海南省槟榔生理性黄化及其相关栽培因子的发生情况调查

Occurrence of Arecanut Physiological Yellowing and Its Related Cultivation Factors in Hainan Province

为了明确海南省槟榔生理性黄化及其相关栽培因子发生情况,采用随机踏查的方式,对海南省16个市县的槟榔生理性黄化及相关栽培因子进行调查。结果表明,海南省槟榔生理性黄化率为3.73%,其中,文昌市槟榔生理性黄化率最高,达10.08%,其它市县槟榔生理性黄化率均低于10%;屯昌县槟榔生理性黄化发生面积最大,达935.22 hm^(2),其次是万宁市和琼海市;海南省槟榔在坡地种植、使用除草剂、具备灌溉设施及套种其它作物的发生频率分别为26.30%、30.24%、7.53%及15.30%;其中,坡地种植槟榔主要集中在海南中南部地区,琼海市槟榔园使用除草剂的发生频率最高,达62.96%;儋州市槟榔园具备灌溉设施的发生频率最高,为36.36%;全省槟榔套种最多的作物为胡椒。

A survey was made of occurrence of arecanut physiological yellowing and its related cultivation factors in 16 cities and counties in Hainan Province by detailed random reconnaissance.The results showed that the arecanut physiological yellowing rate in Hainan Province accounted for 3.73%.Wenchang City has the highest arecanut physiological yellowing rate,up to 10.08%,and the other cities or counties have an arecanut physiological yellowing rate of lower than 10%.Tunchang County has the largest area of arecanut under physiological yellowing,which is up to 935.22 ha,followed by Wanning City and Qionghai City.The occurrence frequencies of arecanut physiological yellowing in the arecanut plantations under the conditions of planting on the slope,using herbicides,irrigating,and intercropping with other crops in Hainan Province are 26.30%,30.24%,7.53%and 15.30%,respectively.Arecanut plantations established on the slope are mainly distributed in the central and southern parts of Hainan.The frequency of occurrence of arecanut physiological yellowing in the arecanut plantations by using herbicides is the highest in Qionghai City,which is up to 62.96%.The areca plantations under irrigation in Danzhou has the highest occurrence frequency of arecanut physiological yellowing,which is 36.36%.Black pepper is the most common intercrop in the arecanut plantations in the province.