徐州地区常年播种稻茬麦200多万亩,占三麦播种面积的三分之一。这部分稻茬麦田,常因茬口晚,土质粘重,宜耕期短,加上整地播种季节雨量分布不均,整地播种质量差,烂种面积大,出苗晚,基本苗不足,穗数少,产量低而不稳。1980年秋播以来,稻茬麦区因地制宜改进播种方法,采取板茬机播、犁刀播、锨开沟播和小铲点播等多种板茬直播栽培技术,获得了较好的增产效果。据三年来15个点次的 Xuzhou perennial planting of rice crop more than 200 acres, accounting for one third of San Mai sown area. This part of the rice stubble field, often due to late crop stubborn soil, sticky, short period of appropriate farming, combined with land preparation season sowing uneven distribution of rainfall, sowing poor quality, rotten area, emergence late, lack of basic seedlings, spikes few , Low yield and unstable. Since the autumn broadcast in 1980, the rice stubble wheat improved the sowing methods according to the local conditions, and adopted the direct seeding cultivation techniques of stubble planting, coulter sowing, ditching sowing and small shovel sowing and so on, and obtained better yield increasing effect. According to 15 points in three years