查询词典 fertilizer

Once again, the MPP can be graphed against the level of fertilizer usage. Diminishing marginal returns indicate that the MPP curve will be downward sloping.

再说明一下，边际产量与肥料用量水平的关系可以用图表示，边际报酬递减表明边际产量曲线应该向下倾斜。

The paper indicts the present various kinds of the technologies of manufacturing the chloride-free potash fertilizer , especially K 2SO 4, and on the basis forecasts the future trend of studying and making K 2SO 4 in our nation.

介绍了当前我国无氯钾肥的生产现状及各种工艺，在此基础上展望我国硫酸钾生产和研究的方向，并提出一条新的路线———热复分解升华法制硫酸钾

Starting from the study of utility theory, the author researches the inflecting factors of famers' fertilizer application behaviors.

本研究从效用理论出发，研究农户施肥行为的影响因素。

The border effect and utilization rate of N fertilizer as base under wheat intercropped with spinach

鉴于氮肥施用对农田CH4排放的影响还有很大不确定性，室外盆栽试验于2 0 0 2年在南京农业大学实施。

The results were as follows:(1) The grain yield of wheat was significantly enhanced by P fertilizer and intercropping, while the one of intercropped maize was improved by both N and P fertilizers.

间作小麦增产的主要原因在于小麦具有明显地边行产量优势，在低氮情况下尤为如此，但是随着施氮量的提高，边行优势有降低的趋势

Aims Although maize intercropped with other species enhances utilization ef-ficiency of natural resources such as light, heat, water and fertilizer, which increases yields, it has caused great difficulty in cultivation.

具体表现为，在吐丝后10d，4个玉米品种叶片中的SOD和POD活性均有所提高或显著提高，ZD041和ZD958叶片中的CAT活性提高或显著提高，YY19和LD981变化不显著；4个玉米品种叶片中的MDA含量降低。

Nitrogen also increased the rate of wheat yield of intercropping single for Gao Yu, reflecting the presence of wheat intercropped with nitrogen from the beans to the transfer of wheat, resulting in intercropping conditions decreased the sensitivity of wheat to nitrogen fertilizer.

同时施氮增加小麦产量的幅度以单作高于间作，这反映了在小麦蚕豆间作体系中存在着氮素由蚕豆向小麦的转移，导致在间作条件下小麦对氮肥的敏感性下降。

As far as As far as i know, he invents a new kind of man-made chemical fertilizer.

据我所知，他发明了一种新的人造化肥。

When development agriculture irrigates, need to use many fertilizer and water.

发展农业灌溉时，需使用大量的肥料及水。

Of the nitrogen supplied as inorganic fertilizer is lost under two treatments, and 30% under FAR and 26% under RAR of which leaches to depths over 40 cm of soil profile. It is therefore necessary to understand whether leached nitrogen is utilizable by deep-rooted crops.

两种施肥处理均导致65%左右的氮素损失，其中习惯施氮和推荐施氮分别导致30%和26%的氮素淋洗到40 cm以下土层，为此有必要种植蔬菜后利用深根系粮食作物吸收土壤下层氮素来降低蔬菜生产对环境的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。