论文部分内容阅读
二氧化碳饥饿是保护地蔬菜生产中的突出问题之一。齐齐哈尔市农业局等单位,在三年间试用钢瓶液态二氧化碳,通过风带定量释放施肥,对大棚黄瓜有促熟、增产的作用。施1200ppm浓度(占大气含量)处理的黄瓜产量,比对照增产14.7—35.9%,达极显著水平;600ppm和1500ppm浓度处理的产量,比对照增产显著,特别是对黄瓜前
Carbon dioxide starvation is one of the outstanding issues in vegetable production in protected areas. Qiqihar City Bureau of Agriculture and other units in a three-year trial liquid steel cylinder of carbon dioxide, through the wind with a quantitative release of fertilizers, greenhouses have curative effect of greenhouses and increase production. The yield of cucumber treated with 1200ppm concentration (atmospheric content) increased 14.7-35.9% compared with the control, reached extremely significant level; the output of 600ppm and 1500ppm concentration increased significantly than the control, especially before cucumber