固氮蓝藻促长物质处理春小麦的研究
STUDY OF THE TREATMENT OF THE SPRING WHEAT WITH THE GROWTHPROMOTING SUBSTANCES FROM THE NITROGEN-FIXING BLUE-GREEN ALGAE
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摘要: 在黑龙江省海伦县连续三年用浓度1%固氮蓝藻促长物质浸种春小麦,能促进种子萌动,田间种子发芽率提高约18%以上;能促进种子根和芽的生长,田间出苗率可提高9-17.8%。三叶期用固氮蓝藻促长物质喷雾,对苗期生长有促进作用,对根系发育的效果特别显著,同时促进植株分蘖,增加分蘖数,提高成穗率及种子蛋白质含量。小麦增产5-10%。固氮蓝藻促长物质大面积(250亩)应用,国内外尚无先例。Abstract: In three successive years, seeds of the spring wheat were presoaked in the solution of growth-promoting substances (GPS) from nitrogen-fixing algae (1% in concentration) before planted in Hailun county, Heilongjiang province. The treatment accelerated germination of the seeds and growth of the roots and the plumules. Germination rate in the field was increased by over 18%. Seedling rate in the field was increased by 9-17.8%. Spraying with the solution at the three-leaved stage accelerated the growth of the seedling and significantly promoted the development of the roots. The treatment accelerated tillering and resulted in increased number of tillers, higher rate of spike and higher protein content in the seeds- The production was increased by 5-10%. This study represented the first field application by the GPS to a large area of 250 mu.
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