Previous Crops can not use crop diseases and soil pests susceptible seedlings serious land.
不可选用前茬作物对苗木易感染病害和地下害虫严重的土地。
Winter wheat yield was more sensitive to rainfall and spring maize yield more influenced by previous crop stubbles in rotation system.
在轮作条件下，冬小麦的产量更容易受到降水的影响，而春玉米的产量更容易受茬口的影响。
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.
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。
Compared with the previous crop type of soybean, rice planting in the previous season accelerated soil nitrification-denitrification rate in the following wheat season.
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。
Conventional tillage controls weed growth by plowing and cultivating, but no-till farming selectively USES herbicides to kill weeds and the remains of the previous crop.
传统的耕作方法将通过耕地来减少杂草的生长，但免耕农业选择使用除草剂来消灭杂草，以保护作物。
Whether or not allow the commodities of the previous crop years to be a substitute should be determined on the basis of the principles of spot market and the futures market.
跨年度交割品是否可以交剖，应在现货市场基础上，结合期货市场运行规律来确定。
No-till agriculture, an agronomic practice in which farmers do not plough up the land but leave part of the previous year's crop on it, also preserves water.
免耕农业是一种农艺实践，农民不翻耕，而是将前一年的作物留在土地上，这同时也可以蓄水。
Fortunately, bumper crops were harvested in non-flooded areas of Australia, and the winter crop harvest in country was up 19% over the previous year’s crop, and was the biggest since 2003 – 2004.
幸运的是，非受灾情的粮食丰收缓和了小麦减产的影响，同时冬季粮产量较前年增长19%，达到自2003-2004年以来的最高水平。
Not counting the autumn crop of maize, their total grain output still exceeded that of the previous year.
不把秋季玉米收成算进去，他们的粮食总产量仍超过头一年。
This crop has similar qualities to the previous one, being both cold----resistant and adapted to the same type of soil.
这种庄稼与前一种特点类似，耐寒且适应同样类型的土壤。
According to previous research and data, this paper review some aspects how quality of some crops such as cereal crop, root and tuber crop, vegetable and flue-cured tobacco is affected by potassium.
根据前人的资料和研究，对钾如何影响谷类作物，块根、块茎作物、蔬菜及烤烟品质的问题作了简要评述。
Although they had harvested a good crop the previous year, landlords, creditors, taxes, levies, one after another, had cleaned the peasants out long ago.
去年秋收固然还好，可是地主，债主，正税，杂捐，一层一层地剥削来，早就完了。
The fresh applied fertilizers to groundnut did not affect the groundnut yield, essentially because higher levels had already been applied to previous maize crop.
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。
We are not tell whether the survey compared last year's organic crop yields with yields from previous years or with those from other synthetic farms this year.
我们不知道调查是不是把去年有机农业的农产品产量与之前年份进行对比，还是与今年其他的合成农业产量进行对比。
Counting the autumn crop of maise, their total grain output still exceeded that of the previous year.
把秋季玉米收成算进去，他们的粮食总产量仍然超过头一年。
Research into so-called 'extinction events' for our planet over the past 500 million years - twice as long as any previous studies - has proved that they crop up with metronomic regularity.
科学家研究了过去5亿年间地球上发生的所谓的“灭绝事件”，时间跨度是先前任何一项研究的两倍。此次研究证实大灭绝的出现是有时间规律的。
Previous researchers through conventional field observation methods had proved that to increase fertilizer input was the key measure to enhance soil carbon sequestration and crop yield-increasing.
前人通过实地观测的常规方法，证明了增加肥料投入是土壤增汇、粮食增产的关键措施。
Still, hiring of this year's crop of graduates is up 5 percent over the previous year, according to the National Association of Colleges and Employers.
但是根据全国大学和雇主协会的统计，今年招收大学毕业生的数量相比去年还是上升了5%。
Still, hiring of this year's crop of graduates is up 5 percent over the previous year, according to the National Association of Colleges and Employers.
但是根据全国大学和雇主协会的统计，今年招收大学毕业生的数量相比去年还是上升了5%。
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