| 1. | It is easy to demonstrate that the addition of inorganic fertilizers makes rapid and significant improvements in crop yields .
加入无机肥料迅速明显地增加作物产量，这一点很容易证实。 |
| 2. | Farmers can lose rather than gain if incomes fluctuate because of variations in crop yields and outputs-stable prices can then destabilize incomes .
农作物产量和产值的变化如果引致收入波动，这对农民来说就可能是有害无益，因为稳定了价格可能稳定不了收入。 |
| 3. | Progress in crop mutation breeding induced by spaceflight
作物航天诱变育种研究进展 |
| 4. | Simulation on nitrogen uptake and partitioning in crops
作物氮素吸收与分配的动态模拟 |
| 5. | Stimulating effect in crop production systems
作物生产系统中的激发效应 |
| 6. | These places marked in crops and such - -
在麦田里作了标记的地方- - |
| 7. | These places marked in crops and such -
那些用庄稼来做标记的地方 |
| 8. | Experimental study on application of phtochemistry aqua in crops
化学抗旱剂在农作物上应用试验研究 |
| 9. | Issr marker and its application in crop genetics and breeding
优质高产香型杂交水稻新组合宜香2292的选育与应用 |
