论文部分内容阅读
多功能棚膜在春大棚上应用效果分析１００１０１北京市农业技术推广站曹之富王育针对以往的冬春季保护地蔬菜生产用膜品种较少，性能单一等问题，我站于１９９７年春在尹家府乡多种经营公司基地进行了七种不同棚膜的试验。一、试验简况供试棚膜分别为华盾聚乙烯防老化农膜...
Application of multi-functional greenhouse film in the spring effect analysis 100101 Beijing Agricultural Technology Extension Station CAO Zhi-fu WANG Yu For the past winter and spring vegetable production in the field with fewer membrane varieties, single performance problems, I stand in the spring of 1997 in Yin House Township diversified company base carried out seven different greenhouse film test. First, the test profile for test film respectively Huadun polyethylene anti-aging agricultural film ...