The SPAD-502 chlorophyll meter appears promising for rapid, on-farm analysis of crop nitrogen status.
叶绿素仪（SPAD-502）的出现使通过无损伤的田间速测对作物进行氮营养诊断成为可能。
Moreover, GUS gene expression driven by the Gmenod2B promoter in transgenic rice was regulated by nitrogen status.
推测在水稻中可能存在结瘤因子所诱导的豆科早期结瘤素表达的类似机制。
The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification.
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。
Many researches have shown the correlations between nitrogen status and growth rate, photosynthesis, and performances of shoots and roots of plants.
许多研究成果指出，植物体含氮量与生长速率、光合作用速率与地上部及地下部形态具有相关性。
The RING-like ubiquitin E3 ligase of the present invention is involved in mediating nitrogen limitation adaptive responses in plants and its expression is influenced by nitrogen status.
本发明的RING样遍在蛋白E3连接酶参与介导植物中的氮限制适应性应答，且其表达受氮状态的影 响。
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.
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。
This paper summarizes the status of fertilizing of wood land at home and abroad and introduces the concept and meaning of water use efficiency and nitrogen use efficiency.
概述了国内外林地施肥的现状，简要论述了氮肥利用效率和水分利用效率在农林业生产中的意义。
The result indicated that aeration status had a great effect on the mineralization and release of nitrogen in AOL.
结果发现，通气状况对AOL的氮素矿化与释放有较大的影响。
The advantages, technologies and research status of production of high nitrogen stainless steel by powder metallurgy at home and abroad are reviewed.
综述了粉末冶金高氮不锈钢的优点和所采取的主要工艺及国内外研究现状。
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.
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 principle and status of the separation of nitrogen and oxygen from air by high-gradient magnetic field are introduced briefly.
介绍了高梯度磁场氮氧分离的原理及技术现状。
Nitrogen oxides pollution status in coal-fired power plant of China is analyzed, which mainly brings about air pollution, and 70% of the discharged comes from the direct combustion of coal.
对中国燃煤电厂氮氧化物污染现状进行了分析，造成大气污染的主要污染物之一是氮氧化物，而氮氧化物的排放中有70%来自煤炭的直接燃烧。
The objective of this study was to evaluate the effects of nitrogen nutrition on water status and photosynthesis in wheat under soil drought.
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。
This paper outlined the membrane separation technology and analyzed the application status of the technology in the propylene-nitrogen system of the polypropylene (pp) plant.
简要介绍了膜分离技术，并对膜分离技术应用于聚丙烯装置的丙烯-氮气系统的现状进行了分析。
The influence of three fertilizer structures on the status of nitrogen, phosphorus and potassium in paddy soil derived from red earth was studied.
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。
Under the same soil drought status, leaf water potential under high nitrogen level was lower than that under low nitrogen level.
在相同干旱胁迫下，低氮处理的叶水势高于高氮处理的叶水势。
Relationship between canopy reflectance characteristics and plant water status under different water and nitrogen levels was studied.
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。
The dry matter partitioning indices of green leaf, stem and pod varied with the physiological development, and were influenced by the genotype, sowing date, nitrogen level and water status.
各器官干物质分配指数随着生理发育时间而变化，基因型、播期、氮素及水分水平影响各器官干物质在地上部分配的大小。
Use the SPAD-502 chlorophyll meter to rapid, on-farm analysis crop chlorophyll status and nitrogen fertilizer recommendation.
利用叶绿素仪SPAD- 502进行田间快速测定，并对作物进行氮肥推荐。
The characteristics and status and transfer law of soil and water loss and nitrogen and phosphorus loss in the mesa areas of Dianchi lakeside are analyzed.
研究分析了滇池沿岸台地的水土流失和氮、磷流失的特征、形态、迁移规律。
Present status of push slab for sintering soft-magnetic ferrites in nitrogen kiln are introduced in this paper. In addition the key problems to be resolved for producing push slab were discussed.
介绍了我国软磁铁氧体烧结氮窑用推板的生产使用情况，讨论了实现软磁铁氧体烧结氮窑用推板国产化亟待解决的关键问题。
Liquid nitrogen was spurted until freeze-thaw status in group A, and the ramnant skin lesion needed for other treatments, but no more than 3 times.
A组用液氮点喷的方法，以冻融为度，未完全消除者可重复治疗，直至全部脱落，经过3次治疗未能完全消除者停止治疗。
Liquid nitrogen was spurted until freeze-thaw status in group A, and the ramnant skin lesion needed for other treatments, but no more than 3 times.
A组用液氮点喷的方法，以冻融为度，未完全消除者可重复治疗，直至全部脱落，经过3次治疗未能完全消除者停止治疗。
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