查询词典 fertilizer

In the seedling and joining stage of maize, the maize would enlarge and increased with the phosphatic fertilizer and potassic fertilizer input.

增施磷钾肥可以有效提高玉米苗期、拔节期的株高和茎粗；随着施氮量的增加，玉米变高，变粗，但差异不显著。

In order to provide theoretical basis and technological for high-quality and high-yield cultivation of a strong gluten wheat variety,Jimai 20,the experiment studied effects of the radio of nitrogenous fertilizer and potassic fertilizer on yield and qualitly of Jimai 20 under the field conditions with High-yield cultivation.

为了给强筋小麦品种济麦20优质高产配套栽培提供理论依据及技术支撑，在大田高产栽培条件下，研究了氮钾肥施用量及其配比对强筋小麦品种济麦20产量和品质的影响。

The effect of fertilizer application on the growth and development of summer maize and the absorption, distribution and remobilization of Nitrogen, Phosphorus, and Potassium were investigated in field-grown conditions from 1997 to 1998, as well as the response of photosynthesis to eco-physiological factors in the corn canopy caused by different fertilizer amounts were explored.

4.1.1 对土壤速效养分含量的影响 19-224.1.2 对植物养分含量的影响 22-234.1.3 对产量的影响 23-244.2.1 对土壤速效养分含量的影响 24-254.2.2 对植株养分含量的影响 25-264.3.1 氮素吸收动态 26-274.3.2 磷素吸收动态 274.3.3 钾素吸收动态 27-284.3.4 氮磷钾在植株中的分配和转移 28-304.4.1 氮素吸收动态 30-314.4.2 磷素吸收动态 31-324.4.3 钾素吸收动态 324.4.4 氮磷钾在植株中的分配和转移 32-34

The principal best management practices for Costa Rica are: a well drained soil or a good drainage system in the field (banana yield is hurt with only a few hours of oxygen depletion in the root zone), b adequate control of nematodes, c adequate control of black sigatoka and d a good fertilizer program which includes rates of fertilizer equal or higher than 300-300-600 kg/ha/year of N- P2O5- K2O split in 12 applications during the year.

这些最好的管理措施为： a ）良好排水土壤或田间良好排水系统（根区缺氧几小时就会损害香蕉产量）， b ）有效地防治线虫， c ）有效地防治香蕉叶斑病和 d ）良好的施肥计划，施肥量等于或高于300-300-600公斤 N - P2O5- K2O /公顷/年，一年中分12次施入。

The plant that winter blossoms is like melon leaf chrysanthemum, sowbread, poinsettia, wintersweet to be in early autumn it is nutrient growth period, should apply the fertilizer that nitrogenous fertilizer of in order to gives priority to.

冬季开花的植物如瓜叶菊。仙客来。一品红。腊梅在早秋是营养生长期，应施用以氮肥为主的肥料。

The "hairing" phenomenon on highN compound fertilizer is for urea being changed into a kind of acicular subtransparent substance on the surface of compound fertilizer granules under the interation of temperature gradient and moisture.

剖析了高氮复合肥&长毛&结块的原因，主要是由溶解度较大的尿素在温度梯度和水分的作用下，在复合肥颗粒表面逐渐生成的一种针状放射型半透明体所引起。

The progress in the application of polyaspartic acid and its derivatives in scale inhibition,viscosity reduction,fertilizer synergism and super-absorbing networks were described in this article. polyaspartic acid ; synthesis ; scale inhibition ; viscosity reduction ; fertilizer synergia ; water-absorbing resin

聚天冬氨酸可以改变钙盐的晶体结构，是一种优良的阻垢分散剂，用于循环冷却水系统、锅炉及油气田水处理[1～3]；聚天冬氨酸具有良好的降粘作用[4]；聚天冬氨酸作为肥料增效剂，能促进植物生长[5，6]；它还具有优良的保湿性能，用于日用化妆品和保健用品的制造[7]；由聚天冬氨酸可制备高吸水树脂[8～10]；另外，由聚天冬

Nitrogen forms in compound fertilizer affected biomass accumulation of maize too,and the highest dry weight of shoot and root was found in the plants supplied with compound fertilizer containing 100% urea nitrogen in Udic Isohumisols,and mixed nitrate and ammonium in Udic Cambosols.

生长45 d玉米苗的地上和地下部的生物量，在黑土上均以全酰胺态氮的配方最高，地上部干重较其他配方增加10%左右；而在潮土上则以铵态氮与硝态氮配方的效果最好，铵态氮和酰胺态氮混合的配方在2种土壤上均较差。

In order to protect domestic farm fertilizer needs such as ureal, Mono-ammonium phosphate fertilizers export duties levied on seasonal, continue to compound fertilizers sections to impose special export duty chemical fertilizer.

为保障国内农业生产用肥的需要，继续对尿素、磷酸铵等化肥征收季节性出口关税，继续对复合肥等部分化肥征收特别出口关税。

Still have, grow in its in development process, if discover blade is shown lilac produce curly phenomenon, show excess of nitrogenous fertilizer employ, answer right now decelerate little dose or extend fertilization time; And blade is shown virescent make clear devoid nitrogenous fertilizer again, answer to increase dose appropriately.

还有，在其生长发育过程中，假如发现叶片呈淡紫色并产生卷曲现象，就说明氮肥施用过量，此时应减速少施肥量或延长施肥时间；而叶片呈淡绿色则又表明缺乏氮肥，应适当增加施肥量。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。