Abstract
Potassium (K) uptake, uptake trend and apparent balances as influenced by integrated nutrient and crop residue management were investigated in a five-year field experiment on two calcareous soils, i.e., Awagat (coarse loamy) and Shahpur (fine silty) in cotton-wheat sequence. Total K uptake by cotton and wheat plants differed significantly due to nutrient management treatments, i.e., farmers’ fertilizer use (FFU); balanced nutrient management (BNM); integrated nutrient management (INM); and balanced nutrient management plus green manuring (BNM+GM). Minimum mean K uptake (kg ha−1) by cotton with FFU was 87.1 in Awaga and 108.1 in Shahpur. Corresponding maximum mean K uptake with INM was 115.1 and 132.2, respectively. Nutrient treatments effect on K uptake by wheat was similar to cotton. Potassium uptake was further enhanced by crop residue recycling. Potassium uptake by both crops exhibited non-significant trends and large negative apparent K balances were observed in both the soils.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
