查询词典 nutrient

Within a short time span of just over 40 years China has developed from an insignificant to the world's largest and still fastest growing producer and user of chemical nitrogen fertilizer. Unfortunately China is now also the country with the most unbalanced nutrient ratio. If continued into the future, the grave nutrient imbalance that prevails at present threatens the fertility of China's soils that has been maintained so well over the centuries, thereby also threatening, sustainable agriculture.

仅40多年时间里中国就从世界上微不足道的氮肥使用国发展成为最大的、而且增长速度最快的氮肥生产和使用国，令人遗憾的是中国是世界氮、磷、钾使用最不平衡的国家，如果任凭这种趋势继续下去，将势必对数千年来我们祖先一直维持良好的地力造成威胁，由此也对农业持续发展带来威胁。

The production of crop specific controlled release BB fertilizer is simple and easy to do by mixing different nutrient-lapsed time fertilizers according the different nutrient demand ratio of crops,it should be the developing direction of compound fertilizer in China.

分析了树脂和硫磺包裹尿素缓释肥料发展缓慢的原因和弊端，提出以水溶性聚合物作为尿素和复混肥料的包膜胶结和内质缓释剂，具有降解快对作物无害改善土壤结构成本低等特点，将促进缓释肥料的发展采用生产不同时间段释放养分的缓释肥，按作物不同生育期对养分的需求比例掺混在一起，生产作物专用的缓/控释BB肥料简单易行，应是我国缓/控释肥料的发展方向

The changes of nutrient in sweet pepper leaf at bud and at full fruit stage were different and the change of nutrient ratio (N/P, N/K, K/P) was smaller at bud stage than at full fruit stage, which was better stage for nutrition diagnosis.

甜椒花蕾期和盛果期叶片养分变化规律不尽相同，叶片养分比例N/P、N/K、K/P以花蕾期变化小于盛果期，为甜椒适宜营养诊断期。

In each district union the principle of nutrient balance and using adjustment coefficient method of soil available nutrient, we obtained the recommendation amount to apply fertilizer in different fertility region of paddy soil.

在各个分区内，结合养分平衡原理，利用土壤有效养分校正系数法，得出了水稻土不同肥力区域的推荐施肥用量。

By comparison of long-term exposure with long-term immersion, the release amount of ammonium, nitrite, nitrate and dissolved phosphorus into the overlying waters from the sediments were increased during the reflooding after long-term dessication, reflecting that long-term exposure stimulated sediments as a releasing source of nutrient and accelerated the biogeochemical cycle of nutrient in the tidal flat ecosystem.

通过对比分析发现，长期暴露之后能够增加沉积物向上覆水体释放NH〓-N、NO〓-N、NO〓-N和TDP，显示了长期暴露加剧了沉积物作为营养盐的源效应，并且加速了潮滩生态系统内营养盐的生物地球化学循环过程。

Much of the research on nutrient deficiencies is based on growing plants hydroponically, that is, in soilless liquid nutrient solutions.

大多数关于营养素缺乏症的研究都基于水培法，即在无土营养液中培养。

The effect of N forms and Ratios on iron nutrition in hydroponically grown lettuce were investigated. It was found that suitable ratioNO3--N:NH4+-N:CO(NH22 =6:6:0 in nutrient solution can significantly promote plant growth, raise chlorophyll content, improve plant iron utilization efficiency, and reduces nitrate content accumulation in leaves, and the cost of nutrient solution was thus reduced.

硝态氮、氨态氮与酰胺态氮及其不同配比对水培油菜铁素营养的影响试验，结果表明，不同形态氮素显著影响植物的铁素营养状况，NO_3~--N：NH_4~--N：CO(NH_2)_2为6：6：0的处理比单一NO_3~--N使用处理，能促进水培油菜生长，提高叶绿素含量，增加植物体内铁的活性，降低叶片中硝酸盐含量的积累，降低营养液成本。

Forage with much small particle size could decrease nutrient digestion in the rumen and the small intestine and increase nutrient digestion in the hindgut of sheep.

由此可见，粗饲料颗粒度过小，降低饲粮养分在瘤胃和小肠的消化，饲粮养分在后肠道的消化增加。

This article summarized soja to condense the quality standard of albumen product and nutrient character, elaborated soja to condense albumen to be in inchoate ablactation young pig and inchoate ablactation the applied effect in calf ox and aquatic product feed.

此文简述了大豆浓缩蛋白产品的质量标准和营养特性，阐述了大豆浓缩蛋白在早期断奶仔猪和早期断奶犊牛及水产饲料中的应用效果。

The allowances are set to be two standard deviations above the mean requirement for a given nutrient for a given group, based on the scientific findings for the group.

这种计算是依据对那组人的科学调查的结果。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。