Vol. 11, Issue 10 (2022)

Author(s):
Ganvit KJ, Patel VJ and Desai NB

Abstract:
A field experiment was carried out during summer season of year 2021 at College Agronomy Farm, B. A. College of Agriculture, Anand Agricultural University, Anand with view to study the “Influence of spacing and nutrient management practices on quality, soil fertility after harvest, nutrient content and their uptake in summer blackgram (Vigna mungo L. Heeper) under organic conditions”. The experiment consisted of twelve treatment combinations comprised of two different spacing viz., S₁: 30 × 10 cm and S₂: 45 × 10 cm related to main factor and nutrient management practices viz., N₁: 100% N through FYM + ST (5 ml/kg seed) of Rhizobium, N₂: 100% N through vermicompost + ST (5 ml/kg seed) of Rhizobium, N₃: 100% N through castor cake + ST (5 ml/kg seed) of Rhizobium, N₄: 75% N through FYM + ST of Rhizobium + SA of Bio NP 1 L/ha at first irrigation, N₅: 75% N through vermicompost + ST of Rhizobium + SA of Bio NP 1 L/ha at first irrigation and N₆: 75% N through castor cake + ST of Rhizobium + SA of Bio NP 1 L/ha at first irrigation allotted to sub factor and were tested under randomized block design with factorial concept and replicated thrice. Crop sown at spacing 45 × 10 cm (S₂) recorded numerically higher protein content, protein yield, N, P, K, S and Zn content in both seed and haulm of blackgram. While significantly higher N, P, K, S and Zn uptake by seed and haulm were recorded with crop sown at spacing 30 × 10 cm (S₁). Application of 100% N through castor cake + ST (5 ml/kg seed) of Rhizobium treatment recorded significantly higher protein yield, K content in seed and haulm, N, P, K, S and Zn uptake by seed, N, K and S uptake by haulm and S in soil after harvest of blackgram. While in case of N and P content in seed and haulm, P and Zn uptake by haulm were recorded significantly higher under application of 75% N through castor cake + ST of Rhizobium + SA of Bio NP 1 L/ha at first irrigation.