用大麦新品种扬农啤2号的优质高产配套栽培技术研究

Studies on Good Quality and High Yield Cultivation Measures of New Malting Barley Cultivar "Yangnongpi 2

本文通过对我院刚育成的扬农啤 2号大麦在不同密度、播期、施氮水平及氮肥运筹方式下的茎蘖动态、产量结构和籽粒蛋白质含量的差异性分析。结果表明 :扬农啤 2号作为优质啤麦种植的配套栽培技术应为 :适播期按排在 10月底至 11月初 ,基本苗在 2 70～ 30 0万 / hm2 ,行距在 18～ 2 0 cm ,施纯氮在 2 2 5 kg/ hm2 左右 ,氮肥运筹方式为基肥∶苗肥∶拔节孕穗肥 =7∶ 2∶ 1,产量一般在 6 75 0 kg/ hm2左右 ,籽粒蛋白质含量可控制在 11.5 %左右 ,千粒重在 4 2 .0

This article investigated the difference of the dynamics of tiller, yield components and protein content in grains of new malting barley cultivar 'Yangnongpi 2' under different level of planting density, Sowing date and nitrogen portioning. The result was listed as follows: (1) The cultivation measures: proper sowing date is between late of October and early of November, basic seedling number is (2.7-3)×10 6/hm 2, sowing space is 18-20cm, 225kg pure nitrogen is used in a hectare. The ratio of its distribution is 7∶2∶1 at stage of base fertilizer?seedling jointing and booting respectively. (2) The yield is about 6 750kg/hm 2, the protein content is about 11.5%, 1 000-grain weight is over 42g.