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Studies on Soil Fertility Quality of Zanthoxylum planispinum var. Dingtanensis in Different Planting Bases
- SONG Yanping1, YU Yanghua2*, YANG Danli1, LUO Jing1
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2019, 21(9):
125-136.
DOI: 10.13304/j.nykjdb.2018.0525
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In order to investigate the soil fertility quality characteristics of Zanthoxylum planispinum var. Dingtanensis in different planting bases, this paper took 3 different planting bases(base 1 was wasteland, base 2 was reclaimed land, base 3 was farmland)of Zanthoxylum planispinum var. Dingtanensis in Beipanjiang Town, Zhenfeng County, Guizhou Province as study object, and measured 30 indicators including soil pH, AN and AP, etc., then built up the minimum data set and evaluated the soil fertility quality. The results showed that TN, TP, AP, Mg, Fe, Al, Ni, Co, Pb, Cd and Cr were the highest in base 1; AN, TK, AK, Cl, Mn, B, Mo, Zn, Cu, As and Sr were the highest in base 2; pH, SOC, Ca, Si and Se were the highest in base 3. The minimum data set for soil fertility quality evaluation included two indicators of Mn and B. Moreover, Mn had a higher loading value (0.998) in the first principal component, and B had a higher loading value (0.997) in the second principal component. Soil fertility quality comprehensive indexes from high to low were in the following order: base 2 (0.75) > base 1 (-0.32) > base 3 (-0.43). In order to improve soil fertility quality, the contents of AN, AP, TK, AK, B, Ti and Sr should be increased in base 1; pH should be properly improved in base 2; and contents of TN, Fe, Mn, Mo, Zn, Co and As should be increased in Base 3. These studying results provided theoretical data for soil nutrient management and soil-testing for formulated fertilization in Zanthoxylum planispinum var. Dngtanensis planting bases.