straw stubble returning machinery  秸秆根茬切碎还田机

Crop straw returning  秸秆还田

ditch-burying straw returning  秸秆沟埋还田

fast decomposition straw returning machine  快速腐熟秸秆还田联合作业机

no-tillage with straw returning  固氮酶活性; 稻草还田免耕

Returning straw into field  秸秆还田

Returning straw into soil  秸秆还田

Returning straw to field  稻草还田

returning straw to field directly  秸秆直接还田

returning straw to land  秸秆还田

Returning straw to soil  秸秆还田

rice straw returning  稻草还田

Rice straw returning into field  稻草还田

Rice straw returning methods  稻秆还田方式

rice-straw returning  稻草还田

straw returning  稻草还田; 秸秆还田试验; 秸秆还回; 秸秆还田; 桔秆还田; 茎秆还田

Straw returning machine  秸秆还田机

Straw returning method  稻草还田方法

straw returning to field  稻草还田

straw returning to the soil  秸秆还田