Paper Details

A field experiment was carried out at Instructional Farm, Agronomy, Rajasthan College of Agriculture, Udaipur during rabi 2020-21. The experiment was arranged in split plot design having 12 treatment combinations replicated four times. The experiment having three levels of irrigation (one irrigation at seedling stage, two irrigations at seedling + pod formation stage and three irrigations at seedling+50% flowering+ pod formation stage) in main plots and four levels of zinc (control, 4 kg Zn ha-1, 8 kg Zn ha-1 and 12 kg Zn ha-1) in sub plots. The results revealed that three irrigations given at seedling, 50% flowering and pod formation stage significantly increased oil content, oil yield and protein yield, as compared to only one irrigation given at seedling stage. Whereas, treatments I2 (two irrigations at seedling and pod formation stage) and I3 (three irrigations at seedling, 50% flowering and pod formation stage) were remained statistically at par. Irrigation frequency had no any significant effect on protein content, nutrient (N, P, K and Zn) content in seed and stover of mustard crop. Maximum oil content, oil yield, protein content and protein yield were obtained with application of 12 kg Zn ha-1. Whereas, treatments Zn8 (8 kg Zn ha-1) and Zn12 (12 kg Zn ha-1) were remained at par. Nitrogen, potassium and zinc content and uptake by seed and stover of mustard increased significantly with application of 12 kg Zn ha-1 over control. Phosphorus content in seed and stover decreased with increasing levels of zinc.

Mustard, Irrigation, Zinc, oil content, protein content, nutrient content and uptake