您要查找的是不是：
- Crop residues are left on the surface. 作物的残根留在地面。
- 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。
- No-till farming, in which farmers leave crop residues in place instead of tilling them into the earth, protects the soil from erosion and compaction and promotes the accumulation of organic matter. 不整地耕作法是指农夫将作物残株留下来，不把它们犁进土里，如此一来可保护土壤免于侵蚀和压实，并促进有机物质的累积。
- Alley cropping system with Flemingia congesta as hedgerows; hedgerows are cut regularly and the foliages are used for mulch; conventional tillage, crop residues are incorporated. 在种植制度中，用黎豆属作物作为第三季覆盖作物。用除草剂或人工除草实施免耕，把黎豆属作物叶片和其它作物残体，作为覆盖物。
- Advance of Crop Residues Fertilize the Soil 作物残体培肥土壤的研究进展
- 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。
- 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。
- 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。
- 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。
- 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。
