Abstract
Wooden frame experiments were conducted to study the effects of the application ratio of potassium to nitrogen on top growth, tuber-formation and-thickening of sweet potatoes. Four types of soil differing in their clay content were used. Two cuttings were planted in each frame.1. According to the increase of the application ratio of potassium to nitrogen, top growth was gradually weaken throughout the growing period in every type of soil, and also the percentage of parts of young vines decreased.2. Small application ratio of potassium to nitrogen was unfavourable to tuber-formation due to the vigorous vine growth during the period of tuber-formation, however, it was favourable to the increase of tuber yield, especially that of large tubers, as the vine growth was vigorous after tubers began to thicken.3. As the application ratio of potassium to nitrogen increased, the percentage of dry matter content of tubers in every type of soil gradually decreased.
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.
