查询词典 crop

2According to the non-full irrigation experimental datum of spring wheat and flax in Liangzhou and Gulang city of Shiyang River Basin,calculating the crop water deficiency sensitive index or coefficient by using crop water production function models of Jensen,Blank,Stewart and Minhas.

依据石羊河流域凉州和古浪春小麦和亚麻非充分灌溉试验资料，利用现有的Jensen 、Blank、Stewart 和Minhas 水分生产函数模型求解作物的缺水敏感指数。

A setting sun casts a fiery glow over a crop duster spreading pesticides in a Brawley, California, field. In addition to controlling insects, bacterial diseases, and weeds, crop dusting can be used to apply fertilizers, delay fruit ripening, increase or decrease the number of fruit a plant produces, and defoliate plants to facilitate harvest.

翻译（转载请注明来自：国家地理爱好者网）：加州Brawley农场，喷洒农药的飞机在落日的映照下仿佛镀上一层金黄，除了能控制害虫，细菌性病害和杂草之外，还可以用来施肥，延迟果实成熟，增加或减少的水果产量，并且能够使植物落叶以方便收获。

Soil desiccation is one of the key factors to influence the sustainable development of crop production on the Loess Plateau of China. So it has a great significance for the sustainable development of crop production to research the form and recovery of the dry layer of soil.

黄土高原的土壤干燥化是影响粮食生产可持续发展的关键因素之一，研究土壤干层形成和恢复对该地区粮食生产的可持续发展具有重要意义。

Field irrigation experiment of different salt concentration is conducted for wheat,maize and sunflower with normal quota and leaching quota in this paper,and study on crop growth,accumulation law of dry matter above ground and crop yield of 3 crops.

在田间试验条件下，采用正常灌溉定额和淋洗灌溉定额2种灌溉水平，对小麦、玉米、葵花3种作物进行了不同灌溉水矿化度处理的灌溉试验，对3种作物的生长过程、地上部干物质积累规律、作物产量等进行了研究。

And the crop water requirement coefficients based on Chinese Evaporimeter and the Crop Coefficients Kc were estimated accordingly.

田间试验设置在灌水定额相同的情况下，灌水方式和灌溉水质(加入0，10和20%的地下咸水)对灌水沟中土壤剖面盐分累积和玉米产量及地下水位的影响。

The Necessity of water saving agriculture in the loess plateau of China is analysized,and main types of regulating soil water techniques are sumed up as follows:accumulating fertileness,crop rotation,intermittent fallowness of soil,drought resistant crop breeding, water saving ,run off agriculture and chemical methods.

分析黄土高原节水农业的必要性，总结出黄土高原农业调水技术主要有 7大类：培肥地力以肥调水，轮作倒茬调水，间隙休闲调水，抗旱育种调水，节水灌溉调水，径流农业调水，化学技术调水；指出在干旱、半干旱的黄土高原地区，利用农业调水技术是粮食增产增收的有效措施和必然趋

With the development of information technology and crop sciences, agricultural information technology has become a new field, in which crop system simulation is deeply and extensively involved.

农业信息技术是随着信息技术及农业科学的发展而出现的一个新兴科学领域，作物系统模拟则是农业信息技术领域的研究热点。

2 Liter to adapt small quantity of sample in the field of crop germplasm resources research and crop breeding.

2升的数字显示式小籽粒谷物容重器，以解决品种资源和育种研究工作中样品量少的需要。

In this article, research on crop-row detection was reviewed and the characteristics of field crop planting and its early growth information were described.

针对农田作物种植和作物早期生长的特点，为了检测作物行位置，提出了一种基于标记信息的Hough提取作物行方法。

These mysterious crop circles are actual events that have taken place in cereal crop field from all over the world and their origin is unknown.

这些神秘的麦田怪圈真实地出现在世界各地的麦田中，但原因却无人知晓。

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。