In order to study deeply the technology of extruding straw and improve the performance of extrusion equipment, screw feeding device for chopped straw was developed, with its working properties tested.
为了深入研究秸秆膨化技术，完善膨化设备的功能，研制了秸秆螺旋喂料装置，并对其工作性能进行了试验研究。
The experiment was carried out in the field with three treatments i. e. conventional till (CT), non-till with retaining maize stubble (NT) and mulch-till with un-chopped maize straw mulch (MT).
采用田间小区试验，对覆盖免耕、留茬免耕和传统翻耕三种耕作方式下玉米不同生育期土壤温度、土壤含水量以及玉米蒸腾速率和净光合速率进行观测。
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