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目前全省夏播花生已占花生种植面积的90％以上(包括油菜茬、大麦茬、麦垄套种和麦后直播等),生产上迫切需要早熟高产适于夏播的优良品种。豫花四号的育成,在很大程度上扭转了我省缺乏理想花生夏播品种的被动局面。为使该品种迅速在生产上发挥作用,我们与基层单位合作,对其高产潜力及产量结构进行了初步探讨。一、豫花四号的高产潜力 1992年,我们在新郑县新村乡吴庄村进行了豫花四号高产潜力研究,试验地面积1.4亩,沙壤土质,中上等肥力,前茬为小麦,麦播前亩施农家肥5000kg,尿素50kg作底肥。花生于5月12日播种,采用地膜覆盖,起垄穴播,平均行距33cm,穴距16cm,每穴2粒,每亩种植24000株;实收株数为
At present, summer planting of peanut in the whole province accounts for more than 90% of peanut planting area (including rape stubble, barley stubble, wheat ridge intercropping and direct seeding of wheat, etc.). It is urgent to produce premature and high yield suitable varieties for summer sowing in production. Yu flower on the 4th bred, to a large extent, reversed the lack of ideal peanut variety sowing the passive situation. In order for this variety to play its role rapidly in production, we collaborate with establishments to conduct a preliminary study of their high yield potential and yield structure. First, the high yield potential Yuhua IV In 1992, we Xinzheng County Village Wuzhuang Yuhua IV high yield potential of 1.4 acres of trial area, sandy loam soil, middle and upper fertility, the former crop of wheat, wheat Before sowing Farmyard 5000kg fertilizer, urea 50kg for the base fertilizer. Peanut sown on May 12, using mulching, Ridge Ridge sowing, the average spacing of 33cm, hole spacing 16cm, 2 per hole, planted 24,000 acres per acre;