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- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- Grain crop yield 粮食生产
- Grain crop yield per unit area 粮食单产
- Crop yield correlates closely with annual rainfall. 农作物的收成与年降雨量有密切关系。
- Ways of Improving Crop Yield Per Unit Area and the Countermeasures. 提高作物单产的途径与对策。
- To harvest(a grain crop) using a cutting,threshing,and cleaning machine. 用切割、脱粒、打场机收割（庄稼）。
- The study of plant nutrition and growth as related to soil condition, especially to determine ways to increase crop yield. 农业生物学; 土壤生物学关于植物养分和与土壤条件相关的生长的研究，尤其是对判定如何增加农作物产量方法的研究
- To harvest(a grain crop) using a cutting, threshing, and cleaning machine. 用联合收割机收割用切割、脱粒、打场机收割（庄稼）
- Blackened circles denote accumulated temperatures and open ones crop yield. 涂黑圆圈表示积温,空白圆圈表示作物产量。
- Grain crop came true self-sufficient and superabundant, basically form.. 粮食产量实现了自给有余，基本上形...
- This species has been cultivated as a grain crop in the uplands of Taiwan. 本种在台湾的高地象颖果庄稼一样栽培的。
- The crop yields for the year are phenomenal. 当年的庄稼产量是惊人的。
- They are very important for protecting grain crops. 对于谷类植物的保护来说它们是非常重要的。
- We should not permit them to corner, quietly, a large part of this year's grain crop. 我们不应该让他们悄悄地把今年的一大部分粮食囤积起来。
- Effect of long-term single application of chemical fertilizer on soil properties and crop yield. 长期单施化肥对土壤性状及作物产量的影响。
- The best-known grain crops are wheat, barley, oats and maize. 人们最熟知的粮食作物是小麦、大麦、燕麦和玉米。
- Effects of rice straw mulch and water-retaining agent on soil properties and crop yield. 施用保水剂和稻草覆盖对作物和土壤的效应。
- In this way, farmers have enough moisture to produce a grain crop in each strip every other year. 这种方法使农民每隔一年在每块条田中有足够的水分去生产谷物。
- N2O is a gas released by ammonium nitrate, which is widely used as a fertilizer to increase crop yield. N2O是由硝酸铵释放出来的气体,硝酸铵是一种广泛使用的化学肥料用于增加农作物的产量。
- Effect of plastic film mulching on crop yield and nitrogen efficiency in semiarid areas. 半干旱地区地膜覆盖对作物产量和氮效率的影响。
