How to fertilize the result lemon tree

Results The principle of fertilization of lemon trees is to re-apply deep application of autumn fertilizer and fruit harvesting fertilizer. Look at the tree to supplement the pre-flowering fertilizer and the ear-fruit fertilizer, so that the first half is young and the second half is heavy.

　　 March spring shoots sprout ~ 2, for the first 1 fertilizer, according to the strength of vigor, were administered to some of the available nitrogen complement. Trees with weak materials and large amount of flowers should be applied more appropriately ; trees with less material and less flowers should be applied less or not. Nitrogen used in an amount of 10 to 15% of the total annual promote flowers spring shoots thrive.

The second after fertilization before fruit enlargement to anthesis, binding and fruit, pest control, repeatedly spraying 0.3% urea solution, to replenish the loss of nutrients tree after flowering, increase the amount of fruit.

The third fertilization period is from July to August , and it is the period of autumn shoots and fruit expansion. The large amount of fertilizer, the amount of nitrogen of 40% of the year, phosphorus and potassium fertilizers 50/50, open pit 2 in the fertilizer per drip line, 30 to 40 cm deep, in order to ensure robust fall tree alma mater, Spring flower differentiation is good.

The fourth application of fertilization was carried out after the fruit was harvested in November and before the temperature was lowered. Deep digging pits on the other sides of fertilization in autumn, the amount of nitrogen applied accounted for 40 % of the annual amount , and phosphorus and potassium fertilizers accounted for 40 % each , mainly organic late-acting fertilizers such as green manure and slag fertilizer.

The fertilizer per tree determined nearly annual, annual production of 30 kg to strain gauge, strain should be pure nitrogen 0.3 kg, 0.2 kg of pure phosphorus, potassium, 0.2 kg of pure, equivalent to about 0.6 kg is administered urea, superphosphate 1.0 kg , potassium chloride 0.5 kg. According to tests, a 15-year-old lemon trees, cow manure is applied four times per year, per 150 kg, 48 kg average yield; 50O kg per plant, producing strains up to 73 kg.

In addition, when the safflower suffers losses, it should immediately increase the application of quick-acting fertilizer to promote the results of the May and June flowers and increase the output of the year.