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茶树是多年生叶用植物,在施肥上,氮肥占有绝对优势。在茶园土壤肥力研究中,也以氮肥研究为主。对于投产茶园,除了满足作物生长所需的氮素营养外,一般较少考虑磷、钾肥的施用,生产上尤其如此。调查我省45县代表性投产茶园(亩产100-150公斤),土壤有效磷、钾含量不尽相同。有效磷含量变幅为5—50毫克/100克土,有效钾含量变幅为5—20毫克/100克土。
Tea is a perennial foliage plant, fertilizer, nitrogen occupy an absolute advantage. In the study of soil fertility in tea plantations, nitrogenous fertilizer is also the main research. For the production of tea plantations, in addition to meet the needs of crop growth in nitrogen nutrition, generally less consideration of phosphorus and potassium fertilizer application, especially in production. Investigation of 45 counties in our province put into operation a representative tea plantation (mu yield 100-150 kg), soil available phosphorus, potassium content varies. Effective phosphorus content range of 5-50 mg / 100 grams of soil, available potassium range of 5-20 mg / 100 grams of soil.