土壤供氮状况是判断土壤肥力的一项重要指标。
The supply condition of nitrogen is one of the important targets to judge the fertility in soils .
土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification.
在不同土壤水氮条件下，研究了小麦中后期叶片碳氮状况及其比例与冠层光谱反射特征的关系。
The research was conducted to determine the relationships of sugar and nitrogen status and its ratio in wheat leaves to canopy spectral reflectance under different nitrogen and water supply levels.
综合全球各地的河流状况，估算结果表明：大气中人类造成的一氧化二氮排放至少有10%源于河流和溪流。
When summed across the globe, the results showed rivers and streams are the source of at least 10 percent of human-caused nitrous oxide emissions to the atmosphere.
粉孢侧革菌处理漂白废水的能力主要受菌种的营养状况影响，本文利用不同的人工合成培养基验证了漂白废水脱色与贫氮引发的木素降解态是有关的。
By using various synthetic mediums, the authors verify here that effluent decolorization is related to the fungi's ligninolytic state, which can be induced under the low-nitrogen growth medium.
研究了不同土壤水氮条件下水稻冠层光谱反射特征与植株水分状况的量化关系。
Relationship between canopy reflectance characteristics and plant water status under different water and nitrogen levels was studied.
中氮企业设备庞大、结构复杂、管理难度大，不同维修体制影响设备运行的状况与成本。
The equipment maintenance system influences the condition and cost of the equipment movement.
采用物流核算的方法研究了中国惠州地区与人类活动有关的氮流在环境系统和人类生产生活系统的状况。
By the method of material flow accounting, this paper studied the human activities-related nitrogen flow in the system of environment and anthroposphere in Huizhou region.
氮素动态调控时期由高产栽培常用的追肥时期或根据水稻群体状况与土壤矿质态氮浓度综合判断确定，追氮量由模型计算获得。
The time of dynamic nitrogen adjustment were determined by regular patterns or by the comprehensive evaluation of soil mineral nitrogen concentration and rice population status.
本文论述了三种肥料结构对红壤性水稻土氮磷钾养分状况的影响。
The influence of three fertilizer structures on the status of nitrogen, phosphorus and potassium in paddy soil derived from red earth was studied.
结果表明，水稻对铵态氮和硝态氮的吸收与养分供应状况有很大关系。
The results showed that the amount of absorbed nitrogen in different forms varied with nitrogen and potassium levels.
结果表明，全氮、碱解氮和有机质是黄土丘陵区人工林土壤主要的肥力指标，其含量能更好地反映土壤肥力状况。
The results showed that total nitrogen, available nitrogen and organic matter were the main fertility indicators for soil fertility evaluation in the planted forest land on the Loess Plateau.
下位叶比上位叶对土壤氮的供应状况更为敏感，随着施氮量的增加，水稻叶片氮素含量、叶绿素含量、SPAD值相应的增加，而下位叶的增幅更明显。
Leaf N/ chlorophyll content and SPAD value increased with the increasing N fertilizer, and the lower leaves were more sensitive to the soil N supply than the upper leaves.
轻度土壤干旱下，小麦叶片仍能维持较好的水分状况，高氮营养对叶片光合作用有明显的促进作用。
The objective of this study was to evaluate the effects of nitrogen nutrition on water status and photosynthesis in wheat under soil drought.
马铃薯对氮的吸收与营养生长和块茎的增长密切相关，植株对氮的需求量受其生长状况所控制。
The absorption of nitrogen into potato plant was closely related to the vegetative growth and tuber bulking.
花丝、穗本身的生长发育状况也影响穗粒数的形成，施氮可明显促进夏玉米花丝、穗的生长发育。
The growth and development of silk and ear, which were influenced by N supply, also affected KN.
前言：通过对长春市地下水中“三氮”污染状况的分析，发现硝酸盐是地下水中的主要氮污染物。
From the nitrogen pollution of Changhun groundwater analysis, the discovery showed the main nitrogen pollutant in the groundwater is nitrate.
氮是构成蛋白质的主要成份，氮素供应的充分与否和植物氮素营养的好坏，在很大程度上影响着植物的生长发育状况。
The nitrogen is the main composition of protein, whether nitrogen supply well or not and nutrient quality in plant, affect the growth condition of the plant to a large extent.
在了解水体水质变化状况的基础上，利用消氮细菌及沉淀细菌对实验水体进行生物修复。
In the end, the basic change of the water quality is deserved. On the basis of those, the eutrophication waters can be repaired by precipitum and nitrobacteria.
在了解水体水质变化状况的基础上，利用消氮细菌及沉淀细菌对实验水体进行生物修复。
In the end, the basic change of the water quality is deserved. On the basis of those, the eutrophication waters can be repaired by precipitum and nitrobacteria.
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