英德
有道
百度
谷歌
图片
维基
百科
作物密度 [zuò wù mì dù]
[农学] cropping intensity
- 研究了稻草覆盖、增加作物种植密度及开沟深度等农作措施对油菜田杂草的控制作用。
Field studies were conducted to evaluate the effects of agronomic practices such as rice straw mulches, planting density and ditch depth on control of rape weeds. - 结果血吸虫病发病率与年龄、性别、钉螺感染密度、作物种植结构等因素具有显著的相关关系。
Results Incidence of schistosomiasis shows significant correlativity with factors such as age, gender, infection density of snail, planting configuration and so on. - 试验表明：经一年多时间的轮作，各小区之间根结线虫虫口密度显著差异：种植葱、油菜等作物线虫密度大幅下降；
Different crops in the field remarkably affects the population density of the root-knot nematodes: Some plants can cause the decrease of the density, such as shallot, garlic, cole.
 |
 |
 |
 |
 |
 |
 |
中国词汇量第二的英语词典
更多精彩，登录后发现......
