甜菜遗传单粒种大面积直播试验报告

通过精细整地，严控精密播种质量，使单粒包衣种子播在湿土上，播种深度为2．5—3．Ocm，获得80．8％的出苗率，每公顷保苗73350株，为高产群体结构。22cm等距播下的单粒种子出苗后苗间无争光、争水、争肥的欺苗现象，幼苗生长茁壮，较2对真叶间苗的多粒种幼苗的苗重增加88．5％，为高产奠定了良好的生育基础。本试验获得54．6t／hm^2的高额产量和18．56％的高合糖率。甜菜遗传单粒种大面积直播试验取得了成功，为甜菜高产高效生产开辟了新的技术途径。

Experimental report on direct seeding of sugarbeet monogerm variety

Through careful soil preparation, and strictly control the qulity of precision planting, so that sugrbeet monogerm varieties coated were sowed in wet soil, planting depth of 2.5 -3.0cm, the germination rate was 80.8%. The plants were 73350 per hectare, which was high - yielding population structure. Sugarbeet monogerm variety seedings with 22cm equidistant didn＇ t fight for light, water and fertilizer. Seedling growth was flourshing than multigerm variety seedling thinned out at two pairs of true leaf, seedling weight increased by 88.5 %, which lald the better foundation for high yield. Sugarbeet yield was 54.6% t/hm^2, and sugar content was 18.56% in this test. Large- scale direct seeding for sugarbeet monogerm varieties had succeed, this test opende up a new approach for sugarbeet production with high yield and quality.