氮是植物最主要营养元素，被称为生命元素，与作物的产量和品质关系极大。
Nitrogen is one of the most important nutrients, known as the life element, it has the close relationship with crop yield and quality.
氮素是植物需求量最大的矿质营养元素，也是影响植物生长的主要营养元素。
Nitrogen (n) is one of the most essential mineral elements and the major limited nutrient for plants.
从花生收获后来看湿涝对花376主要营养元素积累总量的影响大于豫花15。
The effect of waterlogging on the total accumulation of main nutrient element in hua 376 is greater than that in Yuhua 15 after the harvest of the peanut.
水中主要营养元素含量较高，叶绿素含量随季节变化明显，且不同塌陷塘之间差别也较大。
The contents of major nutrient elements were high, there was marked seasonal changes in the content of chlorophyll-a and different subside pool had great difference.
应用模拟土柱试验研究了施用白云石和沸石（尿素沸石）对皖南地区酸性红黄壤中主要营养元素淋溶过程的影响。
The effect of applying Dolomite and Zeolite(Urea-Zeolite) on nutrient leaching in Wanlan acid red-yellow soil was studied with soil columns repacked in laboratory.
氮是陆地生态系统中三大营养元素之一，在森林生态系统中被视作主要的限制生长因子。
Nitrogen is one of the three essential nutrients in the terrestrial ecosystem and is regarded as a main limited factor in the forest ecosystem.
氮素是植物必要的营养元素之一，其主要来源有：生物固氮作用、降雨和灌溉水以及人工施肥。
Nitrogen for plant nutrition is mainly obtained from three sources: nitrogen-fixing plant, rain water and manure.
主要微量营养元素的有效态多大于其缺素临界值，但存在潜在缺素的可能性。
Generally, the available state of the major nutrient elements is larger than their critical value for plant with potential nutrient deficiency.
豆渣是豆腐、腐竹、豆奶等大豆制品加工中的主要副产物，富含膳食纤维、蛋白质、钙等营养元素，是一种新型保健食品资源。
Soybean residue is the mainly byproduct in the processing of soybean, it contains plenty of dietary fiber, protein and calcium, so it is a new type health care food resource.
在河流方面，监测课题所要求的主要入库河流，清水河、对家河、白马关河的水质水量情况，掌握了它们对水库的营养元素贡献量。
The water quality and volume of the major river such as Qingshui River, Duijia River and White Maguan River had been measured and their nutrient contribution to the reservoir had been calculated too.
象山港海域营养元素的主要来源为陆源径流输入和海水养殖废水的排放，其次是海洋生物和大气沉降输入。
For Xiangshan Bay, main sources of nutrients are continental runoff input and the discharge of mariculture waste water, followed by Marine life and atmospheric sedimentation.
近年来，硫被认为是植物四大营养元素之一，主要以硫元素和硫酸盐为硫源。
Sulfur, recently rated one of the four most important plant nutrients, is most commonly applied in the form of elemental S and sulfates.
主要生物控制作用包括，一方面促进水体生态系统的物质循环和能量流动，加速营养元素沉降或脱离水生生态系统；
The main biological role include, 1) promoting water ecosystems material circulation, energy flowing and speed up the settlement of nutrients from aquatic ecosystems;
主要生物控制作用包括，一方面促进水体生态系统的物质循环和能量流动，加速营养元素沉降或脱离水生生态系统；
The main biological role include, 1) promoting water ecosystems material circulation, energy flowing and speed up the settlement of nutrients from aquatic ecosystems;
应用推荐