今年春天，一份联邦科学建议报告有可能建议提高氮肥使用率提高25%的国家目标。赫兹和盖洛韦说。
This spring, a federal science advisory report is expected to recommend a national goal of improving the efficiency of farm nitrogen fertilizer use by 25 percent, Herz and Galloway say.
能源约占氮肥生产成本的四分之三，因而对美国许多农民来说，天然气之类产品较为便宜的价格使美国Terra公司成了一个有吸引力的商品。
Energy accounts for about three-quarters of the cost of producing nitrogen fertilisers, so cheaper gas and proximity to America's many farmers make Terra an attractive buy.
肥料种类以氮肥为主，每次每亩可施有稀薄的人粪尿液1500 ~ 2000公斤，加入尿素5 ~10公斤。
Types of fertilizer with nitrogen fertilizer, per mu can be with human excrement urine thin 1500 ~ 2000 kg, 5 ~ 10 kg urea.
不同氮肥水平对棉花各个器官中碳水化合物代谢有重要的影响。
Different nitrogen level affected the carbohydrate metabolism in various organs of cotton plant evidently.
渗透胁迫和不同氮肥形态处理烤烟叶片内源激素和多胺含量有明显的差异。
There are obvious difference in the contents of endogenous hormone and polyamine content under osmotic stress and different nitrogen forms.
在试验条件下，随着施氮量的增加，氮肥对生土地大豆根瘤形成的抑制作用加大，但对大豆后期根系的生长有促进作用。
Within the condition of this study, the inhibition that the nitrogenous fertilizer takes shape to the raw soil soybean nodule increased along with the increasing of nitrogen used.
DMPP对提高玉米氮肥利用率有显著效果。
DMPP can improve the yield of maize, especially on the nitrogen recovery rate.
保水剂与氮肥交互作用对玉米苗期生理特性、养分吸收及水分利用效率有一定的影响。
The interaction between SAP and nitrogen fertilizer had effect on the physiological properties of maize in seeding stage, nutrient absorption and water utilization efficiency.
结果表明，3个冬小麦品种（系）中，93132具有较高的基础产量，而农大95对氮肥反应最为敏感；
The results indicated that among three winter wheat varieties, 93132 had higher basic yield and Nongda 95 was more sensitive to nitrogen fertilizer;
长期单施氮肥较不施肥的对照（CK）玉米籽粒营养品质有一定的改善，但籽粒粗脂肪含量和淀粉粘度有不同程度的下降。
P had more important effects on corn qualities than K. Compared with CK, long-term N-applying only could improve the corn nutrition, but decrease the flour ash content and starch viscosity.
长期单施氮肥较不施肥的对照（CK）玉米籽粒营养品质有一定的改善，但籽粒粗脂肪含量和淀粉粘度有不同程度的下降。
P had more important effects on corn qualities than K. Compared with CK, long-term N-applying only could improve the corn nutrition, but decrease the flour ash content and starch viscosity.
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