Abstract
ABSTRACT The split application of P can increase the yield and P use efficiency of potato，however, there is currently a lack of a reliable method for determining the timing and rates for the split application of P fertilizers to optimize potato production. In this three-year field experiment, we tested the possibility of establishing a potato plant P diagnosis method with a reflectometer RQflex. Potato petiole Pi content was linearly correlated to plant P contents and was significantly sensitive to soil phosphorus supply, suggesting that petiole P content determined by a RQflex meter is a good indicator of potato plant P status. Moreover, the relationship between relative potato yield and petiole Pi content fits a linear platform equation, suggesting that RQflex meter may be useful for rapidly determining the threshold petiole P level. Our results will help in developing a viable method for recommending P-fertilizer application rates during potato growth to optimize potato tuber yields.
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.
