Vol. 10 No. 2
Productivity and nutrient uptake of summer groundnut (Arachis hypogaea L.) towards different levels of irrigation and sulphur
Author(s): U. Giri, Md. Hedayetullah, A. Saha, m. K. Nanda and p. Bandyopadhyay
Abstract: A field experiment was conducted to study the effect of levels of irrigation and sulphur on nutrient uptake (N, P, K and S) from sandy-loam soil, residual soil nutrient status, consumptive water use (CU), water use efficiency (WUE), yield attributes as well as yield of summer groundnut during two consecutive years of 2009 and 2010 at the University research farm, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia, West Bengal. The experiment composed of 24 treatment combinations (8 irrigation considered as main plot and 3 level of sulphur as sub-plot) in a split plot design replicated thrice. The study revealed that both irrigation and sulphur levels significantly influenced yield attributing characteristics, the pod yield (t ha-1) and nutrient uptake from the soil. Highest values were exhibited when sulphur received the crop @ 15 kg ha-1 (S ). The highest CU (639.04 mm), and WUE (6.16 kg ha-1 mm-1) were recorded under three irrigations applied at flowering, pegging and pod filling stage (I ) followed by two irrigations at pegging and pod filling stage (I7), respectively. The residual soil fertility status (N, P, K and S) was not significantly influenced by irrigation as well as sulphur levels except the residual sulphur status of the soil. The maximum S status of the soil was recorded under no irrigation condition (I ) combined with sulphur applied @ 30 kg ha-1 (S ), three irrigations applied at flowering, pegging and pod filling stage (I ) combined with sulphur applied @ 0 kg ha-1 (S ) was recorded the minimum S fertility status of the soil.....
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