查询词典 dry farming

And the traditional plough-rake-harrow farming system for dry land was formed.

魏晋南北朝时期北方农业的进与退为网络搜集整理，原创性较弱。

Nitrogen leaching to the groundwater is one of the major nitrogen loss ways in dry land farming systems,and contributes to a large extent in groundwater pollution.

渗漏流失是旱地农田氮素流失的主要途径之一，也是引起地下水污染的重要原因。

Protection of the world to promote better farming techniques dry large agricultural country such as the United States, Australia and other countries in the no-tillage wheat seeder two major technologies, to address the anti-wheat no-tillage planter and so on.

目前世界上保护性耕作技术推广较好的旱作农业大国如美国、澳大利亚等国在小麦免耕播种机上主要采取两种技术，以解决小麦免耕播种机的防堵等问题。

Farm food products, dry field farming, so that the city kids to experience the hard field-work and food precious.

品农家美食，干田间农活，让城里孩子体验田间劳作的辛苦和粮食的珍贵。

Increased spending on research will be essential, especially into farming in dry-land conditions.

增加研究开支至关重要，尤其是在旱地耕作领域。

Fully raising rainfall use efficiency of farm-land is the basis of high efficient utilization to limited water in dry-land farming.

充分提高农田降水利用效率是旱地农业中有限水高效利用的基础。

2Nd International Symposium. on Soil Erosion and Dry-land Farming

2-4 Oct。 2006 第二届土壤侵蚀与旱地农业国际学术讨论会

The northern half of China has less than 20 per cent of the nation's water, yet is home to more than 40 per cent of the population, much industry and over 50 per cent of arable land, according to dry-land farming expert Shan Lun, an academician of the Chinese Academy of Engineering.

中国工程院院士、旱地农业生理生态学家山仑说，华北拥有不到全国20％的储水量，却居住着超过全国40％的人口，是国家重要的工业基地，还拥有超过全国50％的可耕地。

Dry-land farming high efficient utilization comprehensive technical approaches

旱地农业；高效利用；技术途径

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。