甜菜遗传单粒种大面积直播试验报告

Experimental report on direct seeding of sugarbeet monogerm variety

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。

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.