摘要
研究了梅州沙田柚 (Citrusgrandisvar shatinyuHout )叶片、果实在各时期的矿质元素含量变化。结果表明 ,沙田柚在年周期中 ,树体的营养元素含量随着物候期表现出明显的季节性变化 ,说明沙田柚的栽培必须按各物候期、迎合沙田柚对营养要求 ,适时地、适量地供给各种养料 ;根据成熟果实中N、P的吸收量可推算出其全年所需的施氮、磷施肥量。
This paper studied that the content of mineral element were changed from leaves and fruit at apiece period on Citrus grandis var shatinyu Hout in Meizhow.The result indicated that the content of nutrition element at the tree were put up clear variety along with season.It was shown that the planting must were according to season and the request for nutrition on Citrus grandis var shatinyu Hout.The apiece nutrition were furnished by fit time and fit quantity.Base on the absorb quantity of N and P at nature fruit were able to calculate the fertilizer requirement of nitrogen and phosphorus on Citrus grandis var shatinyu Hout.
出处
《生态科学》
CSCD
2000年第1期19-22,共4页
Ecological Science
基金
华南退化坡地绿色食品生产及保护与提高生物多样性研究资助项目!(中美日合作项目 )
广东省百项工程资助项目
关键词
梅州沙田柚
营养
物候期
施肥
果实
矿质元素
Citrus grandis var shatinyu Hout in Meizhow
leaves
fruit
mineral element
seasonal change
fertilizer time
fertilizer requirement
