春玉米/秋大豆+晚稻秧苗的旱育秧技术初探

来源 :浙江农业科学 | 被引量 : 0次 | 上传用户:jishunhui
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利用山区丰富的旱地资源, 在春玉米宽行套播秋大豆+ 晚稻秧苗, 所育成的晚稻秧苗具有一般旱育秧的秧苗素质, 明显优于两段秧, 表现矮壮, 单株带蘖多, 根系发达, 活力强, 秧龄弹性大, 移栽后不败苗, 分蘖能力强, 有效穗数多, 比两段秧增产6.88% 。该技术具有省工、省力、省本的特点, 能提高耕地利用率, 综合效益明显。其主要技术是: 适期早播, 比两段秧提早2~3 d; 控制播量, 稀播匀播, 播种量10 g/m 2 (干谷); 选择苗床, 防春玉米遮荫, 以带距2.0 m ,其中空带1.6~1.7 m 为好, 播种时要保持种子与春玉米植株间30 cm 距离,春玉米授粉结束后及时摘除雄穗; 烯效唑浸种或多效唑拌种; 苗床洒透水, 播后盖栏肥保湿; 防治病虫害, 尤其要注意防治地下害虫以及草害、鼠害; 移栽后管理重点是控制无效分蘖, 提高成穗率。 The use of abundant dry land resources in mountainous areas, broad-sowing autumn soybean and late rice seedlings in spring maize, the bred late rice seedlings have the seedling quality of general dry nursery seedlings, which is obviously superior to the two-stage seedlings, showing short and strong, Roots developed, strong vitality, elasticity of seedling age, undefeated seedlings after transplanting, tillering ability, the effective number of spikes, yield more than 6.88% of two plants. The technology has the characteristics of labor-saving, labor-saving and provincial capital, can improve the utilization rate of arable land, and has obvious comprehensive benefits. Its main technology is: early sowing of suitable period, 2 ~ 3 d earlier than two seedlings; controlling the amount of sowing and sowing even sowing, sowing amount of 10 g / m 2 (dry valley); selecting seedbed, With a distance of 2.0 m and a hollow belt of 1.6-1.7 m, the distance between the seeds and the spring maize plants should be maintained at 30 cm. The tassels should be removed in time after the pollination of spring maize. Or paclobutrazol seed dressing; Seedling seedlings were sprayed with water and the cover was covered with fertilizer to make it moisturized; pests and diseases should be prevented and controlled; especially, pest control and pests and rodents should be taken care of; the key management after transplanting was to control ineffective tillers and increase the percentage of ear to ear.
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