| 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. | One argument in favor of supporting agricultural prices is that it stimulates agricultural technology and boosts crop yields .
有一种观点认为农业价格支持可以刺激农业技术的发展并提高作物产量。 |
| 3. | 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。 |
| 4. | Modification and simulation of the model of crops yield
作物产量模型的修正和拟合。 |
| 5. | Crop yield correlates closely with annual rainfall
农作物的收成与年降雨量有密切关系。 |
| 6. | Can be used for production all year round , thus improve the crop yield
整年可作生产，提高产量 |
| 7. | Monitoring crop yield using noaa avhrr - based vegetation indices
基于植被指数的作物产量监测方法研究 |
| 8. | Effect of long - continuous fertilization on crops yield in shajiang black soil
长期连续培肥对作物产量的影响 |
| 9. | Advances in technology have improved crop yields by over 30 %
技术进步使得农作物的产量提高了超过百分之三十。 |
| 10. | A ) advances in technology have improved crop yields by over 30 %
技术进步使得农作物的产量提高了超过百分之三十。 |
