Effectiveness of Gypsum and Pyrite for Sulfur Fertilization on Yield and Quality of Indian Mustard under Rainfed Conditions of North India
2008
Sharma, K.R. | Arora, Sanjay
Field trials were conducted for two consecutive years during the rabi season in sandy loam soils of Jammu (north India) under rainfed conditions to study the effect of gypsum and pyrite for sulfur (S) nutrition on the oil content, S uptake, and yield of Indian mustard. Application of S through gypsum or pyrite either in natural or ground form increased S content, uptake, oil content, and yield of mustard significantly over the control. Among the different treatments, S application at 50 kg S ha-1 of ground gypsum (GM2S2) recorded the significantly highest mean seed yield of 20.30 and 18.01 q ha-1, which lead to an increase of 30 and 29.8% in the first and second year, respectively, over the control. For the duration of the experiment, it was observed that 25 kg S ha-1 was the optimum dose, preferably of ground gypsum, for mustard crops under rainfed conditions.
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