【摘 要】
：
以“春丰60”甘蓝为试材,研究了防虫网覆盖对大棚内气象因子的变化、对甘蓝虫害的防控效果以及甘蓝生长和产量的影响.结果表明:在甘蓝生长季,防虫网棚内的平均温度和平均湿度
【机 构】
：
河北北方学院农林科技学院河北张家口075000河北省尚义县绿农植物医院河北尚义675750
【出 处】
：
2015全国农用塑料设施大棚、温室栽培技术交流会
论文部分内容阅读
以“春丰60”甘蓝为试材,研究了防虫网覆盖对大棚内气象因子的变化、对甘蓝虫害的防控效果以及甘蓝生长和产量的影响.结果表明:在甘蓝生长季,防虫网棚内的平均温度和平均湿度较对照分别高出0.66℃和1.55％,而网棚内的平均光照强度较对照降低6.02％,覆盖网棚为甘蓝生长创造了适宜的环境.覆盖防虫网完全阻止了菜青虫和棉铃虫对甘蓝的危害,且网棚内各时期蚜虫危害株率较对照降低幅度达82.5％～95.7％,对蚜虫的防效也显著.收获时甘蓝植株的各项生长指标均显著高于对照,且产量较对照提高9.2％.防虫网在冀西北坝上地区蔬菜生产中具有良好的开发、应用和推广前景.
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