
浙南山区单季杂交稻稻曲病发生与气候的关系及防控
网络出版日期: 2018-09-20
基金资助
浙江省“三农六方”科技协助项目(CTZB-F160728AWZ-SNY1-4)
The Relationship between Climate and Rice False Smut Occurrence and its Prevention and Control Techniques in Southern Mountain Area of Zhejiang Province
饶汉宗1,谢子正2,李阳3,石磊4,黄世文5* . 浙南山区单季杂交稻稻曲病发生与气候的关系及防控[J]. 中国稻米, 2018 , 24(5) : 89 -92 . DOI: 10.3969/j.issn.1006-8082.2018.05.020
The occurrence rules and harm rules of rice false smut (RFS) (Ustilaginoidea virens), and it’s prevention and control techniques were made clear through 10 years observation, investigation combine with field trials. Zhongzheyou 1, Zhongzheyou 8 and Yongyou 1540 have good resistance to RFS in the field and suitable for planting in the southern mountain area of Zhejiang province. The occurrence degree of RFS is closely related to the climatic conditions from the period of booting-heading to early filling, the condition with suitable temperature (26℃~28℃) and high humidity (RH over 80%) are particularly favorable for the occurrence of RFS. The fertilizer application dosage, especially nitrogen fertilizer application dosage had a great influence on the occurrence of RFS. The varieties with big panicle and more spikelets are susceptible to RFS. Spraying two times of pesticides is best for prevention RFS, and the better way is alternate apply the pesticides in two spray times.
Key words: rice false smut; occurrence degree; climate; varieties; chemical control; control efficiency
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