查询词典 winter fallow

On the basis of long-term experiment, changes in soil organic C, N and dynamics of soil NO〓-N of cropping systems were investigated in gully area of the Loess Plateau by means of analysis of the 15-year soil samples, crop yield in following crop systems: 1 continuous winter wheat with unmanured , nitrogen, organic manure , phosphorus and organic manure , nitrogen and phosphorus , nitrogen, phosphorus and organic manure , 2 continuous alfalfa, 3 pea-winter wheat rotation, winter wheat-sainfoin rotation, and 4 bare fallow. A model was developed according to the organic C dynamics, and was tested by the long-term experiment.

本文以中国科学院长武试验站的长期试验（始于1985年）为依托，通过对典型处理8-15年的土壤养分、作物产量以及同期降水量等的系统分析，揭示了黄土旱塬区不同种植体系中土壤有机碳、氮的演变规律；阐明了长期施肥条件下土壤硝态氮的迁移积累机理；提出了目前水肥条件下黄土旱塬区冬小麦生产潜力及其提高途径。

Effect of crops on soil moisture was in the order: continuous alfalfa＞continuous winter wheat＞bare fallow.

不同作物对土壤水分含量的影响强度顺序为：苜蓿＞小麦＞休闲地。

Land left in bare fallow to be sown with winter crops sustained losses that far exceeded the rate of new soil formation .

留作播种冬季作物的休耕地所经受的土壤流失远远超过土壤生成的速率。

Land left in bare fallow to be sown to winter crops sustained losses that far exceeded the rate of new soil formation.

留作播种冬季作物的休耕白地所经受的土壤流失远远超过土壤生成的速率。

They left the land fallow during the winter, and spray out millets onto the land before farming for the incoming year. For this to hope God of Millets and God of Land to bring them a abundant harvest and safety for the incoming whole year.

邹族早期以农猎为生，在寒冬时期通常因气候关系而休耕，所以在新的一年来临开始耕作之前，就会以洒小米种的方式，祈求粟女神和土地神佑助一整年的丰收与平安。

Compared with the original soil in soil under no-tillage and ridge culture, while there is almost no increase in soil under no-tillage and fallow in winter treatment.

对自然免耕的研究表明：经过11年的定位试验，土壤有机质含量迅速提高，增幅甚至达90.0％和88.3％，而冬水免耕处理的土壤有机质的增幅不大。

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。

Fallow lands of winter wheat in the southern part of loess plateau with an annual precipitation of 632mm were selected as the study object, Field and lab experiments were carried out during two wheat growth periods to investigate the correlations between N2O emissions and its influential factors, quantitative model and energy characteristics.

本研究以年均降水量为632mm的黄土高原南部旱作区冬小麦—休耕地土壤为对象，通过两个小麦生长年度不同处理的大田试验和相应的室内实验，对土壤N_2O排放量及其与影响因子的关系、定量模型和能量特征进行了系统研究。

Current status and principal problems concerned in the production of biodiesel from rapeseed oil in China and other countries were introduced, based on which it was proposed to grow high-erucic acid rape in existing winter fallow fields and jointly produce biodiesel, erucic acid and its derivative products, and other highly valuable by-products such as glycerin and sterols from high-erucic acid rapeseed oil.

在介绍国内外菜籽油制备生物柴油产业发展现状和存在的主要问题的基础上，提出了利用现有冬闲田生产高芥酸油菜籽，以高芥酸菜籽油为原料联产制备生物柴油、芥酸及其系列衍生产品和甘油、甾醇类化合物等高值副产品对策，并从产品用途与市场需求潜力、企业经济效益、生产技术和条件、原料来源等几方面分析了这一发展对策的可行性。

There are mountains up "Mountain Spirit Land tablets," to do "teeth Festival" put winter fallow wild cattle, playing the "Wang Tong," knock off as early as late labor, the Early-war Japan, when the evening making war, kin helpers and other production practices; Spring Festival during the Kitchen God Festival, entry-year sector, to eat,"reunion dinner", issued to the child,"New Year's money," worship the gods, New Year's Day "open door", the second day,"Xu God", the beginning of the three,"free money" such as customs.

有上山立&山神土地神位&，做&牙祭&，冬闲牛放野，打&横塘&，早出工晚收工，早造争日、晚造争时，亲邻帮工等生产习俗；春节期间有送灶神、入年界、吃&团圆饭&、给小孩发&压岁钱&、祭拜神明、年初一&开大门&、年初二&许神&、年初三&送穷&等习俗。

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。