查询词典 tillage

Future research needs to study the dynamics of the compaction problem to determine how frequent moldboard or deep tillage is needed.

将来需要研究紧实问题的动力学以确定需要几次有壁犁深耕。

A field experiment was conducted on loess farmland in Northwest China to test different conservative tillage systems, and to compare them with conventional moldboard plough practice in terms of their effects on runoff and soil erosion.

在黄土坡地建立天然降雨径流小区，采用翻斗式自动测试系统同步动态地监测降雨—径流的过程，试验研究了保护性耕作农田水土保持的效果和耕作、覆盖及压实 3种因素对农田水土流失的影响。

The effect of moldboard (30 cm deep) ploughing was compared with a subsoiler (45 cm deep) chisel (25 cm) plough and farmer's cultivator (10 cm deep) in 1983 and only the moldboard gave significant benefits over the cultivator (Khan, et al., 1986)(Fig.1 Effect of pre-monsoon tillage treatment on wheat yields).

马铃薯、蚕豆和蔬菜（Rouse和Stone，1980）、蓖麻、红小豆和珍珠小米（Reddy等，1983）以及中国种植的小麦Zhao等，1986）都报道过类似的结果。

Syzigachne was dispersed as negative binomial distribution, because of affections of environment including tillage, crop planting, fertilizer application, weed control, and other natural elements.

草在田间的空间分布型为负二项分布，其聚集的原因主要是环境的影响，包括人为的翻耕、作物种植、施肥、除草等及其它自然因素的作用。

To put the conservation tillage in practice in northeaster area of China and to realize the purpose of protecting water, soil, fertilizer and environment in dry farming and to speed the persistent development of agriculture .

为了在东北地区推广应用保护性耕作，实现旱区农业四保(保水，保土，保肥，保护环境)、促进农业可持续发展。

To put the conservation tillage in practice in Northeaster n Area of China and to realize the purpose of protecting water, soil, fertilizer and environment in dryfarming and to speed the persistent development of agriculture.

为了在东北地区推广应用保护性耕作，实现旱区农业四保(保水，保土，保肥，保护环境)、促进农业可持续发展。

Therefore, for the condition of our country can only be developed by no-tillage planter.

所以，适合我国国情的免耕播种机只能自行开发。

The results can provide theoretical basis for developing new no-tillage planter and selecting matching power.

研究结果为开发新型免耕播种机以及选择配套动力提供理论依据。

In recent years, because of the technologies of mechanized conservation tillage is promoted, the application of hill-drop planter is essential.

近年来，由于机械化保护性耕作技术的推广，穴播器的应用无疑是必不可少的。

Soil bulk density of Z treatment was gradually increased in three years, which was significantly higher than that of C treatment in 0~20cm soil layer. 2.2 Effects of tillage systems on soil moisture content There was significantly positive correlation between soil pondage and rainfall of the same period in R, H and Z treatments, and the correlation coefficient was higher than C, especially the H treatment, its correlation coefficient was 0.70**, which reached a highly significant level, and its soil water retention was better than C.

免耕模式土壤容重在0~20cm均逐渐增高，最终显著高于常规耕作模式。2.2耕作模式对土壤水分的影响 0~20cm土层旋耕、耙耕和免耕模式土壤贮水量与同期降雨量显著正相关，相关系数皆大于常规耕作模式，耙耕相关系数为0.70**，达到极显著水平，土壤保水性好于常规耕作模式。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。