查询词典 summer fallow

The results indicate that seasonal variations of CO2 emissions from cotton, fallow and winter wheat–summer corn rotation field are all remarkable.

结果表明，在作物生长季节内棉花地、休闲地和冬小麦/夏玉米地土壤CO2排放均表现出明显的季节变化规律。

Therefore, planting scallion in summer fallow period in greenhouse can meliorate obviously soil biological environment and growing fast leaf vegetables and sweet corn can reduce obviously the accumulation of nutrient in the soil and inhibit the formation of alkalization.

从本试验的结果来看，在温室夏季休闲期种植大葱可以明显改善土壤的生物环境，种植速生叶菜和甜玉米可显著降低土壤的养分积累，减缓次生盐渍化的形成。

Through development of multiple cropping to exploit the sunlight resources, thermal resources, water resources and soil resources of farmland in summer fallow period is very helpful for improvement of soil fertility and to prevent fie...

发展多熟种植，开发利用夏闲期农田光热水土资源，有助于改善农田土壤肥力、缓解农田生态系统退化、增加农区畜牧业饲料来源，实现农牧结合，增加农牧民经济收入。

Effect of water saving was studied under no-tillage with straw mulch, conventional tillage with straw incorporatedand conventional tillage on bare ground. The results showed that NTS increased soil water storage by 30.6 mm and 23.9 mm over CTS and CTB during summer fallow.

对免耕覆盖、秸秆还田和常规耕作在休闲期的节水效果研究表明：在夏季休闲期，免耕覆盖比常规耕作多贮水30.62 mm，比秸秆还田多23.91 mm；在冬季储水灌溉期间，可将储水定额从2 100 m3/hm2减少到600和975 m3/hm2。

Results indicated that under the conditionwhen there is lack of water in the soil, deep ploughing will lead to dec-rease yeild before sowing, deep ploughing will aggravate the dispellingof the soil water when the field is fallow in the summer.

旱地闭口过暑具有明显地保墒作用；耕层经常保持5—10厘米的细土或人工地表覆盖，可大大降低蒸发量，保墒效果显著，并对提高地温、增加土壤有效养分、增加小麦分蘖、促进根系发育、降低冻害、增加产量有明显作用。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了