First, the fertilization problem and fertilization principles for the tea garden organic fertilizer input is insufficient, the soil is poor and the ability to maintain water and fertilizer is poor, part of the tea garden nitrogen fertilizer consumption is high, phosphorus and potassium fertilizer ratio is insufficient, the lack of trace elements such as magnesium, sulfur, boron occur from time to time, The excessive application of nitrogen fertilizer in some tea gardens in South China and other tea regions leads to problems such as soil acidification being more common, and put forward the following principles of fertilization: 1, increase organic fertilizer, organic and inorganic application. 2, according to the soil fertility conditions and yield levels, appropriate to reduce the amount of nitrogen fertilizer, strengthen the combined application of phosphorus, potassium, magnesium fertilizer, pay attention to sulfur, boron and other nutrients. 3. Tea plantations with severe soil acidification (pH 4, combined with high yield and high quality cultivation techniques. Second, fertilization recommendations 1, the general production of tea garden nitrogen fertilizer 20 to 30 kg/mu, phosphate 4 to 6 kg/mu, potash 6 to 10 kg/mu. The amount of fertilizer mentioned above includes nutrients in organic fertilizers. 2. Magnesium, zinc and boron deficiency tea gardens use 2 to 3 kg/mu of magnesium fertilizer, 0.7 to 1 kg/mu zinc sulfate, and 1 kg/mu borax. 3. Sulfur-depleting tea gardens choose sulfurous fertilizers such as ammonium sulfate, potassium sulfate, and superphosphate. Fertilizer operations throughout the year. In principle, organic fertilizer, phosphorus, potassium and magnesium are mainly based on autumn and winter basal fertilizers, and nitrogen fertilizers are applied in divided times. The basal fertilizer is applied to all organic manure, phosphorus, potassium, magnesium, trace element fertilizers and nitrogen fertilizers that account for 30-40% of the annual usage. The suitable fertilization period is between the end of September and the end of October after the end of the tea season. Base fertilizers are combined with deep ploughing. Application, application depth of about 20 cm. Fertilizers are generally nitrogen fertilizers. The top dressing period is determined based on the growth of the tea tree and the tea picking. The germination fertilizer is applied about 30 days before the spring tea, accounting for about 30% to 40% of the annual dose. The summer tea is topped with spring tea. Before summer tea begins to grow, it usually takes about 20% of the whole year in mid-to-late May. Autumn tea is topdressed after the end of summer tea. It is generally used in mid-to-late July, and the dosage is about 20% of the whole year. . For the use of only spring tea and no summer and autumn tea gardens, the amount of nitrogen fertilizer should be reduced, which can be determined according to the low-end of the above-mentioned fertilization amount; at the same time, the annual fertilization operation should be appropriately adjusted, and annual consumption should be applied before the end of spring tea and deep (heavy) pruning. 20% of nitrogen fertilizer was applied once again in the late July of that year. The dosage was about 20% of the whole year.
Oval eye nut are used for deadending, back guying and attaching pole head guys on the threaded end of crossarm bolts. Drop forged steel, manufactured from ANSI/IEEE Std C135.80. Hot dip galvanized to meet ASTM A153 specification.
Thimble eye nut are used for attaching to thru bolt or thimbleye bolts for straight away head guys. Drop forged steel, manufactured from ANSI/IEEE Std C135.80.
Thimble eyelet are used for attaching to thru-bolt or thread end of straight or angle thimbleye bolt for down guying. Drop forged steel.
Wire Rope Clip are used for securing down guys and wire rope.
Anchor Shackle used for attaching suspension-insulator units to the pole. Drop forged steel and locked with stainless steel cotter key
Yokelink Guy Clamp used to secure, hold the ends of the guy strand wires. Clamps are shipped with bolts assembled.
Deadend Accessories,Wire Rope Thimble,Angle Thimble Eyelet,Cable Suspension Clamp Ningbo Yokelink Machinery Co.,Limited , https://www.yokelink.com