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- The MPP is calculated for a given level of fertilizer use. 计算得到一定肥料用量水平的边际产量。
- Further, fertilizer use should be practiced in Integrated Plant Nutrition System (IPNS). 另外,应在综合植物养分系统中施用肥料。
- Charcoal and fertilizer reduce the typical nitrous oxide (GHG) emissions from agricultural fertilizer use. 木炭和肥料减少了农业肥料使用中典型的氮化物的释放量。
- For example, as China sold sought food securityit's policy inquest , its policies increased fertilizer use. 比如郭,中国味了寻求事物的安全,它的政治就会增加肥料的使用。
- For example, as China solt, sought food sucuritysecurity, its policies in increased fertilizer use. 比如,为了保证中国食物的安全,它的政策往往会增加化肥使用量。
- By protecting the topsoil and reducing fertilizer use, conservation agriculture can help in the fight against global warming. 等一下,还有呢!通过保护表层土和减少化肥施用量,保护性农业能够在与全球变暖的斗争中发挥作用。
- It is very important to increase fertilizer use efficiency (FUE) in China for its relatively low FUE and serious losses of nutrient. 尽管耕地面积只占世界耕地面积总量的7%25,但中国的化肥施用量却接近世界总量的1/3。
- After I have outlined the conceptual model, I will then use data on fertilizer use from a region in east-central Hunan province to illustrate how these concepts can be applied. 有了以上概念后,再用湖南省中东部地区的资料来说明这些概念是如何应用的。
- In a situation where no constraints on the use of fertilizer are present, production can be maximized by finding the level of fertilizer use that makes the MPP equal to zero. 在肥料使用不受限制时,边际产量为零的肥料用量水平可以取得最高产量。
- Fertilizer use differs from country to country, and from too little to too much. Nitrogen and phosphorus can produce big crops. But they can also pollute water and air. 每个国家的肥料使用各不相同,有的太少,有的太多。氮素和磷素能够促进作物生长,但是也会污染水和空气。
- When the difference in the level of fertilizer use is large, it is usually assumed that the MPP that is calculated applies over the range between the two levels of fertilizer use. 当肥料用量水平差值较大时,通常考虑计算超出两个肥料用量水平范围的边际产量。
- Nitrogen (N) fertilizer use efficiency can be improved by two ways, that is, optimized N fertilizer management and genetic improvement of nitrogen use efficiency (NUE) of crops. 摘要提高氮肥利用率依赖于氮肥优化管理及作物氮素营养效率的遗传改良。
- Fertilizer use differs from country to country, and from too little to too much. Nitrogen and phosphorus can produce big crops,but . But they can also pollute water and air. 肥料在不同的国家,用太少或太多,都会有不同。氮和磷能使农作物长得更壮,但是,他们也会污染水和空气。
- The rheology properties of dough could be changed with properly decreased nitrogen fertilizer use, elongating developing time and stability and increasing evaluation value. 适当减少氮肥施肥量能改变面团的流变学特性,延长面团的形成时间和稳定时间,提高评价值;
- Fertilizer is the material base in water-soil system and water is a key factor in increasing fertilizer use efficiency.They are promotive and restrictive to each other. 肥是土水系统的物质基础,水是肥效发挥的关键,二者互为制约,又互相促进。
- Fertilizer use gained in 1995. 1995年化肥的使用增加了。
- Results showed that the treatment of PGPR and chemical fertilizer used together had a remarkable impact on rice growth. 试验结果表明,PGPR制剂与化肥配合施用对水稻生长发育产生了显著的影响。
- That's rather an effective use of color. 这种使用颜色的手法效果相当好。
- Polonium-210 is also present in the fine tobacco hairs, coming from the phosphorus fertilizer used in growing tobacco plant. 烟草上的茸毛含有微量钋210,主要是来自土壤和菸草使用的磷肥。
- As time progresses, the opportunity cost of ignoring the benefits of adequate fertilizer use increase and the ability to repair damages to China's soil resource subsequently decline. 随着时间的推移,忽视充分施用化肥的效益的机会成本在增加,结果对中国土壤资源损害的补救能力在下降。