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- Crop residues are left on the surface. 作物的残根留在地面。
- Description : Maize growing though a previous crop residue under conservation agriculture. EPAGRI . 保护性农业中玉米在前茬作物覆盖下生长。
- Experiments in Kentucky tend to show the same degree of immobilization when nitrogen is placed on crop residue or when placed below the residue layer. 但肯塔基的试验结果似乎表明：无论把氮肥施在植物残体上还是施在覆盖层下，氮的固定程度相同。
- Whether placement of nitrogen fertilizer below the layer of crop residue will reduce nitrogen immobilization is not clear. 对于把氮肥施在植物残体覆盖层以下是否会减少氮的固定，这个问题目前尚不清楚。
- This cloddy condition is the result of long-continued tillage with tractor and heavy disc implements, and without retention of crop residue mulch (FAO Soils Bulletin 75). 硬土块结构是由于拖拉机和其它重型耕翻器具长期连续使用、没有作物残茬覆盖造成的。
- Incorporation of crop residues; conventional tillage. 把作物残体混入土壤的传统耕作制。
- Black carbon is produced from the incomplete combustion of wood, biomass such as crop residues and fossil fuels. 炭黑是由木头、诸如作物残余等生物质以及化石燃料不充分燃烧产生的。
- The available biomass resources (e.g. straw and crop residues) for energy use in China are abundant. 可作为能源利用的秸秆（生物质）资源在我国是丰富的。
- Burning of crop residues; minimum tillage and hand pulling for weed control(farmers' practice). 焚烧作物残体，少耕和人工除草（农民习惯措施）。
- Leaving crop residues on the soil surface helps to increase water infiltration and limit runoff. 留下作物残株在土壤表面，有助于水的浸润而减少迳流；
- The respective proportion of crop residues,firwood and dung in the acquirable quantity is 38.9%,36.0% and 22.14%,respectively. 可获得量中秸秆、薪柴和畜粪所占比例分别达38.;9%25、36
- Control methods include genetic resistance, proper crop rotation, tillage practices to bury crop residues that promote disease development, and fungicides. 控制病害的方法包括：选抗病品种、合理轮作、把易发生病害的作物残体翻入土内、杀真菌剂的应用等。
- Study on design of crop residue choppers for hard stalks 农作物硬茎秆切碎机的设计研制
- Rice is the chief crop in most southern provinces. 稻子是大多数南方省份的主要作物。
- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- We have had the biggest wheat crop ever this year. 今年我们的小麦收获量是有史以来最好的。
- The residue of estate belongs to his son. 剩余财产属于他的儿子。
- Half the fruit crop froze out in the sudden cold. 一半的水果作物在突如其来的寒流中被冻死。
- Rice is the chief crop in this ares. 稻子是这一地区的主要作物。
- We had a poor crop of raspberries this year. 今年我们的悬钩子歉收。
