1) tian also had abdominal
过腹还田
2) Mulch
[英][mʌltʃ] [美][mʌltʃ]
还田
1.
Study on Working Parameters of Knife Roller of Field Straw Chopper for Mulching or Reclaiming;
秸秆粉碎还田回收机刀辊工作参数的研究
2.
Carries on performance test in the cotton field to Straw Chopper for mulching or reclaiming,designated the stubble height,the straw smashing length and the throwing distance to take the main performance index.
在棉田对秸秆粉碎还田回收机进行机具性能试验,选定留茬高度、秸秆粉碎长度和抛送距离作为主要的性能指标,通过一系列正交试验和理论分析,用直观分析法和方差分析法揭示了影响秸秆粉碎还田机性能的主要因素。
3) Microtus ochrogaster
橙腹田鼠
1.
We conducted removal experiments in open populations of Microtus ochrogaster and M.
我们对美国伊利诺斯州中东部的蓝草和高草牧场共生的橙腹田鼠(Microtus ochrogaster)和草原田鼠(Microtus pennsylvanicus)开放种群进行了去除实验,以测定潜在的种间竞争。
2.
We studied responses of populations of Microtus ochrogaster and M.
本研究在美国伊利诺斯州中东部测定了中等食物质量(莓系属的牧草)和低食物质量(高杆草牧场)栖息地内橙腹田鼠(Microtusochrogaster)和草原田鼠(M。
4) returning farmland to lake
退田还湖
1.
Impact of "returning farmland to lake" works on ecological environment of Dongting lake;
退田还湖对洞庭湖区生态环境的影响
2.
Changes of soil particle composition and chemical characteristics after "returning farmland to lake" in the Dongting Lake area
退田还湖后洞庭湖区土壤颗粒组成和化学特性的变化
3.
Soil enzyme activities under different restoration modes after returning farmland to lake in Dongting Lake area
洞庭湖区退田还湖后不同恢复模式下土壤酶活性的变化
6) fertilizer efficiency of compost return to farmland
还田肥效
补充资料：还田
1.归还田地。 2.田里出产的东西再施用到田里去。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条