Đang chuẩn bị liên kết để tải về tài liệu:
Nutrient availability in bt. cotton under drip fertigation

Cotton occupies sizeable area in India including Maharashtra which is progressively increasing with creation of irrigation amenities. Farmers adopting furrow irrigation causes percolation, nutrient leaching and volatilization at one end and unproductive loss of ground or surface water on the other end. Therefore, experiments were conducted during Kharif season of 2015-2016 to evaluate nutrient availability in Bt cotton by using drip fertigation under different phosphorous sources. | Int.J.Curr.Microbiol.App.Sci 2018 7 4 3373-3379 EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 7 Number 04 2018 Journal homepage http www.ijcmas.com Original Research Article https doi.org 10.20546 ijcmas.2018.704.381 Nutrient Availability in Bt. Cotton under Drip Fertigation Jana Harish D.D. Pawar K.D. Kale R.R. Hasure and S.K. Dingre Department of Irrigation Water Management Mahatma Phule Krishi Vidyapeeth Rahuri-413722 Maharashtra India Corresponding author ABSTRACT Keywords Drip fertigation Nutrient Cotton Article Info Accepted 26 February 2018 Available Online 10 April 2018 Cotton occupies sizeable area in India including Maharashtra which is progressively increasing with creation of irrigation amenities. Farmers adopting furrow irrigation causes percolation nutrient leaching and volatilization at one end and unproductive loss of ground or surface water on the other end. Therefore experiments were conducted during Kharif season of 2015-2016 to evaluate nutrient availability in Bt cotton by using drip fertigation under different phosphorous sources. The experiment consisted of eight treatments and replicated thrice. Application of 100 24 24 00 fertigation through drip T1 was significantly superior over soil application under surface irrigation and registered the maximum availability of N P and K 241.11 37.03 and 608.81 Kg ha-1 at 90DAS gradually it was decreasing at harvest stage and it consists 169.31 19.97 and 459.81 Kg N P and K ha-1. While comparing with surface irrigation treatment T8 5.4 24.8 and 8.9 more availability of NPK in application of 100 fertilizer treatment T1 at 90 DAS gradually it was decreasing because of fertigation was adopted up to 14 weekly splits. Introduction Cotton enjoys a predominant position among all cash crops in India. Cotton is an important raw material for the Indian textile industry constituting about 65 of its requirements. The Indian textile industry occupies a .