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我校在蒙阴县山区资源保护和开发利用试验中承担的研究项目,三年来取得较大进展。1.“地边桑早期丰产栽培技术试验”先后共栽植日本“新之一濑”、“湖桑32号”等优良桑树14万余株,建专用桑园33亩。采取了多品种密植混栽、高低干配置、快速养成树型等技术措施,地边桑长势旺、见效快。2.“山丘果园旱栽培肥技术及标准化研究”演马庄试验点,1983年对7800株七年生苹果树采用穴贮肥水加盖地膜技术,总产比1982年提高12.7倍,虫果率由过去的50%下降到5%。本项技术已在全省推广20万余亩。3.“林木良种筛选和繁育研究”营造楸树测定林54亩、杂交柳、杂交毛白杨、杂交榆、石林刺槐及良种山楂12亩,还培育楸树良种4000株,香椿良种4万株,苹果良种1万余株。
Our school in mountain resources protection and development and utilization of Mengyin research projects undertaken in the past three years made great progress. 1. “Early mulberry cultivation techniques of early mulberry cultivation experiment” has planted a total of Japan’s “New Yase”, “Husang 32” and other excellent mulberry more than 140,000 strains, the construction of special mulberry 33 acres. Take a variety of close planting planting, high and low dry configuration, rapid development of tree-type and other technical measures, the growth of land mulberry prosperous, quick. 2. “hill orchard cultivation techniques and standardization of dry land” Yanmazhuang pilot point, in 1983 7800 seven-year-old apple tree stalks and fertilizer stamped with plastic film technology, the total output of 12.7 times higher than in 1982, fruit rate From the previous 50% to 5%. This technology has been in the province to promote more than 20 acres. 3. “Forest seed selection and breeding research” to create Catalpa tree 54 acres of measuring forest, hybrid willow, hybrid poplar, hybrid elm, stone forest locust and hawthorn 12 acres, but also cultivate Catalpa tree 4000, 40 000 varieties of Toona sinensis, Apple seed more than 10,000 strains.