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一、试验目的:根据1976年全国玉米杂交种优势利用研究协作会议的计划,今年我所参加北方夏玉米协作区,中熟组联合区域试验,以期鉴定出玉米杂交种的适应性和丰产性能,为我市春玉米良种的推广提供依据。二、试验材料: 三、试验方法: 1.田间设计:采用随机区组排列,重复三次;五行区,行长30尺,小区面积0.05亩,收获面积0.05亩,株行距1尺×1.8尺,每亩3333株。 2.试验条件:试验地为重壤土,地势平坦,肥力中等,底肥为大粪干3000斤/亩。5月8日开沟条播,5月26日定苗,6月上旬打权,5月15日、6月7日两次中耕,6月22日培土一次,6月22日用二嗪农颗粒剂治玉米螟一次,8月24日收获。 3.生育期气象概况:生育期内(5—8月)
First, the purpose of the experiment: According to the 1976 National Maize Hybrid Advantage Research Synergy Conference plan, this year I participated in the northern summer corn cooperation area, Zhongshu group joint regional trials to identify the maize hybrids adaptability and high yield performance, Provide the basis for popularizing the spring corn varieties in our city. Second, the test materials: Third, the test method: 1 field design: randomized block arrangement, repeated three times; five elements, the governor 30 feet, plot area of 0.05 acres, harvesting area of 0.05 acres, spacing of 1 foot × 1.8 feet, 3333 per mu. 2. Test conditions: The test for the heavy loam, flat terrain, medium fertility, the base fertilizer for the large manure 3000 kg / mu. May 8 ditching sowing, May 26 Dingmiao, the right to fight in early June, May 15, June 7 twice in cultivation, soil June 22 once, on June 22 with diazinon granules Corn borer treatment once, August 24 harvest. 3. Meteorological period of growth: growth period (May-August)