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(续第1期第36页)一、建园规划1.选址选择适宜的地形、地貌和海拔高度,尽量避免不利气候的影响。山地北面和山谷,光照不足,影响产量和品质,并且易发生病虫害;同时,北坡冬季易受低温冻害。靠近大型水体(如水库、江河)的地方,冬暖夏凉,全年空气湿润,有利于柑橘的生长。柑橘对土壤的适应性较强,但最适宜柑橘生长的是壤土和沙壤土,黏性强和多沙土壤需要改良后才可种植。土壤酸碱度对柑橘的影响很大,现在使用较多的砧木是枳,其适宜的土壤p H值5.5~6.5。土壤有机质含量3%以上,
(Continued on page 36) First, the park planning 1. Site selection Select the appropriate topography, topography and altitude, try to avoid the adverse effects of climate. Northern mountains and valleys, inadequate lighting, affecting yield and quality, and prone to pests and diseases; the same time, the northern slope vulnerable to cold damage in winter. Close to large water bodies (such as reservoirs, rivers), cool in winter, warm in summer and wet in the air throughout the year, is conducive to citrus growth. Citrus adaptability to the soil is strong, but the most suitable citrus is the growth of loam and sandy loam, sticky and sandy soil needs improvement after planting. Soil pH has a great impact on the citrus, the rootstock now used more citrus aurantium, its suitable soil p H value of 5.5 to 6.5. Soil organic matter content of more than 3%