Farmers use nitrogen fertilizer (氮肥) to help grow bigger crops.
农民使用氮肥来帮助种植更大的作物。
The yield increased with certain nitrogen fertilizer.
适量增施氮肥使辣椒产量增加。
The effect of nitrogen fertilizer on accumulation of Pb differed with cultivars.
施肥对水稻植株铅积累的影响因品种而有差异。
The effect of potassium increased with increasing yield and nitrogen fertilizer.
钾肥效应随着产量和施氮量提高而增大。
In 2000, about 40 farmers across the state learned how to use nitrogen fertilizer more sparingly.
2000年，全国大约40名农民学习了怎样尽量少用氮肥。
He agrees that the acidifying effects of nitrogen fertilizer deserve more attention in China.
他同样认为，氮肥的酸化效果在中国应该引起更多的关注。
The influence of applying nitrogen fertilizer to nitrogen mineralization was studied in paddy soil.
对稻田土壤施外源氮对氮素矿化的影响进行了研究。
On the basis of the trend and forecast of nitrogen fertilizer pollution, some countermeasures are proposed.
根据氮肥污染趋势预测，提出了库区氮肥污染对策。
The growth rate and moving biomass of Kentucky bluegrass turf were affected by the quantity of nitrogen fertilizer.
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 tax design of nitrogen fertilizer was discussed by utilizing the external theory and the demand elasticity theory.
运用外部性理论和需求弹性理论，探讨氮肥税的设计。
Types of fertilizer with nitrogen fertilizer, per mu can be with human excrement urine thin 1500 ~ 2000 kg, 5 ~ 10 kg urea.
肥料种类以氮肥为主，每次每亩可施有稀薄的人粪尿液1500 ~ 2000公斤，加入尿素5 ~10公斤。
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 heat tube corrosion guards were developed to replace the tube corrosion guards used in small scale nitrogen fertilizer plants.
开发设计的热管式预腐蚀器，用于替代小氮肥厂原用的普通列管式预腐蚀器。
Sugarcane is an important sugar and energy crop. In sugarcane production, nitrogen fertilizer and water are two most important factors.
甘蔗是重要的糖料作物和能源作物，在甘蔗栽培中，氮肥和水分是两个最重要的因子。
The influence of application of organic and nitrogen fertilizer on the content of alkali hydrolysable N in fertilities soil was studied.
对设施土壤中长期施有机肥与氮肥对土壤中碱解氮含量的影响进行了研究。
Dennis Lindsay still recalls the day four decades ago when his father, an Iowa farmer, began using nitrogen fertilizer on the family's 160 acres.
丹尼·斯林德赛仍然记得四十年前的那一天，他父亲，一位爱荷华州农民，第一次在家160英亩地中使用氮肥。
The effect of nitrogen fertilizer on soil enzymatic activity and rhizosphere microorganisms of Yumai 49-198 root system was studied in this paper.
在大田高产栽培条件下，研究了不同施氮水平对豫麦49-198根际微生物和土壤酶活性的影响。
A key component in raising American corn yields in recent decades, nitrogen fertilizer, is more expensive in Africa than in the United States, Lynch says.
几十年来，美国玉米产量提高的关键是氮肥的利用，该肥在非洲的使用成本远比在美国的要高得多，林奇表示。
However, the contents of NH4 + -n in the Purplish clayey soil were significantly increased by water-logged incubation or by nitrogen fertilizer added.
而外加氮源或淹水处理对青紫泥nh4 +- N含量的提升作用则贯穿于培养试验的全过程。
Efficient genotypes and reasonable nitrogen fertilizer management are effective measures to increase nitrogen uptake and utilization efficiency in rice.
选用氮素高效基因型和合理的氮肥调控是目前提高水稻氮素利用效率的有效途径。
Effect and economical benefit of controlled-release nitrogen fertilizer application on late rice in different basic fertility of paddy soils was studied.
探讨了不同肥力水平水稻土与水稻控释氮肥对晚稻的应用效应及经济效益。
Applying nitrogen fertilizer at heading stage could enhance contents of total nitrogen, total soluble protein, free amino acids and free lysine in wheat grains.
抽穗期施氮肥可提高小麦籽粒的全氮含量、总可溶性蛋白质量及游离态氨基酸与游离态赖氨酸量等。
High relative humidity is one of main factors causing disease epidemic. Vertical mowing and rational application of nitrogen fertilizer can reduce the disease damage.
夏季高温高湿是导致病害流行的主要因素之一，垂直刈剪和合理施用氮肥可降低该病的危害。
The result showed: Among all examined fertilizers, the nutrient release rate of urea was the highest and that of controlled release nitrogen fertilizer was the lowest.
研究结果表明：控释氮肥养分释放速率最低、肥效最长，与尿素相比可改善运动场草坪的外观品质；
Nitrogen fertilizer mainly affected the winter wheat individual character and colony's structure , nitrogen had less affected on functional leaves than genetic factors.
氮肥主要影响冬小麦营养体个体形态特征和群体结构，对功能叶生理指标的影响程度远低于遗传因子。
So choosing and breeding maize variety of highly nitrogen fertilizer utilization rate based on different maize genotype is a positive and efficient measure to the problem.
针对这一情况，一种积极有效的措施就是根据玉米基因型存在差异而选育氮高效玉米品种。
So choosing and breeding maize variety of highly nitrogen fertilizer utilization rate based on different maize genotype is a positive and efficient measure to the problem.
针对这一情况，一种积极有效的措施就是根据玉米基因型存在差异而选育氮高效玉米品种。
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