Effect of Integrated Phosphorus Management on Yield, Nutrient Uptake of Soybean Grown on ‘P’ Deficient Soil

Abstract

The field experiment was conducted during Kharif 2017 at Post Graduate Research Farm, College of Agriculture Kolhapur with the view to study the effect of integrated phosphorus management for yield, nutrient uptake of soybean grown on "P" deficient soil. The soil of experimental site was slightly alkaline in reaction, low in available nitrogen, low in available phosphorus and very high in available potassium. The field experiment was carried out in randomized block design with three replications and seven treatments viz. absolute control (T 1 ), General recommended dose of fertilizer (T 2 ), 100 % P 2 O 5 through PMC (T 3 ), 100 % P 2 O 5 through DAP (T 4 ), 25 % P 2 O 5 through PMC + 75 % P 2 O 5 through DAP (T 5 ), 50 % P 2 O 5 through PMC + 50 % P 2 O 5 through DAP (T 6 ), 75 % P 2 O 5 through PMC + 25 % P 2 O 5 through DAP (T 7 ). The result indicated that the application of 25 % P 2 O 5 through PMC + 75 % P 2 O 5 through DAP (T 5 ) recorded significantly higher plant height, number of branches per plant, number of grains per plant, number of pods per plant, yield, nutrient uptake and quality of soybean.

Response of Phosphorus, Sulphur and Foliar Spray of GA3 on Nutrient Content and Uptake of Soybean [Glycine max (L.) Merrill]

“…The maximum nitrogen content, phosphorus content, potash content as well as sulphur content were recorded in seed and straw of soybean. Similar results obtained were corroborating with those reported by Devi et al (2012) and Dhage et al (2014). Results showed that the maximum uptake of nitrogen, phosphorus, potassium and sulphur by seed, straw and total of soybean crop were recorded with application of 60 kg phosphorus ha -1 over rest of treatments similar findings was reported by Thakur et al (2009).…”

Productivity, Profitability and Quality of Soybean [Glycine max (L.) Merrill] Influenced by Phosphorus and Sulphur Fertilization

“…Application of 60 kg P 2 O 5 ha -1 showed mark improvement in seed yield and thus gaining more profit in terms of net returns and benefit: cost ratio. The findings are in agreement with that of similarly, the monetary gains in terms of gross return and net return increased consistently and significantly with varying levels of phosphorus (Dhage et al, 2014). The computation of cost of cultivation is important because it decides the option for the farmers to choose the production practices, according to their investment capacity.…”