查询词典 winter fallow

The advantages and disadvantages were contrasted among five culture modes (conventional culture, no-tillage and fallow in winter, no tillage and ridge culture, no-tillage and box culture, and the rotation of paddy and upland).

土壤中的可溶性碳含量极少，存在季节性变化，春季表现出明显的数量优势，夏季和冬季、秋季和夏末秋初差异不明显，出现上高下低、免耕高于其余处理的规律。

The balance couldn't arrive yet at year of 2040 in soil of no-tillage and ridge culture while it will come at low value in the year of 2010 in soil of conventional tillage and soil of no-tillage and fallow in winter.

垄作免耕处理在预测的50年内（2040年）有机质积累未达到平衡；常规耕作和冬水免耕最先在较低水平上到达平衡。

For example, the micro biomasses are higher and change fiercely in the ridge or furrow soil of the no-tillage and ridge culture treatment while keep lower and change less during the measured year in soil of conventional tillage treatment and no-tillage and fallow in winter treatment.

如垄作免耕的微生物生物量数值无论在下层或上层土壤中均较高。常规耕作、冬水免耕处理全年的微生物生物量量及变幅均较小。

Among 3 rice based cropping systems,the total S contents of plough layer in the treatment of rice rice flooded fallow in winter were the highest;those in the treatment of rice rice green manure came the second;those in the treatment of rice rice rape were the lowest.

结果表明，不同稻作制间，耕层土壤全硫含量以稻-稻-冬泡最高，稻-稻-冬绿次之，稻-稻-冬油最低；有效硫含量则以冬绿处理最高，冬泡处理最低；不同有机肥施用水平之间，耕层土壤全硫含量为常量有机肥处理最高，高量有机肥处理居中，化肥处理最低。

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。