查询词典 cropping

The objective of the experiment is to study the effect of garlic continuous cropping on rhizosphere soil microbial and enzyme activities.

研究大蒜长期连作对其根际土壤微生物数量和酶活性的影响。

In the more concentrated cultivation areas,especially in the condition of continuous cropping, Rehmannia foliage fungal diseases are more serious.These disease are spot blight,ring spot and dot disease.

在地黄种植较集中的产区，尤其是连作情况下，地黄叶片真菌病害愈严重，这些病害主要为斑枯病、轮纹病和斑点病。

Using the information obtained from the study of these normal variations of vertices near a sharp edge or a high curvature area of the target space to detect features.The watermarks embedded by using the method can be detected,to some extent,after such attacks as cropping, simplification,similarity transformation,and additive random noise applied on the watermarked point set model.

最后对已加水印的点集模型应用不同的攻击，比如剪切、简化和附加随在特征点附近嵌入水印信息机噪声之后，结果显示通过这种方案嵌入的水印，在某种程度上仍可以被检测到。

Comparisons are performed of climate resource availability, single-crop yield, the total yield, yield component, economic and ecoogical benefit between double-harvest and the triple-harvest cropping systems.

对三熟制与二熟制的气候资源利用、组分产量和产量结构进行对比，分析经济效益和生态效益。

Futuristic fabrics and space age influences have been cropping up the last few seasons and will continue to do so.

未来的风格和时空的影响在过去的几季就已经表现出来了，并且还将延续下去。

Faced with this less people and more development problems, Shuyang around the "efficiency of agriculture, farmers income," the theme, and vigorously develop modern high-efficiency agriculture, adhere to the "drive to highlight key points, in order to focus on promoting the overall situation", and identify advantages and characteristics to enlarge , and has formed flowers, trees, edible fungi, vegetables, rice and ecological quality of water birds, such as high-efficiency agriculture,"the six plates," a new pattern of production, including planting area of 36 mu, mushroom growing area more than 100 million square meters, vegetables multiple cropping area of 69 mu, live stumpage reserves amounted to 4.24 million cubic meters, the development of timber processing enterprises in 2324, in the HDF annual processing capacity of 1.6 million cubic meters, ecological waterfowl slaughter in the volume of more than 2200 million feathers.

面对这一人多地少的发展难题，沭阳围绕"农业增效、农民增收"这一主题，大力发展现代高效农业，坚持"以亮点带动重点、以重点推动全局"，找准优势，放大特色，已形成花卉、林木、食用菌、蔬菜、优质稻米和生态水禽等高效农业"六大板块"的生产新格局，其中花木种植面积36万亩，食用菌种植面积1亿多平方米，蔬菜复种面积69万亩，活立木蓄积量达424万立方米，发展木材加工企业2324家，中高密度板年加工能力达160万立方米，生态水禽年出栏量2200多万羽。

Some studies have been carried out on questions cropping up in suburbanization, such as hollow downtown areas.

对郊区化已经出现的问题，如中心城区空心化等方面作了一定的研究。

The join simulation model was tested with the experimented data of winter wheat - summer maize double cropping system in xinji.

氮素的吸收和分配模型考虑了水、氮供应、作物需氮量和各器官含氮量的影响。

At present,superhigh yield breeding of rice is a hot topic in cropping science of ...

目前超高产水稻育种已经成为稻作科学研究的一个热点。

Thrips and spiders in Shanyou63/Bt and Shanyou63/Ck in different cropping pattern, and their number changes have no significant difference.

由此可见，在1/5种植方式和1/10种植方式下，转基因水稻上靶标昆虫和其他主要害虫及天敌无显著影响。

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。