Water-soluble Fertilizer Research Articles

Effect of Fertigation of Water-Soluble Fertilizers on Growth, Yield of Cowpea and Nutrients Availability in Soil under Rice-cowpea Cropping Sequence

A investigation was carried out to study the Growth and yield of cowpea and primary nutrients availability in soil as influenced by fertigation of water-soluble fertilizers under rice-cowpea cropping sequence. Hybrid rice was tested under aerobic condition during Kharif 2015-16 and 2016-17 with 16 treatments replicated thrice in randomized block design. The results indicated that, the treatment, 100% RDF through water soluble fertilizer at 8 DI was recorded significantly higher growth and yield determinants, higher seed yield (12.94 q ha-1) and haulm yield (26.17 q ha-1) of cowpea. Significant higher organic carbon (0.57 %) was recorded with the application 100% STCR dose with WSF through fertigation at 8 DI and higher available N (146.38 kg N ha-1 ), P2O5 (122.67 kg P2O5 ha-1 ) and K2O (130.17 kg K2O ha-1 ) content in soil recorded 100% water soluble fertilizers (WSF) applied at 4 DI. However, exchangeable calcium [3.51 cmol (p+) kg-1], magnesium [2.55 cmol (p+) kg-1], available sulphur [12.50 ppm] in soil were recorded with 100% conventional fertilizers applied plots through PoP. Significantly higher DTPA extractable Fe (18.45 mg kg-1) noticed with 100% STCR of WSF at 8 DI. However, significantly higher DTPA extractable Zn (1.44 mg kg-1) and Cu (0.57 mg kg-1) was recorded with the application of 100% RDF with WSF at 4 DI. Significantly higher DTPA extractable Mn (22.78 mg kg-1) noticed with 100% STCR of WSF at 4 DI.

Productivity, quality and suitability for processing of various potato varieties when grown in the conditions of the Central region of the Russian Federation

Relevance. The study of the reaction of potato varieties, especially new ones, to the use of a complex of agrotechnical techniques, including foliar top dressing with water-soluble fertilizers, is an urgent task. For this purpose, 4 potato varieties of different ripeness groups (Red Scarlett, Nevsky, Golubizna, Grand) were studied in two regions of Russia using agrochemicals Agrovin Micro. Methods. The article presents experimental data on the study of biometric indicators, yield and quality of potatoes for non-root top dressing in conditions of leached chernozem and sod-podzolic sandy loam soils of the Central region of Russia. The objects of research were potato varieties of various ripeness groups. Foliar fertilization of plants with agrochemicals Agrovin Micro was carried out in the phases of germination, budding and 20 days after the last treatment in two consumption rates – 1.0 and 2.0 l / ha. Control – without processing (K) with background N90Р90К135.Results. On average, over the years of research, the best options for all varieties turned out to be options with the use of additional leaf treatment with an agrochemical at a maximum dose of 2 liters /ha. Due to three-fold foliar top dressing for the critical phases of potato plant growth, the greatest yield increases and maximum values of dry matter and starch content to the mineral background were obtained. In the conditions of the Tambov region, the increase in yield, depending on the variety, ranged from 24.2 to 59.3% or 6.0-10.5 /ha and in the conditions of the Moscow region – 3.3-28.9% or 1.2-7.1 t/ha. The most suitable for processing into fried potato products from the studied varieties turned out to be Red Scarlett and Grand. All other things being equal, the color index of crispy potatoes and fries on these varieties was higher than the Nevsky variety by 1.0-1.5 points.

Residual Effect of Water Soluble Fertilizers on Productivity and Nutrients Uptake of Cowpea in Aerobic Rice-cowpea Cropping Sequence under Fertigaton

A field experiment was under taken at University of Agricultural Sciences, GKVK, Bengaluru, Karnataka state, India to study the residual effect of fertigation of water soluble fertilizers on productivity and nutrients uptake of cowpea under aerobic rice-cowpea cropping sequence during Kharif 2015-16 and 2016-17 with 16 treatments replicated thrice in randomized block design. Significantly higher plant height (58.47 cm), number of branches plant-1 (11.71) and total dry matter accumulation plant-1 (70.60 g) were recorded in fertigation with 100% RDF through water soluble fertilizer at 8 DI. Likely, similar treatment 100% RDF through water soluble fertilizer at 8 DI was recorded significantly higher number of pods plant-1 (16.58), pod length (16.67 cm), seeds per pod (16.10), test weight (11.93 g), seed yield (12.94 q ha-1) and haulm yield (26.17 q ha-1). While higher total uptake of N, P and K by cowpea (68.94, 14.67 and 61.39 kg N, P and K ha-1, respectively) was recorded in 100% RDF through water soluble fertilizers at 4 DI (T5) than all other treatments. 100% RDF through WSF at 8 DI (T8) was recorded notably higher total Ca, Mg and S uptake by cowpea (50.71, 24.71 and 12.09 kg Ca, Mg and S ha-1, respectively). Significantly higher uptake of total Fe, Zn and Cu by cowpea crop (680.23, 91.30 and 38.27 g ha-1, respectively) was recorded with 100% RDF through water soluble fertilizers at 8 DI (T8). Total uptake of Mn was recorded higher by cowpea was observed (181.67 g ha-1) in 100% STCR dose through water soluble fertilizers at 4 DI (T11).

Effect of foliar application of water soluble fertilizer, sulphur, zinc and boron on growth, yield and economics of garlic (Allium sativum L.) in a vertisol

Effect of foliar application of water soluble fertilizer, sulphur, zinc and boron on growth, yield and economics of garlic (Allium sativum L.) in a vertisol

Effect of foliar application of water-soluble fertilizers on yield and economics of soybean

Effect of foliar application of water-soluble fertilizers on yield and economics of soybean

Multi-nutrient and humic acid foliar applications enhance green gram growth and yield on alkaline soil by increasing nutrient use and physiological activity

Widespread multi-nutrient deficiency and water stress are the major yield-limiting factors in alkaline soil. Inorganic nutrient application in alkaline soil is ineffective for green gram due to the antagonistic interaction with alkalinity. In this setting, a balanced supply of foliar nutrients is a viable strategy to improve green gram nutrient utility and productivity in an alkaline environment. Field experiments were conducted for two consecutive years during Rabi 2019 and 2020. Water-soluble NPK (2%), 1% multi-micronutrient and 1% humic acid foliar nutrients in five combinations were applied at 30 and 45 days after sowing. The effect of multi-nutrient and humic acid foliar spray on green gram growth, physiology, nutrient accumulation, and yield were measured by adopting the standard protocol. Green gram seed yield increased by 20 per cent on the application of water soluble fertilizers 2% and liquid multi-micronutrients 1% with 1% humic acid. The same set of treatments augmented leaf area (428 cm2 plant−1), dry matter production (2087 kg ha−1), SPAD value (46.4), nitrogen (36.6 kg ha−1), phosphorous (4.9 kg ha−1), potassium (46.5 kg ha−1), and micronutrients uptake. Foliar application of multi-nutrients reduces nutrient stress and aids in the promotion of green gram crop growth and production in alkaline soil.

Effect of foliar application water soluble fertilizers on yield and economics of chickpea

Effect of foliar application water soluble fertilizers on yield and economics of chickpea

Effect of water soluble fertilizers on growth and yield of chickpea

Effect of water soluble fertilizers on growth and yield of chickpea

Optimization of Foliar Nutrition and Nipping for Quality of Pigeonpea [Cajanus cajan (L). Millsp.

A field experiment was conducted in red sandy clay loam soil at UAS, GKVK, Bengaluru during kharif to know the influence of foliar nutrition and nipping on crop growth, seed yield and quality in pigeonpea. The experiment replicated six times in split plot design with treatments of foliar spray of water soluble fertilizer (WSF)with three different concentration F0 (100% RDF), F1 (75% RDF + 25% WSF (19: 19:19), F2 (75% RDF + 12.5% WSF (19: 19:19) in combination with nipping (N1) and no nipping (N0). The results revealed that seed quality parameters viz.,germination (85.75 %) mean seedling length (48.28 cm), mean seedling dry weight (47.33 mg), seedling vigour index-I (4137), seedling vigour index -II (4112), lower electrical conductivity (1.07 mS ppt-1), total dehydrogenase activity (3.30 A480nm) and total soluble protein (23.19%) recorded higher in F2N1 (75% RDF + 12.5% WSF (19: 19:19) + nipping) over control (81.42%, 44.59 cm, 41.67 mg seedling-1, 3724, 3346, 1.44 mS ppt-1, 2.22 A480nm, 20.22 %,) respectively.

Evaluation of hydrochar-derived modifier and water-soluble fertilizer on saline soil improvement and pasture growth

Soil salinization poses a serious threat to crop growth. The selection of appropriate soil modifiers and water-soluble fertilizers for saline soils represents a crucial method for enhancing crop yields. The modifiers and medium-element water-soluble fertilizers were prepared using hydrochar derived from rice straw. Two distinct experiments were designed to study the effect of modifiers and water-soluble fertilizers on saline soils. The first experiment, designated as the “Soil Cultivation Experiment” , sought to investigate the impact of various modifiers on soil quality. The second experiment, designated as the “Method of Field Micro-Area Experiment”, aimed to assess the influence of water-soluble fertilizers on saline soils. The results showed that the application of modifiers and water-soluble fertilizers significantly enhanced comprehensive soil physical and chemical properties, crop growth, soil enzyme activity, and other key indicators in saline and alkaline soils. The optimal dosage of the modifier was 20 g/kg, which reduced the pH value from 8.62 to 8.21 and the decreased alkalinity by 8.26%. Furthermore, their application effectively boosted nutrient levels, including organic matter, and increased soil enzyme activity. The biomass of alfalfa showed enhancements of 63.01% and 20.87% and the biomass of leymus chinensis increased by 29.39% and 9.02% for the two batches, respectively. Notably, the application of water-soluble fertilizer yielded achieved superior results. This study also provided a theoretical basis for their future application in soda saline–alkali soil.

Influence of fertigation on soil-plant nutrition and crop productivity of shade grown Robusta coffee (Coffea canephora) in India

Coffee in Western Ghats grown under shade, soils are enriched with all the nutrients except phosphorus. The areas receive high rainfall, which leads to leaching loss and surface runoff of applied nutrients causing low fertilizer use efficiency. Improved agronomic practices are essential to address these issues. Fertigation is one such practice, having the potential to reduce extra chemical load by improving nutrient use efficiency. Hence, an attempt was made to study the impact of long-term fertigation on soil-plant nutrition and productivity of Robusta coffee. The trial was laid out in randomized complete block design (RCBD) with six treatments and four replications. Data on yield parameters and coffee yield indicated that significantly higher total number of nodes/branches, number of bearing nodes/branches, number of fruits/branches and coffee yield (49.1, 35.0, 758, and 2117 kg ha−1, respectively) were recorded in fertigation block supplied with 100% recommended dose of fertilizer (RDF) as water soluble fertilizer (WSF) which were statistically on par with 75% RDF (44.1, 29.4, 679, and 1821 kg ha−1, respectively). Similarly, higher major, secondary, and micro-nutrient content were noticed in leaf with fertigation at 75 and 100% RDF and also it was observed that, leaf Nitrogen (N), Phosphorus (P), and Potassium (K) content played a highly significant role in increasing coffee yield. The study results revealed that the quantum of N, P, and K fertilizer requirement could be brought down to the tune of 25% through fertigation as compared to the conventional soil application.

Изучение влияния водорастворимых удобрений на количественный выход и фракционный состав мини-клубней картофеля сортов Ариэль и Садон в условиях защищенного грунта

In closed ground conditions, at the stage of obtaining mini-tubers, to increase the average weight of the tuber and, as a result, increase the yield of tubers of a larger fraction, it is advisable to use root and non-root top dressing with water-soluble fertilizers Aquarin 13 and Monokalium phosphate. Keywords: POTATO MINI-TUBERS, ARIEL AND SADON VARIETIES, WATER-SOLUBLE FERTILIZERS

Holistic palak cultivation: standardizing media, nutrients in vertical A-frames for extended shelf life efficiency

The cultivation of green leafy vegetables is crucial for improving our nation’s nutritional security. Challenges like limited arable land and excessive fertilizer use have become significant concerns on cultivating in open field. To address these issues, vertical farming technology, with a focus on space optimization and hydroponic integration to manage fertilizer use, is gaining attention. This experiment aims to determine the best growing media and nutrient solutions for palak in an A-framed vertical unit. Three growing media were tested: coir pith (M0), Rockwool (M1), and a 1:1 mix of coir pith and vermiculite (M2). Various combinations of water-soluble fertilizers [Ca (NO3)2, MAP, and SOP] were used for each crop’s nutrient recipe preparation. Optimal yields were achieved when palak were grown in a coir pith and vermiculite mix with nutrient concentrations of 60:50:60 ppm. Despite high yields, green leafy vegetables face rapid spoilage and storage challenges. The study examined factors affecting post-harvest quality, including storage conditions (ambient at 35 ± 5°C, refrigerated at 5 ± 5°C), packing substrates (low-density polyethylene, high-density polyethylene covers), and gas compositions with modified atmosphere packaging. Results showed that refrigerated storage with low-density polyethylene packing and a gas composition of 6% O2, 5% CO2, and 89% N2 (G2) resulted in the least deterioration in physiological attributes and overall visual quality. This study highlights the potential of vertical farming technology, precise nutrient management, and advanced post-harvest techniques for sustainable production and preservation of green leafy vegetables to meet our nation’s nutritional security needs.

Effect of Water-Soluble Fertilizers and Plant Growth Promoting Rhizomicrobial Consortia on Nutrient Content, Uptake and Soil Chemical Properties in Blackgram

Effect of Water-Soluble Fertilizers and Plant Growth Promoting Rhizomicrobial Consortia on Nutrient Content, Uptake and Soil Chemical Properties in Blackgram

Recent Advances in Resource Utilization of Huangshui from Baijiu Production

Huangshui is a typical organic wastewater in Chinese Baijiu production, with high pollution and valuable ingredients. Conventional wastewater treatment leads to resource-wasting and environmental pollution. It is urgent that the demand for effective Huangshui treatment with the development of the Baijiu-making industry. This review systematically summarizes recent studies, revealing the main characteristics and application of Huangshui, focusing on the application of the rich microbial resources and flavor substances, which provides a practical approach to cascade and full use of Huangshui in medicine, cosmetic, functional food, fertilizer, and wastewater treatment fields. Further research suggested that Huangshui can also be used as an external carbon source for the denitrification system or as an organic liquid water-soluble fertilizer for more fruits and grains. The applications favor improving production efficiency and lowering pollutant emissions and introduce novel concepts for the sustainable development of related industries. Thus, Chinese Baijiu plants can achieve the near-zero emissions of wastewater and cleaner production.

Performance of Blackgram as Influenced by Water Soluble Fertilizers and PGPR under Rainfed Situation

Lower production potential of blackgram grown under rainfed situation due to lack of proper nutrition during critical crop growth stages. So, investigation was carried out with an objective to study the effect of water-soluble fertilizers and PGPR on performance of blackgram during Kharif-2019, a field study was carried out at University of Agricultural and Horticultural Sciences, Shivamogga which comes under Southern Transition Zone of Karnataka. Experimental design was laid out in randomized complete block design with thirteen treatments and replicated thrice. Treatments include combination of 19:19:19, monopotassium phosphate @ different dosage foliar spray with and without PGPR treatment along with package of practices. Water soluble fertilizers viz., 19:19:19 (N: P: K) and mono potassium phosphate (0:52:34) were used in treatment combinations along with PGPR. The Results revealed that, foliar application of 19:19:19 and mono potassium phosphate @ 1 per cent each at 30 and 45 days after sowing + PGPR along with a package of practice recorded significantly higher plant height, number of branches per plant, leaf and stem dry weight, crude protein (26.54 %), seed yield (1167 kg ha-1) and haulm yield (2019 kg ha-1) over package of practice treatment and also positive correlation was found between growth and yield parameters with seed yield and haulm yield.

Efficiency of the main application of fertilizers and top dressing of eggplant under drip irrigation on ordinary chernozems of the Rostov region

Relevance. Fertigation is the application of fertilizers, in which nutrients are dissolved in water for irrigation. This method is relevant when growing eggplant in the Rostov region, allowing effective use of fertilizers, since nutrients enter directly into the roots of plants, which eliminates their loss to evaporation or weathering. During fertigation, there is no need to carry out separate procedures for fertilization and irrigation, operations are combined into one, which reduces time and costs. The Rostov region is characterized by variable climatic conditions, including drought and strong winds. Fertigation ensures uniform and constant nutrition of plants, allowing them to better adapt to weather conditions, and can help increase yields by optimizing plant growth and development conditions.Material and methodology. In the conditions of the Rostov region, on ordinary heavy loamy chernozems, studies were conducted on the cultivation of eggplant on different backgrounds of the main application of mineral fertilizers in calculated doses before planting and using root fertilizing with complex fertilizers with trace elements with irrigation (fertigation), as well as leaf fertilizing with organomineral fertilizer Arksoil during the growing season.Results. It was revealed that mineral fertilizers and top dressing accelerated the growth and development of plants, and in the best case, the increase in indicators was 2 times higher compared with the control, while the height of the main stem, the number of lateral shoots and the number of ovaries on the plant, as well as the average weight of the fruit, significantly increased, which ensured an increase in plant productivity. The combined use of basic fertilizer and complex soluble fertilizers in the drip irrigation system has significantly increased plant productivity and increased yields to 77.82 t/ha. The application of high doses of fertilizers in combination with fertigation with water-soluble fertilizers did not actually affect the quality of fruits. The content of dry matter and nitrates remained at an optimal level.

Effect of Different Levels of Foliar Spray of Water Soluble Fertilizer NPK on Growth, Yield and Quality of Prickly Lettuce

A trial was conducted to evaluate the foliar application of fertilizer on growth, yield & quality of prickly lettuce at Vegetable Research farm, Department of Horticulture, SHUATS. The objectives of this study were to find out suitable combination of water- soluble fertilizer of nitrogen, potassium and phosphorus for growth, yield and quality of prickly lettuce and to estimate the economics of the various treatments. The experiment was laid out in randomized block design (R.B.D) with 3 replications and 8 treatments. Results revealed that treatment T4 performed best in terms of growth parameters viz; plant height, leaf area , number of leaves per plant, plant spread, leaf area , yield parameters viz; yield per plant, yield per hectare and quality parameters viz; TSS and ascorbic acid.

Adsorption of Cadmium and Lead Capacity and Environmental Stability of Magnesium-Modified High-Sulfur Hydrochar: Greenly Utilizing Chicken Feather.

Chicken feathers represent a viable material for producing biochar adsorbents. Traditional slow pyrolysis methods often result in sulfur element losses from chicken feathers, whereas hydrothermal reactions generate substantial amounts of nutrient-rich hydrothermal liquor. Magnesium-modified high-sulfur hydrochar MWF was synthesized through magnesium modification, achieving a S content of 3.68%. The maximum equilibrium adsorption amounts of MWF for Cd2+ and Pb2+ were 25.12 mg·g-1 and 70.41 mg·g-1, respectively, representing 4.00 times and 2.75 times of WF. Magnesium modification elevated the sulfur content, pH, ash content, and electronegativity of MWF. The primary mechanisms behind MWF's adsorption of Cd2+ and Pb2+ involve magnesium ion exchange and complexation with C=O/O=C-O, quaternary N, and S functional groups. MWF maintains robust stability and antioxidative properties, even with low aromaticity levels. Given the lower energy consumption during hydrochar production, MWF offers notable carbon sequestration benefits. The hydrothermal solution derived from MWF is nutrient-rich. Following supplementation with inorganic fertilizer, the hydrothermal solution of MWF significantly enhanced bok choy growth compared to the control group. In general, adopting magnesium-modified hydrothermal reactions to produce hydrochar and converting the resultant hydrothermal solution into water-soluble fertilizer proves a viable strategy for the eco-friendly utilization of chicken feathers. This approach carries substantial value for heavy metal remediation and agricultural practices.

Fertilizer Reduction Techniques on Growth and Yield of Cabbage (Brassica oleracea var capitata L.)

An investigation was carried out to find out the effect of reduction in RDF through foliar application of water-soluble fertilizers on the growth and yield of cabbage. The result showed that the growth and yield parameters significantly varied with a reduction in RDF through foliar application of water-soluble fertilizers at different concentrations. The maximum plant height (15.83 cm), number of loose leaves (15.85), leaf length of outer leaf (22.46 cm), leaf breadth of the outer leaf (22.48 cm), leaf area (504.90 cm2), and weight of loose leaves per plant (549.98 g) and yield parameters like maximum weight of head (0.96 kg), fresh weight of five heads (4.80 kg), head diameter (15.78 cm), yield per plot (33.54 kg ), total yield (54.09 tha-1) and highest marketable yield (53.26 tha-1) were recorded superior in the treatment T9 (66 % RDF + 2.5 % F A) in all growth and yield parameters with foliar sprays of water-soluble formulation NPK 19:19:19 sprayed at 3 times compared to check treatment T13 (100 RDF% alone) and all these parameters are minimum in T1 (33 % RDF + 2.5% FA).