摘要
为帮助合理施肥,采用叶片分析并参考土壤养分分析来确定和调整果树施肥量的方法,对10个杏品种叶片中养分含量进行化验分析,并测定了不同杏园的土壤养分状况。结果表明,与其他果树相比,杏在落叶果树中是需肥较多的树种。不同的品种表现出一定的差异,除钾、钠、锰、铁个别品种差异显著外,其他元素含量不同品种间的差异不大。玉巴旦和凯特杏为喜钾性树种,叶片中铁的含量以凯特杏、串角滚子为高,优选1号需钠较多,明星杏钠含量为均值的1.63倍。杏叶片中Cu与K存在着相互协助作用,Fe与Ca存在着相互拮抗的作用。处于不同山区的园地速效氮差异显著,不同土层土壤养分含量除速效氮外差异不大,因此施肥时应注意氮肥的量。
For helping rational fertilization, using the method of leaf and soil nutrient analysis to define and adjust fruit trees fertilizer amount,ten apricot varieties leaf nutrient contents and soil nutrient of different experimental sites were tested. Compared with other fruit trees, the results showed thatapricot require more fertilizer in deciduous fruit tree. Different varieties exhibited some differences, besides K , Na, Mn and Fe had significant difference in individual variety, other element content difference in different varieties was small. Yubadan and Kate liked K very much,‘Kate’and‘Chuanjiaogunzi’contained the highest Fe in leaf , Optimization 1 required much more Na, Na content of Star apricot was 1.63 of mean. There was the role of mutual assistance between Cu and K of the apricot leaves, mutually antagonistic role between Fe and Ca. The content of available nitrogen in apricot gardens from different areas differed significantly, in different soil layers soil nutrient content differed not much except the content of available nitrogen. Therefore, the amount of nitrogen fertilizer should pay attention to when fertilizing.
出处
《中国农学通报》
CSCD
北大核心
2010年第10期192-196,共5页
Chinese Agricultural Science Bulletin
关键词
杏
叶片养分含量
土壤养分含量
apricot
leaf nutrient content
soil nutrient content
