大豆新品种“苏豆9号”选育与栽培技术研究

A study on breeding and cultivation technology of new soybean variety Sudou 9

"苏豆9号"为东海县农业科学研究所经有性杂交,系谱法选育而成的新品种,具有早熟、高产、优质、抗倒伏、抗病性强,抗逆性强,适应性广等特点.2008—2010年参加江苏省区试,3年平均184.8 kg/667 m2,较对照徐豆13增产3.6%,2010年增产极显著.2011年生产试验平均177.5 kg/667 m2,较对照增产6.7%;2012年3月通过江苏省农作物品种审定委员会审定通过,适宜江苏省淮北地区作夏大豆种植.为探讨适宜播期,最佳种植密度和合理的施肥量,特设栽培试验,结果表明,苏豆9号最佳播种期是6月上中旬,在此范围内越早越好,最佳密度是1.4万株/667 m2,基肥用量以含氮、磷、钾45%复合肥20 kg/667 m2为宜.

＂Sudou 9＂ is a new variety improved through the sexual hybridization in Donghai County Agricultural Science Research Institute, pedigree method applied. This variety has the following characters： early maturity, high yield, high quality,lodging resistance, disease resistance, strong adverse-resistance, wide adaptability, etc. Having participated in the experiment planting in Jiangsu Province from 2008 to 2010, it had an average yield of 184.8 kg / 667m^2, with a 3.6% increase over Xu dou 13. Its production increased significantly in 2010. The average yield in 2011 was 177.5 kg/667m^2, with a 6.7% increase over Xudou 13. In March 2012, it was examined and approved by Jiangsu Provincial Agricultural Variety Examination and Approval Committee, suitable for summer soybean planting in Huaibei area, Jiangsu Province. To explore suitable sowing date,the best planting density and reasonable fertilizer rate, cultivation experiments were made. The result showed that the best sowing period is early to mid-June, the sooner the better in this scope. The best density is 14000 plants / 667m^2, with an advisable basal manure amount of 20 kg/667m^2 of 45% compound fertilizer containing nitrogen, phosphorus and potassium.