【摘要】 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。更多还原

【Abstract】 In long-term fertilizer trials with applications of phosphatic fertilizer and nitrogenous fertilizer on oil-tea camellia, yield was increased by 201%. Phosphatic fertilizer and nitrogenous fertilizer supplemented with oil-tea seed cake gave better result than any other treatments and increased the yield by 239-287%. Application of ground rock phosphate or oil-tea seed cake singly had no effect, and application of nitrogen fertilizer singly considerably stimulated vegetative growth, but it had only a little effect on yield. Ground rock phosphate was found to be an effective fertilizer for oil-tea camellia.Experiments proved that rational application of fertilizers would bring high economic benefit. The profit per mu was 51. 23-98.29 yuan, and there was the return of 2.61-6.53 yuan at the cost of 1 yuan.更多还原