新疆稻田杂草群落及其生态防除

• 作 者: 刘健华
• 机 构: 新疆农科院粮食作物研究所
• 出 处: 新疆农业科学
• 发表日期: 1981年02期
• 关键词: 杂草群落 杂草 三棱草 稗草 稻田杂草 单产 旱稗 草群 光棍草 水田

人们在水稻生产中,同杂草进行了长期的斗争。但到目前,草害仍然是水稻生产中的主要问题。新疆63个种植水稻的县,1979年单产不到200斤的有28个,最低产的县平均单产只有54斤。杂草多是许多稻区低产的主要原因。据调查,草大的地块,每亩杂草常达30万株以上,而每亩收获穗数不到20万,穗小粒少,产量很低。

People in rice production have long struggled with weeds. But so far, grass damage is still the main problem in rice production. Sixty-three rice-planting counties in Xinjiang have 28 in 1979, with a yield of less than 200 kilograms. The average yield of the lowest producing counties was only 54 kilograms. Weeds and many more is the main reason for low yield of rice. According to the survey, grassy plots, often up to 300,000 per acre of weeds, and less than 200,000 per acre harvest spikelets less, the yield is very low.