Nutrition elements contained in leafs of Phyllostachys praecox f .preveynalis and soil nutrients

Key words: 
• Phyllostachys praecox f .preveynalis /
• leaves /
• nutrition elements /
• soil chemical analysis

Abstract: This paper studies the relations between nutritions in leaf of Phyllostachys praecox f .preveynalis and soil nutrients .Samples concerned are collected from different sites of bamboo forest in Gaohong town , Linan , Zhejiang .Nutrition elements are Si , N , K , Ca , P , Mg and Fe in order of the average content .They are respectively 18.45 , 15.14 , 14.71 , 2.92 , 2.33 , 1.30 and 0.13 g kg-1 .The variation coefficients of phosphous is among the least (5.83 %), and that of silicon is among the biggest (26.284 %).Nitrogen content in leaf has a good relation to the total nitrogen and hydrolysable nitrogen in soil , and correlation coefficients are 0.639＊ and 0.669＊ respectively .Potassium content in leaf is also good related to organic matter and rapid potassium of soil and correlation coefficients are 0.635＊ and 0.789＊＊ respectively .However , calcium content of leaf to soil available phosphous and magnesium content of leaf to soil rapid potassium are negative related (correlation coefficients are -0.657＊ and -0.638＊).Nitrogen , phosphous , potassium and magnesium contents in 1-year-old bamboo leaf are more than that in 3-year-old bamboo leaf , and the times are 1.08 , 1.11 , 1.33 and 1.15 respectively .But calcium and silicon are quite the contrary , and times are 1.08 and 1.36 respectively .