Six tips for scientific fertilization in autumn
1. Base fertilizers applied in the fall mainly include organic fertilizers such as manure, compost, and straw, supplemented by chemical fertilizers, so that the combination of soil and supply can be improved, and the delayed effect and quick-effect complement each other. When applying chemical fertilizers, pay attention to the ratio of nitrogen, phosphorus, and potassium, and do not apply excessive available nitrogen fertilizer, otherwise it is easy to cause winter shoots. At the same time, it is necessary to apply trace elements in a targeted manner. ?
2. Autumn basal fertilization should be 2-3 months ahead of winter basal fertilization. It should be carried out immediately after picking fruit and clearing arable land.
3, the selection of manure must be fully cooked, it is strictly prohibited to use dry manure or fresh manure. At the same time with the right amount of nitrogen, phosphorus, potassium fertilizer, or use of apple fertilizer. ?
4, fertilizer in the ditch must be mixed with the soil, applied in the root distribution layer (20-60 cm), so as not to burn root. ?
5, fertilization method can be used trench method can also be used disk method. When furrowing, ditches circular, rectangular, and arc-shaped fertilization furrows at the canopy drip line location. The furrow depth is 40-50 cm. The furrow width should be determined by the amount of fertilizer and the furrows should be flat. Spread the dry fertilizer in the ditch after watering, and cover the soil immediately after the water is dry. Before the fertilization, the roots of the exposed trench should be cut along the trench walls. The cut should be smooth to prevent the roots from becoming moldy and rotten. The fertilizer should be applied layer by layer and the coarse fat such as leaves and weeds should be placed on the bottom layer. For organic fertilizers, each layer of fertilizer is coated with a layer of soil, and the loam soil should be 25-30 cm above the ground. The root groups of adult trees are staggered in the orchard and can be plated. This means that the topsoil is split along the spacing of the plants or the row spacing on the side of the plant. When the soil is near the trunk, it should be shallow (7–10 cm) away from the trunk. Should be deep (40-60 centimeters), then apply dry fertilizer, and then cover the soil.
6, where conditions permit, combined with orchard grass, vigorously develop grass - animal - marsh supporting technology, as far as possible to promote balanced fertilization or formula fertilization technology.
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