The study showed that culturing cucumber with film bag increased cucumber yield by 12.3%~15.1%,reduced abnormal cucumber by 65.3%~72.8%,and the shape of cucumber was straight and smooth.The keeping-fresh period of t...The study showed that culturing cucumber with film bag increased cucumber yield by 12.3%~15.1%,reduced abnormal cucumber by 65.3%~72.8%,and the shape of cucumber was straight and smooth.The keeping-fresh period of the cucumber prolonged to 20~25 days,its vitamin C increased 21.9%,and total sugar increased to 5.1%.Paper bagging increased cucumber yield by 7.2%~10.1%,and reduced abnormal cucumber by 52 2%~57.7%.Bag body could efficiently prevent the cucumber from the direct pollution of chemicals spray.The survival pesticides in film and paper bags was 0.760mg·kg -1 and 1.2208 mg·kg -1,reduced by 83 3% and 73 2%,respectively,compared to non-bagging.展开更多
在边坡覆绿技术中,生态袋覆绿技术是目前国内应用较普遍的一种,多年来该技术既有成功的案例,也有失败的教训,但无论成败都少见理论总结与原因探究。文章以河南焦作北部矿山边坡为研究对象,通过野外调查和室内实验的方式,对该项技术中生...在边坡覆绿技术中,生态袋覆绿技术是目前国内应用较普遍的一种,多年来该技术既有成功的案例,也有失败的教训,但无论成败都少见理论总结与原因探究。文章以河南焦作北部矿山边坡为研究对象,通过野外调查和室内实验的方式,对该项技术中生态袋的力学参数、填充基质、边坡坡度以及植物选择这4个方面进行探讨。认为该技术主要适用于以下条件:边坡坡度≤63°的范围内,边坡治理效果较好;降雨入渗系数>0.36的生态袋较易满足施工需要;狗尾巴草(Setaria viridis(L.)Beauv.)、狗牙根(Cynodon dactylon(L.)Pers.)、高羊茅(Festuca elata Keng ex E. Alexeev)可作为该种技术在北方地区施工的备选物种。展开更多
文摘The study showed that culturing cucumber with film bag increased cucumber yield by 12.3%~15.1%,reduced abnormal cucumber by 65.3%~72.8%,and the shape of cucumber was straight and smooth.The keeping-fresh period of the cucumber prolonged to 20~25 days,its vitamin C increased 21.9%,and total sugar increased to 5.1%.Paper bagging increased cucumber yield by 7.2%~10.1%,and reduced abnormal cucumber by 52 2%~57.7%.Bag body could efficiently prevent the cucumber from the direct pollution of chemicals spray.The survival pesticides in film and paper bags was 0.760mg·kg -1 and 1.2208 mg·kg -1,reduced by 83 3% and 73 2%,respectively,compared to non-bagging.
文摘在边坡覆绿技术中,生态袋覆绿技术是目前国内应用较普遍的一种,多年来该技术既有成功的案例,也有失败的教训,但无论成败都少见理论总结与原因探究。文章以河南焦作北部矿山边坡为研究对象,通过野外调查和室内实验的方式,对该项技术中生态袋的力学参数、填充基质、边坡坡度以及植物选择这4个方面进行探讨。认为该技术主要适用于以下条件:边坡坡度≤63°的范围内,边坡治理效果较好;降雨入渗系数>0.36的生态袋较易满足施工需要;狗尾巴草(Setaria viridis(L.)Beauv.)、狗牙根(Cynodon dactylon(L.)Pers.)、高羊茅(Festuca elata Keng ex E. Alexeev)可作为该种技术在北方地区施工的备选物种。