Analysis on pH and Major Soil Nutrients of Tea Gardens in Key Tea Producing Areas of Guizhou
To understand the differences of pH and major nutrients in key tea producing areas tea soils of Guizhou,201 soil samples from five main areas of Meitang(MT),Fenggang(FG),Duyun(DY),Xixiu(XX) and Zhengan(ZA) in Guizhou were analyzed.SPSS and Sigmaplot were employed to analyze significant differences and the drawing.The classification standard of soil fertility and Nutritional diagnosis indexes with good quality and high yield for the tea soils were used to evaluate status of main soil nutrient.pH,organic matter(OM),total nitrogen(TN),available phosphorus(M3-P) and available potassium(M3-K) in five tea producing areas' tea soils were contrastively studied.Results:(i) pH of D Y and XX areas' tea soils (pH concentrated in 3.00-4.00,serious acidification) were significantly lower than that of MT and FG (pH concontrated in 4.00-4.50,acidification),which were significantly lower than ZA (pH concentrated in 4.00-5.00,trend of acidification).(ii) The OM and TN contents of DY and XX areas tea soils were significantly higher than that of MT and FG,reached the level of good and The soil nutrient levels with good quality and high yield,while that of MT and FG,areas' tea soils were only 1/2 and 1/5 samples of good quality and high yield tea garden soil standard.(iii) Each tea area was generally lack of P,the most serious of that in tea garden soil was ZA,the M3-P contents of ZA areas tea soils was significantly lower than that of DYand FG,there were 3.13 ％ samples of good quality and high yield tea garden soil standard in ZA.(iv) Each tea area was generally lack of K,the most serious of that in tea ganden soil was FG,the M3-K contents of FG areas' tea soils was signiticantly lower than that of other areas,none of the samples from FG were of good quality or up to high yield tea garden' s soit standard.
NETL
NSTL
万方数据
维普
