在西北农林科技大学的著名农业专家李立科的支持研究下,一种改变传统耕作模式,集秸秆还田、播种、施肥、除草等性能为一身的农业机械面世,使农民在收获庄稼之后,不必再为割茬、耕地而烦恼。我国旱地农业传统的“铧式犁”耕作方式,易使土壤受到水侵风蚀。由陕 Under the support of Li Like, a well-known agricultural expert at Northwest A & F University, an agricultural machinery that changes the traditional farming mode and integrates the performance of straw returning, sowing, fertilizing and weeding has been introduced to enable peasants not to have to harvest the crops And then cut the stubble, farmland and worry. China’s traditional agricultural dry land farming “plow” farming methods, easy to make the soil water erosion wind erosion. From Shaanxi