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.
Nails for concrete are called cement nails. Cement Nail, commonly known as Steel Nail, is a nail, using carbon steel production, material has 45 steel or 60 steel, after wire drawing, annealing, nail, quenching and other processes processed, so the texture is relatively hard. Its function is to nail in some of the harder other nails can not nail on the object, because the material and ordinary nails are very different, is a special nail. The Cement Nail`s hardness is very big, is thick but short, pierces the Chisel ability to be very strong. CATEGORIES: Cement Nails Poles have a sliding rod, ruled, twill, spiral, bamboo, and so on, the general is a straight or sliding pole. According to different classification, cement nails can also be divided into: Black Cement nails, blue cement nails, color cement nails, countersunk head cement nails, K cement nails, t cement nails, galvanized cement nails and so on.
Home Concrete Wall nails nails several ways: 1, with cement nails, as the name implies is designed specifically in the concrete wall or brick wall and other hard medium nail things. 2. However, cement nails are sometimes not so good, if some walls really can not nail cement nails, expansion Bolts or expansion bolts, no matter how hard the wall it can handle. 3. However, when using expansion bolts or expansion bolts, an auxiliary tool is needed, which is the electric drill.
4. The head of the drill corresponds to the type of expansion bolt, so be sure to have a drill.
Straight, twill, spiral, bamboo
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