Effect of cultivars and irrigation-fertigation regimes on growth and yield of subsurface drip irrigated sweet corn in sodic soil

Abstract

A field experiment was conducted to study the effect of cultivars and irrigation-fertigation regimes on subsurface drip irrigated sweet corn in sodic soil at Anbil Dharmalingam Agricultural College and Research Institute, Tiruchirapalli during kharif, 2018. The experiment was laid out in factorial randomized block design with three replications. The treatments consisted of combination of two factors viz., three cultivars (CSCH-14003, CSCH-15005 and Misthi) and four different irrigation-fertigation regimes (100% PE + 100% RDF, 100% PE + 125% RDF, 75% PE + 100% RDF and 75% PE + 125% RDF). The results revealed that plant height, dry matter production, cob length, cob girth, number of rows per cob, number of kernels row, test weight and eventually green cob yield were recorded significantly higher with misthi cultivar subsurface drip irrigation-fertigation regimes of 100% PE + 125% RDF. The study shows that sweet corn may be recommended has a new crop for the sodic soils of Trichy district. For higher productivity of sweet corn in this region, misthi combined with 100% PE + 125% RDF may be recommend under subsurface drip irrigation.