Vol. 8 No. 1
Effect of sulphur on growth and yield of green gram [Vigna radiata (L.) Wilczek]
Abstract: A field experiment was conducted to evaluate the effect of phospho-gypsum on green gram (Vigna radiata L) in Gangetic alluvial soil during two successive seasons. The experiment was laid out in RBD with six treatments and four replications. The results reveal that application of Phospho-gypsum at 30 kg S/ha with the recommended dose of N-P-K (T5) gives highest seed yield of green gram crop followed by T3 treatment where 30 kgS/ha automatically supplied by Single Super Phosphate with the recommended N-P-K dose and T4 treatment where Phospho-gypsum at 20 kgS/ha applied with the recommended dose of N-P-K in both the seasons. Seed yield obtained in treatments T5 and T3 significantly differ from T2 treatment where recommended fertilizer dose (N-P-K) applied without any sulphur. Crop growth characters like plant height and total dry matter production also showed similar results. Phospho-gypsum was found effective and may be used as an alternate source of S for increasing the yield of green gram crop. The dose of S 20-30 kg ha-1, may be optimum and better option for increasing the yield of green gram crop in an intensive cropping system where green gram is grown as a catch crop/soil restoring crop.
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