After harvesting the fruit garden in the autumn apple orchard, the base fertilizer should be applied immediately.
The base fertilizer applied in autumn is mainly composed of manure, compost, straw and other organic fertilizers. It is combined with appropriate amount of NPK quick-acting fertilizer or apple special fertilizer to achieve the combination of soil improvement and support, delay and quick effect. Pay attention to the application ratio of nitrogen, phosphorus and potassium when applying fertilizer. It is not advisable to apply too much quick-acting nitrogen fertilizer, otherwise it will easily cause winter shoots. At the same time, it is necessary to apply trace element fertilizers in a targeted manner.
Ditch casting and disc casting can be used. Ditch application, excavation of circular or rectangular or curved fertilization ditch at the position of the canopy drip line, the ditch depth is 40~50 cm, the ditch width depends on the amount of fertilization, and the ditch bottom should be flat. After the water is drenched in the ditch, dry fertilizer is applied, and the soil is dried and covered with soil. Before the fertilization, the roots exposed in the ditch are cut along the ditch wall, and the cuts should be smooth to prevent the roots from being moldy and rotten. When fertilizing, the fertilizer should be applied layer by layer, and leaves, weeds, etc. should be laid on the bottom layer, and the upper layer should be applied with organic fertilizer. Each layer of fertilizer is covered with a layer of soil, and the soil is 25-30 cm higher than the ground. Adult tree root groups are staggered in the orchard, and can be fertilized by plate application method, that is, the topsoil is opened on the plant side along the plant spacing or row spacing, and the near trunk should be shallow (7-10 cm deep), and should be deeper from the trunk.耙 (40~60 cm deep), fertilize and cover the soil after simmering.
The base fertilizer applied in autumn is mainly composed of manure, compost, straw and other organic fertilizers. It is combined with appropriate amount of NPK quick-acting fertilizer or apple special fertilizer to achieve the combination of soil improvement and support, delay and quick effect. Pay attention to the application ratio of nitrogen, phosphorus and potassium when applying fertilizer. It is not advisable to apply too much quick-acting nitrogen fertilizer, otherwise it will easily cause winter shoots. At the same time, it is necessary to apply trace element fertilizers in a targeted manner.
Ditch casting and disc casting can be used. Ditch application, excavation of circular or rectangular or curved fertilization ditch at the position of the canopy drip line, the ditch depth is 40~50 cm, the ditch width depends on the amount of fertilization, and the ditch bottom should be flat. After the water is drenched in the ditch, dry fertilizer is applied, and the soil is dried and covered with soil. Before the fertilization, the roots exposed in the ditch are cut along the ditch wall, and the cuts should be smooth to prevent the roots from being moldy and rotten. When fertilizing, the fertilizer should be applied layer by layer, and leaves, weeds, etc. should be laid on the bottom layer, and the upper layer should be applied with organic fertilizer. Each layer of fertilizer is covered with a layer of soil, and the soil is 25-30 cm higher than the ground. Adult tree root groups are staggered in the orchard, and can be fertilized by plate application method, that is, the topsoil is opened on the plant side along the plant spacing or row spacing, and the near trunk should be shallow (7-10 cm deep), and should be deeper from the trunk.耙 (40~60 cm deep), fertilize and cover the soil after simmering.
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