) (December 9, 2021): 116–23. http://dx.doi.org/10.33245/2310-9270-2021-167-2-116-123.

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The article presents the results of liming and fertilization inﬂuence on the content and removal of nitrogen, phosphorus and potassium by maize on sod-podzolic sandy soil of Western Polissia. It was determined that the content of the main nutrients varied within 1.63–1.90 and 0.77–0.86 % for nitrogen, 0.51–0.59 and 0.32–0.41 % for phosphorus, 0.31–0.45 and 1.24–1.32 % for potassium respectively in the main and by-products. The highest accumulation NPK data were noted in the variant with application a 1.0 dose by hydrolytic acidity (Ha) of dolomite ﬂour and N120P90K120 with addition of S40 and

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Fayrouz, Buojaylah* Ali Omar Basmah Abdulsalam. "Evaluation of Nitrogen, Phosphorus, and Potassium in Tomato (Solanum lycopersicum L.), Leaves Impacted by Two Different Fertilizer Sources." Alg J Med App Sci 6, no. 1 (2023): 74–80. https://doi.org/10.5281/zenodo.7671741.

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<strong>Background and aims.</strong> One of the most significant vegetable plants in the world is tomato. Tomato has been developed to increase productivity, nutrient status, and resistance to both biological and abiotic stress factors because of its significance as a food crop. High productivity and desired tomato fruit quality are influenced by nutrient management and fertilizer application. The study was aimed to investigate the use of organic and mineral fertilizer sources by determination of nitrogen, phosphorus, and potassium in tomato leaves to reduce adding high quantities of mineral

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Lubich, V., V. Nevlad та A. Martyniuk. "Spring triticale productivity at diﬀerent doses of nitrogen fertilizers". Agrobìologìâ, № 1(171) (24 червня 2022): 152–59. http://dx.doi.org/10.33245/2310-9270-2022-171-1-152-159.

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Mineral nutrition improvement contributed signifcantly to spring triticale grain yield. On average, during the two years of research, the use of 30–210 kg/ha of active ingredient of nitrogen fertilizers increased it to 6.50–8.36 t/ha or by 14–46 % compared to unfertilized plots (5.71 t/ha). The stability index of yield formation was high – 0.92–0.95. Weather conditions in research years were different. The precipitation level in April – June 2014 made 442.7 mm, and in 2015 – 87.5 mm. In 2014, the application of N30–210 signifcantly increased the grain yield – by 0.81–2.66 t/ha, and in 2015 – b

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Rauw, Wendy Mercedes, Michael Bela Teglas, Sudeep Chandra, and Matthew Lewis Forister. "Growth, Root Formation, and Nutrient Value of Triticale Plants Fertilized with Biosolids." Scientific World Journal 2012 (2012): 1–7. http://dx.doi.org/10.1100/2012/467052.

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Biosolids are utilized as nutrient rich fertilizer. Little material is available on benefits to forage crops resulting from fertilization with biosolids. This paper aimed to compare the effects of fertilization with biosolids versus commercial nitrogen fertilizer on growth, root formation, and nutrient value of triticale plants in a greenhouse experiment. Per treatment, five pots were seeded with five triticale seeds each. Treatments included a nonfertilized control, fertilization with 100, 200, 300, 400, and 500 ml biosolids per pot, and fertilization with a commercial nitrogen fertilizer at

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Nagare, H., T. Fujiwara, T. Inoue, et al. "Nutrient recovery from biomass cultivated as catch crop for removing accumulated fertilizer in farm soil." Water Science and Technology 66, no. 5 (2012): 1110–16. http://dx.doi.org/10.2166/wst.2012.291.

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As a result of long-term continuous use of fertilizers in farm land, a large amount of nutrients accumulate in the soil, increasing the risk of eutrophication or nitrate pollution of groundwater. For rehabilitating the farm soil and recovering nutrients such as nitrogen, phosphorus and potassium, a new system has been developed by our research group. This paper discusses the methodology of extracting nutrients from biomass in order to recover phosphorus and other nutrients in crystal form. Around 80% or higher extraction rates were achieved for phosphorus and potassium by soaking the powdered

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Faruk, Md Iqbal. "Effect of Soil and Foliar Application of Plant Nutrients on Purple Blotch and Tip-Burn of Garlic." Journal of Agronomy Research 4, no. 3 (2022): 39–49. http://dx.doi.org/10.14302/issn.2639-3166.jar-22-4114.

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An experiment was conducted in the field of Plant Pathology Division, BARI, Joydebpur to evaluate the efficacy of available plant nutrient for the development of purple blotch disease and tip-burn of onion. Eight different treatments viz. Potassium (MP fertilizer), Phosphorus (TSP fertilizer), Boron (Boron fertilizer), Zinc (ZnSO4 fertilizer), Calcium (CaSO4 fertilizer), Copper (CuSO4), Silicon (silica gel) and Manganese (MnSO4 fertilizer) were tested against purple blotch disease and tip-burn of garlic. The present study revealed that soil and foliar application of plant nutrients viz. Potass

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Kumbhare, Rahul, Amit Kumar Jha, Gopilal Anjana, Raghav Patel, and Yagini Tekam. "Combination of Fertilizer and Growth Regulators Impact on Nutrient Balance in Wheat Crop (Triticum aestivum L.)." International Journal of Plant & Soil Science 35, no. 22 (2023): 823–32. http://dx.doi.org/10.9734/ijpss/2023/v35i224193.

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A field experiment was conducted during the rabi season of 2020 at All India Coordinated Research Project (AICRP) on Wheat, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.) to evaluate nutrient balance under the optimization of fertilizer levels with plant growth regulators. The experiment was laid out in a randomized block design comprising nine treatment of different dose of fertilizer along with plant growth regulators namely chlormequat chloride and tebuconazole applied at the rates of 0.2% and 0.1%, respectively and replicated three times. The recommended dose of fertilizer, 120:

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Jesvica, Jesvica, Afrini Dona, Migusnawati Migusnawati, and Refika Komala. "Efektivitas Pengomposan Pupuk Organik dari Kotoran Kambing dan Jerami Padi Menggunakan Bioaktivator Orgadec." JURNAL AGROPLASMA 11, no. 1 (2024): 28–34. http://dx.doi.org/10.36987/agroplasma.v11i1.5568.

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Careless disposal of livestock manure can lead to environmental pollution, thereby impacting the deterioration of the quality of the environment, the quality of life of the rancher and his livestock and triggering social conflicts. So this needs to be addressed by making livestock waste as compost fertilizer. This study aims to determine whether organadec bioactivators are effective against composting manure from goat manure and rice straw. The study was conducted during a 21-day observation period of goat manure and rice straw so that it became compost fertilizer. This study used an experimen

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Gaevaya, Emma, Izida Ilyinskaya, Olga Bezuglova, and Ekaterina Nezhinskaya. "Changes in the phosphorus-potassium regime of ordinary chernozems in the long-term experience of the Rostov region." АгроЭкоИнфо 2, no. 50 (2022): 2. http://dx.doi.org/10.51419/202122202.

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The change in the content of mobile phosphorus and exchangeable potassium in calcic chernozem of the Rostov region has been studied. The use of chisel treatment on an erosion-hazardous slope reduced soil flushing by 12.6%. By the end of the first rotation of the grain-to-crop crop rotation, when using an extensive fertilizer application system, a decrease in the content of mobile phosphorus and exchangeable potassium was noted. Over the seven rotations of the crop rotation, this difference continued to increase. Systematic application of fertilizers in various doses allowed to increase the con

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Jama-Rodzeńska, Anna, Piotr Chohura, Bernard Gałka, Anna Szuba-Trznadel, Agnieszka Falkiewicz, and Monika Białkowska. "Effect of Different Doses of Phosgreen Fertilization on Chlorophyll, K, and Ca Content in Butterhead Lettuce (Lactuca sativa L.) Grown in Peat Substrate." Agriculture 12, no. 6 (2022): 788. http://dx.doi.org/10.3390/agriculture12060788.

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Struvite is regarded as a promising phosphorus (P) fertilizer compared to commercial pristine mineral phosphorus fertilizers. The aim of this study was to determine the effect of Phosgreen fertilizer, with struvite as its phosphorus source, on the chlorophyll, potassium (K), and calcium (Ca) contents in lettuce grown in peat compared to superphosphate. The study was carried out as a pot experiment with different doses of P fertilization. The study presents the chlorophyll a, b, total (a + b) chlorophyll, and carotenoid contents of the lettuce plants. Significant differences in the chlorophyll

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Najm, Sahar Hamza, and Hayyawi Wewa Attia Al-Juthery. "Nano-Fertilization of Phosphorous and Potassium, Spraying Sepehr 4 Nano-Fertilizer and Carbon Nanotubes on some Qualitative Traits and Active Substances in the Grains of Rice (Oryza sativa L.)." IOP Conference Series: Earth and Environmental Science 1259, no. 1 (2023): 012041. http://dx.doi.org/10.1088/1755-1315/1259/1/012041.

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Abstract The study aimed to investigate the response of rice crop (Oryza satival L.), local variety Anbar 33, to nano-phosphorus and nano-potassium, spraying with carbon nanotubes and synthetic nano fertilizer Sepehr 4 (K+Fe+Zn+Mn). Some indicators of rice grains traits were used to evaluate the response. The field experiment was conducted in Al-Taliaah district 41-Al-Husseiniyah in the southern pater of Babylon Governorate - Iraq. The experiment was carried out according to the Randomized Complete Blocks Design (RCBD), and the treatments were randomly distributed according to a straightforwar

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