水稻旱育稀植纹枯病防治初探

１９９３－１９９４年，从栽培、植保、气象学的基本原理出发，试对水稻旱育稀植栽培和常规栽培法进行了稻田田间小气候、水稻纹枯病发生及其防治策略的系统试验比较。结果表明，水稻旱育稀植田间温度升高、温度降低，行间透光率提高，致使纹枯病发生期推迟，发病程度减轻，能减少一次用药，降低农本，增加产量。

Preliminary Study of Mildew Prevention and Control with Rice Seedlings Drily Raised and Sparse Transplant

rom 1993 to 1994,according to the basic principles of culture,prevention and control and meteorology,a series of experiments were conducted on comparison between the two ways of the sparse transplant of the drily raised rice seedlings and the conventional rice culture in terms of field microclimate,mildew occurrence and its prevention and control. The results show that if rice seedlings are drily raised and sparsely transplanted,the field microclimate is raised and the moist t ure is lowered with more sunlight between the rows. As a result,the mildew occurrence periodcan be delayed and the mildew degree can be lessened with less farrn chemical,lower agricalturalcost and higher output.