【摘要】 常太１２个村３０片果园土壤肥力和叶片营养分析的结果表明土壤ｐＨ 变幅为４．０６～４．９６，属酸性土壤；土壤有机质质量分数平均１．５４％ ；土壤含Ｎ 量平均０．０５２％ ，低于０．０５０％ 的果园占总数的５３．５％ ；３３％ 土样Ｐ素低于１５×１０－ ６的临界值；５６．７％ 土壤Ｋ素营养不足；Ｃａ、Ｓ和Ｚｎ 营养充足；所有样品的代换性Ｍｇ 和Ｂ质量分数分别低于５０×１０－ ６和０．５０×１０－ ６的临界值；枇杷叶片样本的Ｋ 和Ｂ质量分数偏低，Ｍｇ 明显不足；龙眼叶片的Ｎ、Ｋ和Ｍｇ 质量分数偏低；橄榄Ｍｇ 和Ｂ明显缺乏．据此，提出了土壤培肥、合理施肥和缺素症矫治措施．更多还原

【Abstract】 The results of soil fertility and leaf nutrient analysis of thirty orchards in twelve villages of Changtai town were as follow: pH range of the soil was 4.06-4.96 and the soil was acid; mass fraction of average organic matter in the soil was 1.54%; mass fraction of average N was 0.052%, the total number of the orchards which average N content was lower than 0.050% was 53.5%; P content in 33% soil sample was lower than the critical value(15×10 -6 ); K content of 56.7% of soil sample was insufficient; Ca,S and Zn contents were sufficient; Mg, B contents in all soil samples were lower than critical values of 50×10 -6 and 0.50×10 -6 respectively; the K and B contents in loquat leaf was little low; Mg content was obviously insufficient. The contents of N, K and Mg in longan leaf were little low; Mg contents in Chinese olive were obviously insufficient. Based on these data, measures of soil fertilization, reasonably fertiling and remeding of deficiency symptom were put forward.更多还原