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在华南地区,芒果树一般在定植后第三年可以开始结果,第四年正式投产。在果园覆盖面积达到最大前,随着树龄的增长,产量增加,施肥量也必须随之增加。定植距离为5米×4米的芒果园,如不控制树冠,在第6-7年即可封行。稀植园可延长至9-10年才封行。封行以后,芒果产量达到接近最高,施肥量也保持在一定的水平。确定芒果结果树的肥料需要量是很复杂的, 涉及到果实产量、枝叶生长量、土壤养分可供给量、肥料的流失量及植株的吸收利用率等等因素。建议芒果结果树施肥量是,在第4-5年每年每株施氮肥(含氮28%)0.75公斤,过磷酸盐0.75公斤,氯化钾0.50公斤。以后在此基础上,每2年每株施肥量按氮磷钾肥各增加0.25公斤。最高每年每株施氮肥1.50公斤,过磷酸盐1.50公斤,氯化钾1?25
In southern China, mango trees generally can begin to produce results in the third year after planting and are officially put into production in the fourth year. Before the orchard reaches the maximum coverage area, with the increase of the tree age, the yield will increase and the amount of fertilizer must also increase accordingly. Planting a distance of 5 meters × 4 meters of the mango orchard, if not control the canopy, in 6-7 years can seal line. Sparse plantation can be extended to 9-10 years before the seal line. After the closure, mango production reached the highest level, the amount of fertilizer also remained at a certain level. Determine the fertilizer requirements mango tree is very complex, involving the fruit yield, foliage growth, soil nutrient availability, fertilizer loss and plant absorption and utilization and so on. Proposed mango tree fertilization results, in the 4-5 year per plant nitrogen fertilizer (nitrogen 28%) 0.75 kg, 0.75 kg of superphosphate, potassium chloride 0.50 kg. After this on the basis of every 2 years, the amount of fertilizer per plant increased by 0.25 kg of nitrogen, phosphorus and potassium. The maximum annual nitrogen fertilizer per plant 1.50 kg, 1.50 kg of phosphate, potassium chloride 1? 25