In order to improve the application effect of apple orchard base fertilizer, it is necessary to consider comprehensively the fertilization period, the type and ratio of fertilizers, the amount of fertilization, the method of fertilization, and the location of fertilization.
First, the best fertilization time Apple tree base fertilizer can be applied in autumn, winter and spring, with the best effect in autumn, generally in the bag before August 20 to mid-September into the appropriate, the latest in October Late.
Second, the science than the allocation of fertilizers apple trees normal growth and development needs of many nutrients, conditional orchards best through the leaf analysis, soil testing and other understanding of tree nutrients, and then implement scientific formula fertilization, try to implement the "apply organic fertilizer, With bio-fertilizers, balanced inorganic fertilizers, with mineral fertilizers, emphasis on soil conditioner "four fertilizers and one conditioning" fertilization technology.
Third, in the best area in the autumn base basal fertilizer from the tree near the depth should be appropriate, it is best applied in the root system more distributed and concentrated parts. In general, the underground root distribution is consistent with the distribution of shoots above the ground. Therefore, the distance from the tree trunk to the fertilization should be appropriate at the edge of the vertical projection of the tree crown, with a depth of 30 to 40 cm.
Fourth, farmyard manure must be fully decomposed Farmyard manure is a treasure, fruit tree growth can not be separated. Ring fertilizer, manure, chicken manure, sheep manure, human waste, grass fertilizer, crop straw, and deciduous weed must undergo decomposition decomposition before they can be absorbed by fruit trees. Unfertilized farmyard fertilizers are directly applied, and the heat and poisonous gases generated during the later fermentation can easily burn the roots of trees, and many pests can also feed the root bark and weaken the tree vigor. These raw urine and urine should be mixed together with the branches and leaves, and the appropriate amount of ammonium bicarbonate and water should be added, stacked into piles, covered with mud or plastic paper, and subjected to high temperature stacking treatment. After 80 to 100 days, the fertilizer is fully decomposed and applied underground. Stir well with the soil and other fertilizers for the best results. If there is a shortage of farmyard manure, organic manures can be refined from high-quality humic acid produced in the factory, such as refined organic fertilizers from Que Wei humic acid.
Fifth, the combined effect of fertilizer and water is good. "Water can keep up, and fertilizer effect is not the same." Sufficient water content in the soil is conducive to the decomposition, release, transport, and absorption of various organic and inorganic nutrients. In the tree body, moisture participates in the whole process of nutrient distribution, transportation, and transfer, and with good water management after fertilization, it can achieve the best effect of applying autumn basal fertiliser with water to regulate fertilization and fertilize with fertilizer.
Sixth, change the heap to a few points and apply it in a different way to dig a hole in the middle of the two trees, or dig a pit on the side of the tree, put the fertilizer together, and then spread it in the pit, and do not mix the fertilizer and the soil with a rake. This fertilization method is very easy to cause fertilizer damage, burned dead trees. The correct method should be: 1 each tree to open 3 to 5 1.5 to 2 meters long, 30 cm wide radiation groove (pay attention to the annual misalignment ditch), the fertilizer is applied by the amount, with the shovel to mix the fertilizer and soil After cover. 2 Mix fertilizers in advance and spread them evenly in the orchard. Then pour them into the soil with a shovel and depth of 20 to 30 cm. The above fertilization methods are most suitable for the full-park mature gardens and dense planting gardens, which not only increase the fertilizer application point, but also increase the fertilizing area, and are not susceptible to the formation of fertilizer and root growth disorders. The absorption roots of about 40 cm can also be obtained. Good protection, at the same time, the permeability of the orchard soil and the ability to retain fertilizer and retain water are further enhanced. Http://Content/b62771fb-f64c-4705-a709-926d3fad6793?cType=2
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