Efficacy of nano-minerals for productivity and economics of capsicum under naturally ventilated polyhouse
摘要
Nano-fertilizers can potentially reduce the fertilizer demand in commercial vegetable production and improve harvest quality. An experiment was carried out in a randomized block design with two factors viz., nano-minerals (nano iron, nano zinc, and nano magnesium) and micronutrients (Cu, B, and Mn), each at three levels. The observations were taken on various growth, flowering, fruiting, and yield-related parameters which were statistically analyzed in two-way analysis. The combined application of N1M2 (nano-Zn and borax at 1000 ppm each), N1M1 (nano-Zn and CuSO4 at 1000 ppm each), and N2M2 (nano-Fe and borax at 1000 ppm each) were reported as the most effective approach for improvement in plant growth and productivity in capsicum. These treatments ensured the maximum gross return, net return, and benefit/cost (B:C) ratio as N1M2 (Rs. 14,47,500; Rs. 10,31,745; and 2.48, respectively) followed by N1M1 (Rs. 13,12,500; Rs. 8,96,480; and 2.15, respectively) and N2M2 (Rs. 12,22,500; Rs. 8,04,585; and 1.93, respectively).