最新山西小麦旱作技术及抗旱减灾经验P47PPT课件.ppt

山西小麦旱作技术及抗旱山西小麦旱作技术及抗旱减灾经验减灾经验P47P47目录目录n山西气候概况和今年旱情山西气候概况和今年旱情n旱地麦田抗旱保墒技术旱地麦田抗旱保墒技术n小麦垄盖沟播膜际精播技术推广情况小麦垄盖沟播膜际精播技术推广情况n抗旱减灾典型经验抗旱减灾典型经验http:/ 大行距大行距35cm小行距小行距15cm 垄高垄高10cmhttp:/ 万万有效分有效分蘖蘖个个无效分无效分蘖蘖 个个次生根次生根长度长度cm碾压碾压335.2702.41.84对照对照34664.32.22.83对比对比-1-0.8+5.72.0-1.01调查时间：2011.4.19http:/ 比上年比上年20112011年年 比常年比常年7-97-9月月278.48278.48312.9312.9261.9261.934.4234.425151生育期间生育期间119.4119.4（87.887.8）（52.2）137.5137.5（102.6102.6）（-35.6）（-50.4）101017.117.113.313.335.935.9-3.8-3.8-22.6-22.6111132320.20.214.514.5-31.8-31.8-14.3-14.312120 00 04.84.80 0-4.8-4.81 10 00.50.53.43.40.50.5-2.9-2.92 28.58.513.313.34.84.84.84.88.58.53 31.31.36 615.815.84.74.7-9.8-9.84 428.928.918.918.923.423.4-10-10-4.5-4.55 531.631.634.934.96 6373754.254.2 http:/ 初期初期起身起身 初期初期拔节拔节 初期初期孕穗孕穗 初期初期抽穗抽穗 初期初期开花开花 初期初期地膜地膜2.212.213.223.224.64.64.244.244.264.265.25.2露地露地3.13.13.273.274.84.84.264.264.30 4.30 5.45.4对比对比-7-7-5-5-2-2-2-2-4-4-2-2据观察记载，洪洞县地膜覆盖麦田比对照田播种推迟据观察记载，洪洞县地膜覆盖麦田比对照田播种推迟10天左右，返青却提早天左右，返青却提早7天，抽穗期提早天，抽穗期提早4天，生育进程提天，生育进程提前。前。http:/ 千粒重千粒重理论产理论产量量折亩产折亩产地膜地膜9.2634.129.840406.5345.5地膜地膜9.2827.829.740330.3280.7地膜地膜10.524.727.740273.7232.6地膜地膜10.128.928.640330.6281.0地膜地膜平均平均28.929.040335.2284.9露地露地9.2623.826.440251.3213.6比较比较+5.1+2.6083.971.3http:/ 910.110.110.910.9（1111月月3030日）日）ckck7 78.58.59.29.210.210.210.910.9返青期返青期宽幅宽幅5.85.86.56.58 87.97.99.49.4（2 2月月2727日）日）ckck5.65.66.46.48.38.37.77.79.29.2返青期返青期宽幅宽幅9.59.510.210.29.59.58.98.99.59.5（3 3月月7 7日）日）ckck9 99.79.79.39.39 99.69.6起身期起身期宽幅宽幅9.79.711.511.510.210.29.89.810.410.4（3 3月月2727日）日）ckck9.39.311.211.210.510.59.99.910.310.3拔节期拔节期 （4 4月月8 8日）日）宽幅宽幅6.66.69.39.38.78.79.79.710.110.1ckck6.46.49.19.18.98.99.79.79.99.9http:/ 5日调查日调查播期播期播播量量（kgkg）出苗期出苗期 基本苗基本苗露地宽幅露地宽幅9.269.2610.510.510.310.326.226.2露地常规露地常规9.269.2610.510.510.310.322.722.7http:/ 42.82.81.21.26.26.213113122.522.53.53.5露地常规露地常规3 32.32.30.70.76.16.190.890.820.220.23.13.1http:/ 5月月1616日测产）日测产）处理处理亩穗数亩穗数（万）（万）穗粒数穗粒数（粒）（粒）千粒重千粒重（克）（克）理论产量理论产量（千克）（千克）折亩产折亩产（千克）（千克）露地宽幅露地宽幅29.529.529.229.24040344.6344.6292.9292.9露地常规露地常规23.823.826.426.44040251.3251.3213.6213.6比较比较5.75.72.82.80 093.393.379.379.3http:/