通过盆栽试验研究了前茬季节稻草还田时间对稻田ch 4排放的影响。
A pot experiment was carried out to investigate the effect of rice straw application time in the previous crop season on CH4 emissions from rice field.
与前茬种植大豆相比，前茬作物水稻促进了后季麦田土壤硝化-反硝化作用。
Compared with the previous crop type of soybean, rice planting in the previous season accelerated soil nitrification-denitrification rate in the following wheat season.
新施于花生的肥料对花生产量不产生影响，根本原因在于前茬作物玉米已施过较高水平的肥料。
The fresh applied fertilizers to groundnut did not affect the groundnut yield, essentially because higher levels had already been applied to previous maize crop.
前茬作物、播种方式、耕作制度和气候条件等都通过影响玉米的播期或灰飞虱的发生数量来间接影响当地或当年病害发生的轻重。
The others such as previous crops, sowing way for maize, cropping system and the climate were indirect factors, which affected the sowing date or amount of planthopper.
1996年在稻茬免耕小麦田，进行了播前和播后药剂除草试验。
In 1995-1996, field trials with herbicides to control weeds in rice stubble wheat field were carried out.
1996年在稻茬免耕小麦田，进行了播前和播后药剂除草试验。
In 1995-1996, field trials with herbicides to control weeds in rice stubble wheat field were carried out.
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