宁夏彭阳县秋季全膜覆盖双垄沟播玉米栽培技术要点浅析
저하팽양현추계전막복개쌍롱구파옥미재배기술요점천석
Analysis of Autumn Corn Cultivation Techniques of the Whole Covering on Double Ridges and Planting in Furrows in Pengyang,Ningxia