Best management practice of potassium for sunflower (Helianthus annuus, L.) in Northwest China

The objectives of the project are to: 1)To determine the critical level of soil K for sunflower production; 2)To study the influence of K source and time of application on sunflower seed yield and quality as well as their interactions with different water regime;3)To establish 4R potassium management practices in sunflower production.


Tianwen Guo, Gansu Academy of Agricultural Sciences
Institute of Dryland Agriculture
Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences. No.1 Nong ke New Village, Anning District, Lanzhou, China , 730070