论文部分内容阅读
乌什县传统的主栽油料作物是胡麻,但是它有以下的缺点。(一)产量低,一般亩产10O斤左右,达到200斤就是高产田,超过250斤就很困难。(二)后茬不好,社员说种过胡麻的地与生过伤寒病的人一样。(三)胡麻易受芸芥、兔丝子等农田杂草的危害、又因是密植作物,不便于中耕除草。(四)胡麻收割打场适在八月多雨季节,容易在场上霉坏变质。油菜则因对土壤肥力要求高,瘠薄土地生长很差和易受蚜虫危害而不能迅速扩大面积。
Wushi County, the traditional main crop is flax, but it has the following disadvantages. (A) low yield, generally about 10O kg per mu, up to 200 pounds is high yield field, more than 250 pounds is very difficult. (B) stubble is not good, members said that the seeds of flax and the people who have had typhoid fever. (C) Flax susceptible to Yunjie, rabbit silk weeds and other hazards, but also because of close planting crops, not easy to cultivate weeds. (D) flax harvester playing field suitable August rainy season, easy on the field mold bad metamorphosis. Rape can not expand rapidly because of its high requirements on soil fertility, infertility growth of barren land, and susceptibility to aphids.