Growth, yield attributes, yield and economics of hirsutum cotton as influenced by foliar application of KNO3

Abstract

A field experiment was conducted during Kharif season from 2009 to 2012 at Cotton improvement Project, MPKV, Rahuri (Maharashtra), India, to study the effect of foliar application of KNO3 on growth yield and economics in hirsutum cotton. Data indicate that application of KNO3 and MOP improved significantly all the growth and yield attributing characters over control. Four foliar sprays of 3% KNO3, produced significantly more seed cotton yield (36.28 kg/ha) than control by 20.5 percent. Significantly higher seed cotton yield (35.71 kg/ha) were also obtained with application of four foliar sprays of 2% KNO3 than control. Higher gross return (Rs.133596/ha) were recorded by application of Four foliar sprays of 3% KNO3, However, the higher net return (Rs.71431/ha) and B:C ratio (2.20 ) were achived with the application of Four foliar sprays of 3% KNO3.