›› 2013, Vol. 25 ›› Issue (2): 0-327.

• 论文 •    

Effects of potassium application amount on yield and quality of cauliflower

JIANG Zong-qing;CAI Zhi-ling;XIE Ji-xian;SHI Jin-min;LI Xiang-qian;SHI Jyu-qin   

  1. 1 Department of Botanical Garden Science and Technology, Jiangsu Animal Husbandry and Veterinary College, Taizhou 225300, China; 2Agricultural Technology Extension Station of Gaogang, Taizhou 225321, China;3Agricultural Science Research Institute of Taixing, Taizhou 225433, China;4Agricultural Technology Extension Station of Huzhuang Town, Taizhou 225321, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-03-25 Published:2013-03-25

Abstract: Experiments with different potassium application amounts were carried out on cauliflower to investigate the optimal potassium application amount for cauliflower with high yield and quality in local sandy soil area. The results showed that there was significant difference in yield and quality of cauliflower in different potassium application treatments. The yield and quality of cauliflower significantly increased when applied with potassium; however, the contents of nitrate and nitrite markedly increased and the nutrition elements such as Vc, Zn, Fe and Ca decreased, which caused the yield reduction and poor quality. In the local sandy soil area, the suitable potassium application amount of cauliflower was about 420 kg·hm-2.

Key words: potassium application amount, cauliflower, yield, quality