洋葱抽薹形成原因及防治措施研究

Study on the Causes of Onion Bolting and the Control Measures

通过4a的洋葱品比试验和10a的高效栽培技术研究,结果表明,洋葱的抽薹率与品种、播期、光照和温度等密切相关。结合生产实际,针对形成薹葱的影响因素提出了选用西葱1号和西葱2号等优良品种,9月中下旬播种、适时定植,喷施薹葱抑制剂,定植后适时适量追肥,发现抽薹葱人工摘除薹等防治措施。

The results of four years comparative trial of onion cuhivars and ten years study on the high effective cultivation techniques have shown that the onion bolting rate is closely related to its cultivar, sowing time, light and temperature. Based on the factors to affect onion bolting, the following measurements should be adopted. Xicong No.l, Xicong No.2 and so on good cuhivars should be used. They should be sowed in the the middle and last twenty days of Sep., planted at the appropriate time, sprayed with the anti-bolting reagent, fertilized at the appropriate time and appropriate quantity, the onion bolting should be removed on time and so on.