| 1. | Effects of tillage methods on scattered - transplanting rice growth and nitrogen use efficiency 不同耕作方法对抛秧水稻生长和氮素利用的影响 |
| 2. | Nitrogen use efficiency of competing individuals in a dense stand of an annual herb , chenopodium album 藜个体在高密度种群中的氮素利用效率 |
| 3. | Slow controlled release fertilizer effect on wheat yield and fertilizer - nitrogen use efficiency 控释肥对小麦增产与提高氮肥利用率的效果研究 |
| 4. | Nitrogen uptake and fertilizer nitrogen use efficiency of wheat under different soil water conditions 示踪法研究不同土壤水分条件下小麦对氮的吸收利用 |
| 5. | Effects of the different irrigation - fertilization optimization models on grain yield , yield structure and water and nitrogen use efficiency of winter wheat 不同水氮优化组合模式对冬小麦产量形成及水氮资源利用效率的影响 |
| 6. | Hubei province to investigate the effects of several water and nitrogen management patterns on eco - physiological conditions , yield , water use efficiency and nitrogen use efficiency in paddy rice 结果表明,在适当的施肥量和合理的追肥方式下,与传统的淹灌相比,节水灌溉可提高水稻水分生产率及氮肥利用率,获得高产。 |