<正> 一、基质栽培槽结构栽培槽内径长5.3米、宽48厘米,地平线以下挖 V 字型沟,深12~15厘米,沟上铺60厘米宽的塑料薄膜或旧棚膜与土壤隔离,地平线以上干垒三层砖,高度18厘米。为防止作物生长期膜内积水,在栽培槽南端底部留一小缺...<正> 一、基质栽培槽结构栽培槽内径长5.3米、宽48厘米,地平线以下挖 V 字型沟,深12~15厘米,沟上铺60厘米宽的塑料薄膜或旧棚膜与土壤隔离,地平线以上干垒三层砖,高度18厘米。为防止作物生长期膜内积水,在栽培槽南端底部留一小缺口,配套建造排水沟,以便排除积水。两栽培槽之间中心距为110~120厘米。二、营养基质的配制1.原料的选择营养基质配制的原料有草木灰、菇渣、棉籽壳、锯沫、黄腐酸渣、粉碎的作物秸秆及珍珠岩、炉渣、水洗沙、鸡粪、牛粪、多元有机肥等。2.原料处理草木灰碾碎,菇渣、羊粪腐熟,炉渣过筛,选用0.8厘米以下的颗粒,pH 值为6.5~7。3.营养基质配制原料配制比例为2:3:1:1:3,配制时要将各种原料充分拌匀,每米~3配成基质中加入5千克多元有机肥和1千克磷酸二铵。展开更多
A set of computer software are developed. To simulate the law governing the deformation of soil subsidence caused by coal mining, by means of taking the law of the subsidence transmission in soil as a theoretical mode...A set of computer software are developed. To simulate the law governing the deformation of soil subsidence caused by coal mining, by means of taking the law of the subsidence transmission in soil as a theoretical model and using visual software for developing environment Visual Basic 6.0. The paper also presents the main function of the program and the key points in展开更多
文摘<正> 一、基质栽培槽结构栽培槽内径长5.3米、宽48厘米,地平线以下挖 V 字型沟,深12~15厘米,沟上铺60厘米宽的塑料薄膜或旧棚膜与土壤隔离,地平线以上干垒三层砖,高度18厘米。为防止作物生长期膜内积水,在栽培槽南端底部留一小缺口,配套建造排水沟,以便排除积水。两栽培槽之间中心距为110~120厘米。二、营养基质的配制1.原料的选择营养基质配制的原料有草木灰、菇渣、棉籽壳、锯沫、黄腐酸渣、粉碎的作物秸秆及珍珠岩、炉渣、水洗沙、鸡粪、牛粪、多元有机肥等。2.原料处理草木灰碾碎,菇渣、羊粪腐熟,炉渣过筛,选用0.8厘米以下的颗粒,pH 值为6.5~7。3.营养基质配制原料配制比例为2:3:1:1:3,配制时要将各种原料充分拌匀,每米~3配成基质中加入5千克多元有机肥和1千克磷酸二铵。
文摘A set of computer software are developed. To simulate the law governing the deformation of soil subsidence caused by coal mining, by means of taking the law of the subsidence transmission in soil as a theoretical model and using visual software for developing environment Visual Basic 6.0. The paper also presents the main function of the program and the key points in