Autumn tricks
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 to 3 months ahead of winter basal fertilization. It should be carried out immediately after picking the fruit and 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. The fertilizer must be mixed with the soil in the ditch and applied to the root distribution layer (20-60 cm) to avoid burning the roots.
5, fertilization method can be used trench method can also be used disk method. When the ditch is applied, a circular, rectangular, and arc-shaped fertilization ditch is excavated at the position of the canopy dripping line. The ditch depth is 40-50 cm. The width of the ditch should be determined by the amount of fertilizer and the ditch 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 rot. When fertilizing, the fertilizer should be applied layer by layer. The coarse fat such as leaves and weeds should be placed on the bottom and the top layer should be placed. For organic fertilizers, apply a layer of fertilizer to each layer of the soil. The weight of the soil should be 25-30 cm above the ground. The root groups of adult trees are staggered in the orchard and can be cast by the method of spreading the topsoil on the side of the plant along the spacing or spacing of the plants. 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 spread dry fertilizer, 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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