摘要
目前有关海南辣椒生产现状的研究极少,探索辣椒主产区产量差,同时分析其限制因子,能够为提高海南辣椒栽培水平提供理论基础。本研究对海南省临高县52个农户螺纹椒产量、施肥和管理情况进行调研,分析辣椒产量与各因子之间的关系。结果表明:高产组平均产量达62.64 t/hm^2,与低产组的产量差为46.5 t/hm^2。辣椒产量与复合肥投入基追比呈显著负相关,与复合肥投入量和农药使用次数呈显著正相关。此外,本试验区磷养分的投入过高,造成土壤磷的过量积累。该调查结果表明,调查区域应推广高氮高钾型复合肥,以减少土壤中磷的过量积累。低产农户提高复合肥用量和追肥比例,并加强病虫害防治,可提高产量。
There are few studies on the current situation of pepper production in Hainan. Exploring yielding gap and the limiting factors could provide a theoretical foundation to improve pepper cultivation in Hainan. Pepper yielding, fertilization and management of 52 farmers were investigated, and then the relationship between pepper yielding and the potential limiting factors were explored. It was found that the average yield of the high yield group was 62.64 t/hm^2, and the yield gap with the low yield group was 46.5 t/hm^2. Pepper yield was negatively correlated with compound fertilizer base/topdress, but positively correlated with compound fertilizer and application number of pesticides. Moreover, high input of phosphorus nutrient resulted in excessive accumulation of soil phosphorus. Present results suggested that, in order to reduce the accumulation of soil phosphorus, compound fertilizer with high nitrogen and high potassium should be broadly promoted in Lingao. In addition, farmers with low yield could raise yield through increasing compound fertilizer and enhancing pest control.
作者
余小兰
杨福锁
蔡卫音
杜公福
戚志强
李晓亮
YU Xiaolan;YANG Fusuo;CAI Weiyin;DU Gongfu;QI Zhiqiang;LI Xiaoliang(Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571101,China;Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences,Danzhou,Hainan 571737,China;Yunnan Yuntianhua Agriculture Materials Chain Co.Ltd,Kunming,Yunnan 650228,China;Institute of Tropical Agriculture and Forestry,Hainan University,Danzhou,Hainan 571737,China)
出处
《热带作物学报》
CSCD
北大核心
2018年第11期2147-2152,共6页
Chinese Journal of Tropical Crops
基金
海南省重大专项(No.ZDKJ2017001)
中国热带农业科学院基本科研业务费专项(No.pzsfyl-201818)
国际镁营养研究所资助项目
关键词
辣椒
产量差
限制因子
海南
pepper
yield gap
limited factor
Hainan
