查询词典 terrace cropping

The results showed that: The continuous cropping with cotton have a great influence on various physical properties.

结果表明：棉花连作对其土壤各种物理性状产生了较大的影响。

What is the maximum value you can enter for page size cropping?

什么是最大值中你能报名参加收成的页面大小吗？

Cinnamic acid was applied in the fifth continuous cropping cucumber soil as root exudates.

模拟黄瓜根系分泌物苯丙烯酸，外加于已连续种植5茬黄瓜的土壤中，种植黄瓜。

The dacite cropping out at Jilusu on the northern margin of Qaidam basin has lots of adakitic features: SiO263.7%~64.3%, Al2O315.07%~15.27 %, MgO 3.47%~3.72 %, K2O/Na2O ratio is about 0.14~0.25, Y and Yb are both low: Y is 17.82×10-6~18.10×10-6, 17.96×10-6on average, and Yb is 1.47×10-6~1.55×10-6, Sr is high (527×10-6~537×10-6), HREE is depleted and Eu and Sr negative anomalies are relatively weak, but the content of MgO is higher than that of the typical adakite in the world.

在柴达木北缘吉绿素滩间山群火山岩中发现埃达克质英安岩，其主要地球化学特征如下：SiO26 3.7%～ 6 4.3%，Al2 O3 15 。0 7%～ 15 。2 7%，MgO 3.47%～ 3.72 %，K2 O/Na2 O 0 。14～ 0 。2 5 ，Y和Yb含量较低，Y为17.82× 10 -6～ 18.10× 10 -6，平均 17.96× 10 -6，Yb为 1.47× 10 -6～ 1.5 5× 10 -6，Sr含量较高，为 5 2 7× 10 -6～ 5 37× 10 -6，亏损HREE ，具弱负Eu和Sr异常。

Potassium-magnesium fertilizer contained a large number of calcium into the soil, but also play a role in disinfection, will be reduced as a result of continuous cropping and land compaction caused by bacteria, such as increasing the hazards of cotton, also contained potassium magnesium manganese fertilizer can reduce damping-off , and Verticillium wilt incidence, Mo can enhance the ability of cotton resistance to Verticillium wilt; and management of salinity through the potassium-magnesium fertilizer to improve the ecological balance of the soil environment, absorption of nutrients and more robust plants, their resistance to strong and difficult illness.

钾镁肥中所含的大量钙元素进入土壤后，也起到消毒作用，会减少由于重茬和土地板结等造成病菌增多对棉花的危害，同样钾镁肥中所含的锰可减少立枯病、黄萎病和枯萎病的发生，钼还能增强棉株抗黄萎病能力；而且钾镁肥通过治理盐碱，改善土壤生态平衡环境，吸收的养分多，植株健壮，本身抗逆性就强，不易生病。

Compared with hole-planting, the cropping pattern of row-planting was in favor of germination and tiller of banana dasheen, and was beneficial to the improvement of permeating conditions and physicochemical properties of soil, so as to increase banana dasheen yield.

结论］行栽的种植模式较窝栽有利于芭蕉芋的萌发和分蘖，有利于改善土壤的通透条件及理化性质，从而增加芭蕉芋的产量。

With 6 banana dasheen varieties in local places and from other provinces as tested materials, the plot comparative test was carried out by using cropping patterns of row planting and hole planting to observe the growth status of each variety.

方法］以6个地方和省外芭蕉芋品种为试材，采用行栽和窝栽种植模式进行小区比较试验，观察各品种的生长情况。

Based on the analysis of the experimental data obtained of north Ying-shan Mountain Range, the paper puts forth some approaches, with respect totillage, rotational cropping and fertilizers, in the improvement of rainfallwater utilization in dry-land farming.

本文是作者根据近年来在内蒙古乌兰察布盟北部(年降水量约300毫米左右)地区，通过加强田间管理、耕作施肥、种植绿肥压青等措施，有效地提高了对当地农业降水资源的利用率，并探讨了一些新的途径。

His considerable erudition keeps cropping up,and this can be disconcerting.

他那相当丰富的学识不断地显露出来，这会令人不安，他以前决不是一个卖弄自己的人。

His considerable erudition keeps cropping up, and this can be disconcerting.He was never one to wear his learning lightly.

他那相当丰富的学识不断地显露出来，这会令人不安，他以前决不是一个卖弄自己的人。

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。