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.
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。
Exerting agriculture, fertilizer and engineering science, comes out technology methodology of the poultry excrement and straw.
综合运用农学、肥料学、工程学等研究方法技术，探索畜禽粪便和秸秆资源化利用的技术途径。
Exerting agriculture, fertilizer and engineering science, comes out technology methodology of the poultry excrement and straw.
综合运用农学、肥料学、工程学等研究方法技术，探索畜禽粪便和秸秆资源化利用的技术途径。
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