水是柑桔生长发育过程中不可缺少的成份,除干旱季节及时灌水以满足柑桔生理活动需要外,桔园在采收前(10月中旬)灌水是柑桔生产中一项很重要的技术措施,效益是可佳的。 一、采前灌水对当年产量的影响 柑桔采前,果实已趋成熟,这时果实对水分的吸收虽然不如其旺盛生长时那样强烈,但此时天气多晴少雨,土壤比较干燥,如进行灌水,则对果实的膨大仍起很大的作用。1985年5月上旬,天气高温低湿,致使柑桔落花落果严重。我们曾于10月4日,由场部组织有关人员 Water is an indispensable component of citrus growth and development. In addition to timely irrigation in the dry season to meet the needs of citrus physiological activities, orange before harvest (mid October) irrigation is an important technology in citrus production Measures, benefits are good. First, the impact of pre-harvest irrigation on the production of citrus before harvest, the fruit has matured, when the fruit of water absorption, although not as strong as when its strong growth, but at this time more sunny and drier, the soil is relatively dry, as carried out Irrigation, the enlargement of the fruit still play a big role. Early May 1985, the weather was hot and humid, resulting in serious fall and fall of citrus. On October 4, we organized the relevant personnel from the field