Analysis on High Efficiency Fertilization Strategy of Ginkgo biloba Orchard in Pingtian Town , Nanxiong City

【Objective】The objective was to propose effective fertilization strategies for ginkgo orchards in Pingtian Town, Nanxiong City. 【Method】An analysis was conducted based on the field investigation of soil fertility in ginkgo orchard and the fertility demand characteristics in different phenological periods of Ginkgo biloba. 【Result】 ginkgo orchard soil belongs to acid purple soil, with an average soil integrated fertility index of 1.09, which was generally below the normal level, showing an unbalanced supply of fertility. Among those fertility indexes, available phosphorus, available potassium, available copper and available manganese in soil are at a high level of fertility, exchangeable calcium and magnesium content in soil are at a rich level, while organic matter, hydrolyzed nitrogen and cation exchange capacity are at a relatively lower level, and trace element boron shows a deficiency effect. 【Conclusion】It is suggested that the fertilization measures of ginkgo orchard in Pingtian Town, Nanxiong City should be implemented as follows: applying " farmyard manure + nitrogen fertilizer + trace element boron fertilizer " as pre-foliage fertilizer at the end of February; applying "nitrogen fertilizer + trace element boron fertilizer" as catalytic seed fertilizer at the beginning of April, in which trace element fertilizer can be sprayed by foliar fertilizer; applying base fertilizer(mainly based on farmyard manure) as post-fruit fertilizer at the end of August.