​Effect of Organic and Inorganic Sources of Nutrients on Growth, Yield Attributes and Nutrient Uptake of Soybean in Vertisols of Rajasthan

Abstract

Background: Soybean [Glycie max (L.) Merril] is a very important oil seed and protein rich crop. It has the specific character to fix atmospheric nitrogen through root nodule bacteria in symbiotic relationship. A field experiment was conducted during kharif, 2019 at ARS farm, College of Agriculture, Ummedganj, Kota (Rajasthan). To find out the effect of organic and inorganic sources of nutrients on growth, yield attributes and nutrient uptake of soybean in Vertisols of Rajasthan. The soil of the experimental field comes under Vertisols with clay loam texture having low to medium fertility status and good porosity. Methods: The experiment consisted of 10 treatments viz. T0- Control (Absolute), T1- RDF (20-40-40), T2- 75% RDF + FYM (2.0 t ha-1), T3- 50% RDF + FYM (4.0 t ha-1), T4- 75% RDF + FYM (2.0 t ha-1) + Rhizobium, T5- 50% RDF + FYM (4.0 t ha-1) + Rhizobium, T6- 75% RDF + Vermicompost (1.0 t ha-1), T7- 50% RDF + Vermicompost (2.0 t ha-1), T8- 75% RDF + Vermicompost (1.0 t ha-1) + Rhizobium, T9- 50% RDF + Vermicompost (2.0 t ha-1) + Rhizobium. The experiment was laid out in randomised block design and was replicated thrice. Result: Among the nutrient management treatment, application of 75% RDF + Vermicompost (1.0 t ha-1) + Rhizobium (T8) resulted into maximum plant height (58.70 cm), branches plant-1 (5.60), chlorophyll content (2.84 mg g-1), total nodules per plant (47.40), effective nodules (31.59) and dry weight (84.20 mg), pods plant-1 (41.90), seeds pod-1 (3.47), grain yield (1380 kg ha-1), haulm yield (1885 kg ha-1), biological yield (3325 kg ha-1), protein (42.25%) and oil content (19.92%), N, P, K content and their uptake, with maximum gross return (53042.71 Rs ha-1), net return (28980.71 Rs ha-1) and B:C ratio (2.20) in soybean crop.

Response of Blackgram (Vigna mungo L.) to Different Management Practice under North Eastern Transition Zone of Karnataka

“…Hence there will be higher growth in package of practice treatments. The findings corroborate with those of Ghulam et al (2011), Meena (2013) and Singh and Singh (2017).…”

Zinc Biofortification and Nutrient Management Effect on Growth, Yield and Yield Efficiency Index of Garden Pea under Himalayan Conditions

“…On the other hand, nitrogen and phosphorus are essential constituents of proteins and chlorophyll, have important roles in plant metabolism. Their application, either through organic manure, fertilizer, or bio-fertilizer, co ntributes to the syn thesis of plant growth hormon es, ro ot system development and efficient nutrient utilization as shown by Meena and Sharma (2010). W hile, higher levels of nitrogen can delay the maturity of garden pea plants by prolonging canopy senescence, extending physiological activity and allowing for continued photosynthesis.…”

Effect of fertility levels and foliar nutrition in fieldpea (Pisum sativum) under south - eastern Rajasthan

“…The maximum and significantly higher N, P, K and S content and uptake in fieldpea seed and straw were observed under 125% RDF over 100 and 75% RDF. The increased availability of these nutrients in the root zone coupled with increased metabolic activity at cellular levels might have synthesized more nutrients and their accumulation in various plant parts (Yaseen et al, 2014;Meena et al, 2021;Yadav et al, 2016). The increased uptake of nitrogen, phosphorus and potassium content in seed and straw seems to be owing to the fact that, uptake of nutrient is a product of biomass and nutrient content.…”

“…The maximum and significantly higher N, K and S uptake of fieldpea seed and straw was recorded under foliar application of NPK (19 : 19 : 19) @ 0.5% over the other treatments; however, the higher P uptake of fieldpea seed and straw was observed in foliar application of NPK (17 : 44 : 0) @ 0.5% over the other treatments. It is evident from significant correlation between dry-matter accumulation and uptake of nutrients (Meena et al, 2021). A repeated application of small units of foliar fertilizers stimulates plant metabolism and increases nutrient content and uptake.…”