中国稻田氮肥用量约占氮肥总消费量24%左右。
The Chinese paddy field nitrogen fertilizer dosage has consumed about 24% of the total nitrogen fertilizer usage.
特别是氮肥用量的增加具有提高钾肥边际产量的作用。
In particular, an increase in the amount of nitrogen applied has the effect of increasing the MPP of potash.
中国水稻氮肥用量占全世界水稻氮肥总用量的37%。
The nitrogen fertilizer dosage of the Chinese paddy rice occupied 37% of that of the whole world's.
氮肥用量是提高草地早熟禾草坪生长速率和修剪量的主要因素。
The growth rate and moving biomass of Kentucky bluegrass turf were affected by the quantity of nitrogen fertilizer.
试验结果表明：对烤烟产量起主要作用的是氮肥用量，密度与留叶数的互作。
The experimental results showed that nitrogen levels and interaction between the density and the number of reserved leaf were significant in yield.
采用田间试验研究氮肥用量对高淀粉玉米和普通玉米吸氮特性及子粒品质产量的影响。
Field experiment was carried out to investigated nitrogen absorption, quality and yield between high-starch and common com as affected by nitrogen application.
研究了不同氮肥用量、氮肥种类及施肥方法对粳稻直链淀粉含量和蛋白质含量的影响。
The factors including different content of nitrogenous fertilizer used- varieties of nitrogenous fertilizer and methods of fertilizing that influence the content of amylose and protein are studied.
前言：目的：探索种植密度和氮肥用量对西红花球茎产量的影响，更好地指导西红花生产。
Objective: To guide production of Saffron better, the effects of planting density and quantity of nitrogen fertilizer on bulb yield were investigated.
随着氮肥用量的适量增加，西芹产量明显提高，但对人体有害的成分NO3-N含量也随之增加；
The yields increase with the increasing of Nitrogen, but meanwhile, harmful NO3-N also increase.
以优质中筋专用小麦扬麦11号为试验材料，研究了氮肥用量对面条小麦淀粉性状及籽粒品质的影响。
Yangmai 11, a good medium gluten wheat variety suitable for preparing noodle, was taken as an experimental material to study the effects of nitrogen amount on starch properties and kernel quality.
结果表明：随着氮肥用量的提高，土壤剖面硝态氮累积量明显增加，其向土壤下层淋溶的程度也越严重；
The results show the amounts of NO3-N accumulation in the soil profiles and their extents to leach into the deeper soil layers are increased significantly as the nitrogen fertilizer usage increased.
以4个中晚熟水稻品种为材料，研究不同时期不同氮肥管理措施下植株氮素含量与氮肥用量及LCC值之间的变化关系。
In this paper, we analyzed the relationship between the nitrogen content and LCC value of rice plant in different periods under different management for 4 kinds of middle-maturing paddy rice.
得出了不同目标产量时的最佳氮肥用量与追施比例和对应于氮肥不同用量的最佳追施比例及理论产量的动态施肥模式的数学方程。
The mathematics equations of dynamic fertilization mode were set up to determine the rational N dosage and proportion of additional fertilizer for different production goals.
结果表明：在绿肥全部还田条件下，不同氮肥用量对烤烟株高、烟叶spad值、烟株干物质累积以及烤后烟叶产量、产值和化学成分均有一定的影响。
Results showed that nitrogen fertilization rate significantly affected tobacco plant growth, leaf SPAD value, dry matter accumulation, leaf yield, economic value as well as chemical components.
以优质强筋小麦济南17为材料，研究氮肥不同施用量、基追比和追氮时期对小麦籽粒产量和品质的影响，分析了产量与品质的关系。
Jinan 17. a strong gluten wheat, was taken as an experimental material to study the effect of nitrogen application methods on grain yield and quality.
在盆栽试验条件下，研究了氮肥不同用量和氮、钾配施对大青菜产量、品质和生理指标的影响。
Pot experiment was conducted to study the effects of nitrogen and potassium on the yield quality and physiology indices of garden sass.
本文在田间试验条件下探讨了氮肥品种、用量及不同基肥种类对包心菜硝酸盐累积及品质的影响。
In this study, the influences of different nitrogen fertilizer variety, nitrogen level and basal manure on nitrate accumulation and quality of cabbage were investigated in field experiments.
还研究了氮肥施用量对嫁接和自根黄瓜果实品质的调控。
Regulations of nitrogen levels on the quality of grafted cucumber and self-rooted cucumber were also studied.
在氮肥施用量相同时，基本苗增加，每穗粒数、蛋白质及其组分含量均呈下降趋势。
Grain number per spike, protein and its component contents decreased with the increase of basic seedling number at the same nitrogen application amount.
以不同品种春玉米为试验材料，研究氮肥施用量对春玉米子粒淀粉含量及淀粉合成关键酶活性的影响。
The effect of nitrogen dosage on starch content and key enzyme activity in composing starch in kernels of spring maize was studied.
及时露晒田，控制无效分蘖，后期严格控制氮肥的用量；
Timely exposing paddy field to sun, controlling ineffecient tillers and strictly controlling application of amount of nitrogen;
当前主要是控制氮肥施用量。
At present, controlling nitrogen application is the main measure.
供水量和氮肥施用量是影响农田硝态氮淋失的主要因素。
The water and nitrogen applications are the two main factors that affect the nitrate leaching on farmland.
氮肥的边际产量随着钾肥用量的增加而增加的现象说明，钾肥对氮肥施用的有效性具有积极的作用。
The increase in the MPP of nitrogen as potash application levels are increased is an indication of the positive impact that potash has on the effectiveness of nitrogen.
示范推广的结果表明：氮素长效增效剂的施用量不能超过氮肥施入量的8%，也不能低于6%。
Results shows: using measure of Long and Add Effect Pill of Wide Nitrogenous can not exceed 8% Nitrogenous Fertilizer and also low 6% one.
在盆栽试验条件下，研究了氮肥不同用量和氮、钾配施对大青菜产量、品质和生理指标的影响。
Pot experiment was conducted to study the effects of nitrogen and potassium on the yield, quality and physiology indices of garden sass.
芹菜叶绿素、硝酸还原酶活性和硝酸盐含量与氮肥施用量呈极显著的线性正相关。
Chlorophyll, NRA and nitrate content was positively related to the application quantity of nitrogen.
但化学肥料尤其是氮肥施用量过多，极易导致产品质量下降、环境污染等问题。
But the use of much fertilizer results in decreasing of quality and a series of serious entironment problems.
从第三季作物收获到第五季作物收获，残留硝态氮的增加量占这一时期氮肥施用量的比例高达51.6%。
The increase amount of residual nitrate N from third harvesting to fifth harvesting was 51.6% of the total amount of applied nitrogen during this period.
大豆随着氮肥施用量的增加，不仅抑制了大豆—根瘤菌的共生固氮作用，也给生态环境带来了不利的影响。
However, with the increasing of nitrogen fertilizer, it not only inhibits nitrogen fixation between soybean and rhizobium, but brings disadvantages to ecological environment.
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