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经多年试验表明,磷肥和氮肥配合使用,油茶增产极显著(2.0倍),在氮磷基础上配施茶饼,效果更好(2.4～2.9倍),单独施氮肥营养生长效果好,但增产幅度较小;单施茶讲或磷肥则无效;钙镁磷肥、磷矿粉、过磷酸钙3种磷肥分别与尿素、茶讲配施均有极显著的增产效果。试验还表明,磷矿粉对油茶是有效的,其效果与钙镁磷肥及过磷酸钙同。大面积施肥试验表明,油茶合理施肥能显著提高经济效益,每亩获利51.23～98.29元,每元成本获利2.61～6.53元。
After many years of experiments, it showed that with the combination of phosphate fertilizer and nitrogen fertilizer, the yield of Camellia oleifera was extremely significant (2.0 times). Tea cake was better on the basis of N and P (2.4-2.9 times) Amplitude is small; tea alone or phosphate fertilizer is invalid; three phosphate fertilizer, calcium magnesium phosphate, phosphate rock, superphosphate, respectively, with urea, tea, said a very significant stimulation effect. Test also showed that phosphate rock powder is effective on Camellia oleifera, its effect is the same with the calcium magnesium phosphate and superphosphate. Large area fertilization experiments show that the rational fertilization of Camellia can significantly improve economic efficiency, profit of 51.23 to 98.29 yuan per mu, profit per yuan 2.61 ~ 6.53 yuan.