一、对现行水稻栽培体系的分析二十多年来,我省水稻生产技术发展较快。五十年代末期,大部分稻田从直播转向育苗移栽。六十年代初,在普及良种同时,推广了塑料薄膜保温育苗,拖拉机水耙地,大垄栽培、畜力中耕除草等新技术,对保证农时,解决草荒、促进大面积均衡增产卓见成效。近年来,由于518—12手扶拖拉机 First, the analysis of the current system of rice cultivation For more than 20 years, rice production technology in our province developed rapidly. In the late fifties, most of the paddy fields shifted from live broadcasts to transplanting. In the early 1960s, while popularizing improved varieties, new technologies such as plastic film insulation and seedling raising, tractor water rakes, large-ridge cultivation and plow cultivating and weeding were popularized and they were effective in ensuring agriculture, solving the shortage of grass and promoting large-area balanced increase in output. In recent years, thanks to the 518-12 Walking Tractor