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省石家庄果树研究所,今年在株距2米,行距4—5米,每亩67—83株的四年生密植梨园内间作油菜,每亩除可收梨果2000—3000斤外,还收油菜籽224斤,油菜根1500斤(鲜重),秸杆180斤(干重)。油菜籽不仅可榨油70—80斤,而且可得油饼60斤。如把这些菜根、秸杆、油饼施到地里,即可满足每亩密植梨树一年所需的基肥。基本上解决了有机肥料的肥源问题。
Provincial Institute of fruit trees in Shijiazhuang, this year at a spacing of 2 meters, spacing of 4-5 meters, 67-83 acres of four-year-old peanut pear orchard between the rape, except for harvesting pear 2000-3000 pounds per mu, but also received rapeseed 224 pounds, 1,500 pounds of rape roots (fresh weight), straw 180 pounds (dry weight). Rapeseed can not only squeeze 70-80 pounds of oil, but also get 60 pounds of cake. If these vegetables root, straw, cake applied to the ground, you can meet the acre per mu per acre year for the base fertilizer. Basically solved the problem of organic fertilizer fertilizer.