How to fertilize Pugu pear reasonably

Fertilizers are essential nutrients for plant growth. For the Papaya pear tree, its wildness and resistance are strong. Therefore, it is necessary to rationally apply fertilizer according to its growth period and physiological characteristics during fertilization.

1 . Best autumn fertilization

Autumn is the peak period of fruit tree root growth and a key period for accumulating nutrients. Therefore, we should seize this opportunity and apply it in time. In young trees per 60--100 kg is appropriate; per hundred pounds of fruit trees results pig manure or dung 150 pounds 100 pounds, about 40 pounds of chicken appropriate, the application must go through the composting manure (green manure burning roots Do not apply directly. If you can add the corresponding amount of fertilizer, it will be better. Summer method of administration methods may be used and fertilizing method, the depth of 30 - 40 cm is appropriate. The best fertilization time is from the end of September to the beginning of October .

2 . Second spring fertilization

If the autumn fertilization is not carried out in the previous year, spring fertilization should be carried out before the spring pear buds sprouted. If administered per jin can 6--7 pounds of fertilizer (administration ratio of nitrogen, phosphorus, potassium, according to the tree vigor should be, under normal circumstances, the proportion of three to 1: 0.5: 1.2) preferably can be incorporated 1--3 times Bio-organic fertilizer, which not only improves fertilizer efficiency, but also improves soil. Fertilization time in late April, there are water conditions should be filling a second permeable.

3 . Control summer top dressing

For the Papaya pear tree with weak tree or more fruit, it can be used for secondary topdressing. If administered per hundred pounds 2--3 pounds of fertilizer can be, of which potassium, supplemented by a small amount of nitrogen and phosphorus. Fertilization time is at the end of June and early July . In summer, the topdressing should not be used too much, which will affect the quality of the fruit.

4 . Foliar spray

Foliar spray fertilizer has the advantages of quick absorption, low input, convenient and practical, and can be mixed with most pesticides. In the early stage , the urea solution is mainly 0.3% - 0.5% . After entering July, 0.3% potassium dihydrogen phosphate solution or 0.3% - 0.5% calcium nitrate solution can be sprayed (other foliar fertilizers should be used with caution). General Yemianpenfei interval 7--10 days, and even spray three times, you will receive good results. Foliar spray fertilizer is also suitable for fruit trees with weaker trees and more fruit. If the tree is strong, it is not necessary to spray.