Studies on blackgram – Indian mustard cropping system under different rain water management practices in Jhararghat watershed

Abstract

An experiment was conduct during two consecutive year of 2015-2016 and 2016-2017 at Hillocks and Valley Watershed of Jhararghat, Lalitpur, situated in catchments area of river Betawa. The soil of watershed area was sandy loam locally known as Rakar, having pH 8.1, organic carbon 0.26%, total nitrogen 0.02%, available phosphorous 10.38 kg/ha and available potassium 227.00 kg/ha initially before starting of present experiment. The trail was conducted on farmers fields under blackgram-Indian mustard cropping system. There were four treatments comprised of conventional system, runoff recharge in stony dug wells, runoff harvesting at hill bottom in natural water impounding structure and runoff collection in constructed water storage structure. The treatments were evaluated on the basis of growth, yield attributes and yield of blackgram and growth yield traits and seed yield of Indian mustard. The blackgram variety Azad Urd-3 and Indian mustard cv. Varuna were sown with conservation agronomical practices. The highest seed yield of blackgram by 9.06 q/ha was reaped from runoff collection in constructed water storage structure of pilot area. The sowing of Indian mustard after blackgram in the same treatment(T4) gave highest seed yield by 24.87 q/ha. The growth and yield traits of both crops were concordant to the yields.