论文部分内容阅读
在日本,随着保护地面积的扩大,规格的大型化、骨架及复盖材料的改进,温、湿度等管理设备的不断完善以及新式农机具的使用,保护地的土壤管理技术也经历了深刻的变化。二次大战以后及整个五十年代,日本保护地的复盖形式以小型木框温室及小拱棚为主。这个阶段的栽培方式则属于早熟栽培。耕作施肥是以锹镐等工具进行人力操作,栽培床实行深挖沟,铺施有机肥,同时将一少部分基肥施
In Japan, soil management technologies in protected areas have also undergone profound changes with the expansion of protected areas, the increase of specifications, the improvement of skeleton and cover materials, the continuous improvement of management equipment such as temperature and humidity, and the use of new agricultural implements The change. After World War II and throughout the 1950s, the form of cover of Japanese protected areas mainly consisted of small wooden frame greenhouses and small sheds. The cultivation of this stage belongs to early cultivation. Tillage fertilization is carried out by hand tools such as spade pick manpower operation, cultivation bed deep ditch, apply organic fertilizer, while a small part of the base fertilizer