Effect of nano zinc oxide on growth, yield and uptake of nutrient by linseed

Abstract

The research was conducted to investigate the "Effect of nano zinc oxide on growth, yield and fertility status of soil after harvest of linseed" during rabi season 2019-20 at AICRP linseed Farm, College of Agriculture, Nagpur. The experiment was laid out in Randomized Block Design with 7 treatment replicated thrice. The maximum viz., Germination (88%), plant stand per plot (635), number of branches plant -1 (3.53), number of capsule plant -1 (66.87), seed yield kg ha -1 (1169), straw yield kg ha -1 (2660) and test weight (8.23 g) were found with seed treatment with nano ZnO 1000 ppm. Whereas, pH of soil (7.40), available N in soil (248.83), available K in soil (326.33) and available S in soil (13.83) were recorded higher with soil application of ZnSO4 @ 15 kg/ha + Foliar spray of nano ZnO @ 0.25% at 30 and 45 DAS, EC of soil (0.22) available Zn in soil (0.46) with respect to soil reaction and fertility of soil were recorded higher with seed treatment with nano ZnO 1000 ppm. Organic carbon content (5.9) and available P in soil were recorded higher with soil application of ZnSO4 @ 15 kg/ha + Foliar application of ZnSO4 @ 0.5% at 45 DAS.