查询词典 fertilizer divider

This paper studied the low efficiency of nitrogenous fertilizer of our county,the cause of fertilizer losing and its calamity.

本文主要探讨了目前我国氮肥利用率低下，肥料损失的原因及危害。

I am on the basin, the facilities of the oil cake fertilizer and potash fertilizer..

我是盆地，石油饼肥和钾肥的设施。。

1Nitrogen,phosphorus,and potassium fertilizer application amounts in Jiangsu province paddyfield in 1995 are 663,221,373 kg/ha,which is 3,2,4 times as much as those of same unitcultivated area in China,and 10,9,23 times as much as chemical nitrogen,phosphorus andpotassium fertilizer application amount in the world.

1995年全省稻田氮磷钾施用量分别为663、221、371公斤/公顷分别是我国同年单位耕地面积的施用量212、99.8、84.9公斤/公顷的3、2、4倍多，是世界单位耕地化学氮磷钾肥用量的10、9、23倍多。

Will adopt the form of inferior and provisional tax rate 2009, reduce the productivity raw material with partial home bigger demand to import custom duty appropriately, continue to carry out partial rolled steel cancels to export custom duty since December 1, 2008, adjust the chemical fertilizer such as urea exit is seasonal the policy of custom duty, the tax rate of special export custom duty that lowers partial chemical fertilizer and its raw material at the same time.

另一方面，根据国内市场供需变化情况，取消豆饼、猪肉、印楝油的进口暂定税率，恢复为最惠国税率。同时，为保障国内农业生产用肥的需要，继续对尿素、磷酸氢二铵等化肥出口征收季节性出口关税，继续对复合肥等部分化肥及其原料征收特别出口关税。二是支持高新技术发展，鼓励企业自主创新，推动产业结构升级，促进振兴国内装备制造业。

The results showed that 0.12% and 0.18% concentration of foliar fertilizer of nitrogen fertilizer in improving Philodendron andreanum ornamental value and commodity value has a good effect.

结果表明，0.12%和0.18%浓度的氮肥叶面喷施对提高喜林芋观赏价值和商品价值具有良好的作用。

In this study, Philodendron andreanum leaves become yellow and green in winter, Ornamental Value reduced as background, Study of foliar fertilizer of nitrogen fertilizer on the growth of new leaves and Ornamental leaves changes in leaf chlorophyll content and Electrolyte leakage.

佘波1，刘瑞霞1，张吉立21山西林业职业技术学院，太原030009；2大庆职业学院黑龙江大庆163255本试验以喜林芋越冬中叶片变黄绿，观赏价值降低为背景，研究叶面喷施氮肥对新生叶片生长以及观赏叶片叶绿素含量变化，电导率变化情况。

Through eleven years position experiments, we preliminarily found out the phosphor supply capacity of the soil and the fertilizer, and the variety of phosphor efficiency, and the effect of phosphor content, modality transformations and validity under different fertilizer supply measures in gray desert soil .

通过 11年定位试验，研究了灰漠土中土壤与肥料的供肥能力、磷肥肥效的变化，以及不同施肥措施对灰漠土磷素含量、形态转化及有效性的影响。

Placation organic fertilizer in soil significantly increased content of available phosphorus, and that of PMSW(P-enriched MSW fertilizer treatment) treatment was higher than others.

在植物生育(来源：ABce7cC论文网www.abclunwen.com)期内，无机磷的Ca_(2-)P，Ca_(8-)P，Al-P 的含量明显降低，并且两种供试作物作物的趋势相同。

By Visual Basic 6.0 program, taken the distance between hole 200mm and buried depth 120～150mm as the optimization goal, the most optimum parameters range of the mechanism was obtained as follows: the initial angle between planet frame and the line formed from spraying-fertilizer needle-tip and planet wheel axle was -45°～-40°, the initial angular displacement of planet frame was 40°～50°, the distance between spraying-fertilizer needle-tip and the planetary gear axle center was 280～300mm, simultaneously, the semi-major axis of elliptic gear was 29.364mm, the teeth quantity was 23, the ratio of semi-minor axes and semi-major axis was 0.958, the radius of circular gear was 25mm.

对该机构进行运动学分析，建立了数学模型，以穴距200mm和入土深度120～150mm为寻优目标，应用Visual Basic 6.0软件编程得出满足机构运动要求的最优参数范围为：喷肥针尖和行星轮轴连线与行星架的初始夹角-45°～-40°、行星架初始角位移40°～50°、喷肥针尖与行星轮轴心距离280～300mm，此时椭圆齿轮长半轴29.364mm、齿数23、短半轴与长半轴比0.958，正圆齿轮半径25mm。

Based on the water and fertilizer coupling experiment in corn field,one-dimensional soil moisture content model containing the water uptake corn roots is used in this paper to simulate the evapotranspiration and the water uptake of corn roots and the change of soil pondage and soil moisture budget under the different water and fertilizer coupling conditions in corn field.

结果表明：在玉米生长初期以棵间蒸发为主，其后则是以植株蒸腾为主；玉米在30～40 cm土层吸水速率达到最大值；玉米灌水量为田间持水量的70%与85%对土壤0～80 cm土层贮水量的贡献是相等的，并且高肥力在一定程度上可增强根系的吸水能力，高灌水可增强玉米根系对养分的吸收利用，但对于提高水肥利用率来说，理想的处理为中肥中水。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。