2004年玉林市龙眼花多果少的气象成因及对策

通过对2003/2004年度玉林市龙眼秋梢抽生期～开花着果期的农业气象条件进行诊断分析,得出2004年花多果少的主要原因是:2003年入秋以来,玉林市出现了历史上少有的秋、冬、春连旱,冬季和早春比较寒冷,在干旱和寒冷的双重作用下,有利于控制冬梢和促进花芽分化和抑制抽"冲梢"现象发生,普遍成花良好;但开花着果期却遭受了长时间阴雨天气和较剧列的温度波动,导致大量的落果。

Yulin City Longan Spend many Fruit little Meteorological Origin Cause of Formation Analyse 2004

Through tip is it catch issue to release- turn on the flowers and fruits agricultural weather terms of one diagnose that analyse to will it be autumn such as longan such as city such as Yulin one year, whether draw 2004 flower many fruit few main reason: Since autumn has set in 2003, Yulin it is in history rare to connect with on land autumn , winter , will it be one season spring for city to appear, the climate in winter and early spring is relatively colder, under arid and cold double function, is it control winter tip and promote bud split up to help very much , is it suppress during earing " washing tipping "emergence of phenomenon to help too, so it is generally good to become colored situations; But is making the flowers and fruits one and suffering influence of overcast and rainy days and high one minute and low the next fierce change of the temperature for a long time , thus caused a large amount of shedding. In longan production in the future, should according to to yield positive results habits and acquired characteristics and Yulin climate characteristic of city longan, adopt some corresponding countermeasures, strengthen management, in order to reduce the phenomenon of the shedding to the maximum extent.