previous crop

Analysis on Yield and Benefit of Sugarbeet of different Previous Crop and Follow Crop

不同前茬甜菜与其后作产量及效益分析

Effect of Rice Straw Application Time in Previous Crop Season on CH4 Emission from Rice Paddy Field

前茬季节稻草还田时间对稻田CH4排放的影响

High temperature, heavy rainfall, peanut as previous crop, cow dung as base fertilizer, small leaf tall stem variety, straw covered or non covered caused a higher incidence.

的影响大，在高温、降雨多、前季作物为花生、用牛粪作基肥、尖顶窄叶高秆品种、土表覆盖稻草或不覆盖等条件下发生更严重，而白术生育期对此没有影响。

It was shown that soybean was the best previous crop of sugar beet, which have increased 10. 8%~ 14. 4%, for root yield, net benefit increased 26.5%~ 37.1% than other crops;

结果表明，大豆是甜菜的最好前茬，比其它茬口增产块根10.8%～14.4%，纯效益可增收26.5%～37.1%；

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。

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。

Effects of Previous Crop on Soil Nutrient Availability, Plant Nutritional Status, Yield and Quality of Flue-cured Tobacco

不同前作对烟田土壤养分供应、烟株营养及烟叶产质量的影响

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CH4排放的影响。

Seasonal variation of soil Eh and CH4 fluxes were also affected by rice straw application time in the previous crop season.

稻草还田时间还明显影响CH4排放和土壤Eh的季节变化。

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。

Applying rice straw just before soil is flooded for rice transplanting ( DFL) significantly enhanced CH4 flux by 3.04 times in 1996 and 7.12 times in 1997 compared with rice straw application just before the previous crop season ( DFE).

与前茬季节前施用稻草（稻草早）相比，水稻移栽前施用稻草（稻草晚）的处理CH4排放量增加了3.04（1996年）和7.12（1997年）倍。

This decrease is related to the supply enlargement-some mills are still with the product from the previous crop.

下降与供应量增大有关，一些工厂还是用去年的谷物。

The long-lasting floods will also affect the ecology of the region rendering much previous crop research useless.

持续很长时间的洪水还影响了该地区的生态，让此前许多农作物研究变得无用。