西峡县猕猴桃果园土壤养分状况调查

本文对河南省西峡县猕猴桃园土壤养分状况进行了调查。结果表明：土壤pH值普遍呈酸性、弱酸性，适合猕猴桃生长；土壤有机质较缺乏；速效氮普遍缺乏；0～25 cm土壤有效磷、速效钾含量均达到适宜水平以上，但随着土层深度的增加含量略有下降；不同果园的有效硼、有效锌含量差异较大，25～50 cm土壤有效锌、有效硼含量处于缺乏水平。

Investigation and Analysis on Soil Nutrient Availability of Kiwifruit Orchards in Henan province

Study on the soil nurtrition in kiwi orchardsSin Xixia County,HenanSProvince. The results showed that the soils belonged to faintly acid soil or acid soil, samples suitable for the growth of Kiwi tree on account of pH. Most samples were short of soil organic matter and soil available nitrogen. InSthe 0-25cmSsoil layer,S22-44% of the soil availabe nitrogen reached the general level, as to 25-50cm soil layer, all of samples lack of the availabe nitrogen, moreover, 44.44% of the soil availabe nitrogen belonged to extremely low level.InSthe 0-25cmSsoil layer,Sthe content of available phosphorus andSavailable potassiumSof all the samples reached the optimal level for the growth of Kiwi tree.With the depth of the soil, the content of available P and K decreased. There was significant difference in available Zn and available B between different Kiwi orchards. With regards to the 25-50 cmSsoil layer, the content of available Zn andSavailable B is a little bit deficient.