摘要
采用田间试验法,设定常规多次追肥管理模式中追肥量为100%用量,研究一次性减量施用控释配方肥对菠萝钾元素吸收与分配的影响。结果表明:75%施肥量的控释配方肥中,菠萝果实、茎和整株的生物量分别增加了18.7%、14.8%和9.6%;75%施肥量的控释配方肥明菠萝对钾的吸收,增加了27.8%;60%施肥量控释配方肥明显增加了菠萝钾元素在果实中的分配比例,增加了9个百分点。因此,一次性施用减量25%~40%控释配方肥可保证菠萝吸收持平或更多的养分。
Compared with traditional fertilization,a field experiment was carried out to clear up the effects of single applied controlled release BB fertilizer of 60%or 75%of traditional application on potassium uptake and distribution in pineapple.The result showed that,the fresh fruit,stem,and total weight were increased 18.7%,14.8%and 9.6%,by 75%application of controlled-release BB fertilizer.Besides,compared with blank treatment,K proportion in fruits was improved 9 percent point by 60%application treatment.To sum up,compared with the traditional fertilization,the controlled-release BB fertilizer with a lower of 25%〜40%application would enhance nutrients uptake in pineapple.
作者
苏国鹏
罗远骢
陈钦坚
Su Guopeng;Luo Yuancong;Chen Qinjian(Guangdong Tianhe Agricultural Means of Production Co.,LTD,Guangzhou 510000,Guangdong,China)
出处
《农业技术与装备》
2022年第1期12-14,共3页
Agricultural Technology & Equipment
关键词
菠萝
控释配方肥
钾
吸收
分配
pineapple
controlled release BB fertilizer
potassium
uptake
distribution
