Effect of FYM, foliar feeding of nitrogen and deficit irrigation on drip irrigated coriander (Coriandrum sativum L.)

摘要

A field experiment was conducted to study the water use, nitrogen (N) uptake and economics of coriander (Coriandrum sativum L.) under organic enrichment, foliar feeding of N and fertigation. Drip irrigation at 80% ETc + foliar spray of 25% N (15 kg ha~(-1)) + fertigation (45 kg ha~(-1)) gave the highest plant height, branch plant~(-1), umbel plant~(-1), umbelets umbel~(-1), seed umbel~(-1), and test weight compared to irrigation at 80% ETc and at 60% ETc (upto flowering stage) + 80% ETc (reproductivestage) with or without foliar spray. Increased yield parameters were attributed to the highest seed yield and B:C ratio of 1.90 using 265.74 mm water. Water use efficiency (WUE) was also the highest. This treatment also recorded the highest N uptake of52.6 kg ha~(-1). Further, addition of 10 t ha~(-1) FYM in addition to recommended nitrogen dose (60 kg ha~(-1)) gave higher yield attributes viz., branch plant~(-1), umbel plant~(-1), seed umbel~(-1) and test weight as compared to recommended level of fertilizers. Enhanced yield attributes thus increased seed yield, N removal, WUE and B:C ratio.