Tea tree deficiency

Symptoms: A young leaf with a nitrogen deficiency is light green in color, and the lower middle leaf turns into a lemon color and gradually leaves off. The newly grown leaves of the two phosphorus deficiency were thin and thin, and the petioles and leaf veins were purple or purple. The edge of the three old potassium leaves chlorosis, browning, and coking. Afterwards, the leaves of the upper leaves gradually expand and the old leaves fall off. Four of the old magnesium leaves are dark and fragile, brown leaves with yellow veins between the functional leaves, and gradually become brown inlaid between the main veins that remain green, leaf margin chlorosis and necrosis. The leaf margin of the five-deficient manganese leaves turned yellow and gradually expanded towards the main vein. Brown spots appeared afterwards. The pathological state developed from top to bottom. When severe, the top bud darkened and drooped and the growth stopped. Sixth, sulfur deficiency appears similar to the symptoms of nitrogen deficiency. Seven deficient zinc leaves have small or yellow spots, shortened internodes, wavy curves of the veins, and leaves become white when severely deficient in zinc. Eight yellow copper leaves appear yellow in the tips of the leaves, and later spread to the entire leaves yellowing. Nine deficient platinum leaves appear yellow and bend inward.

The cause of a lack of nutrients in the soil, so that the tea tree can not absorb the required amount. Second, the imbalance of nutrients in the soil, the normal metabolism of the crop body requires the relative balance of nutrient elements to maintain a balance, otherwise there will be metabolic disorders, causing lack of prime. Picking is irrational. On the production stage of the tea tree, the first leaf was taken for analysis. Nitrogen content less than 3% indicates nitrogen deficiency. The third leaf phosphorus pentoxide less than 0.26% 0.4% indicates that phosphorus deficiency. The third leaf potassium oxide is less than 1.5% to 1.8% indicating potassium deficiency.

Prevention methods (1) nitrogen, phosphorus, potassium and three elements combined application. Generally PzO s:K 2d:N is preferably 2:1:1. (2) Advocate the use of compost or fermented organic fertilizer. Do organic and inorganic fertilizer application. Use a small amount of fertilizer as topdressing to prevent excessive nitrate levels. The use of formula fertilization technology, pay attention to NPK combined with trace elements. Grade fertilizer. In the vast tea region of the middle and lower reaches of the Yangtze River, basal fertilization should be applied in combination with deep ploughing from September to November. It should be sooner rather than later, while the Jiangbei Tea Region and some alpine tea regions should be treated with basal fertilizer as soon as the temperature drops early. The month is appropriate; in the South China tea area, the temperature drops late, and basal fertilizer can be postponed until November or December. (3) Strengthen the management of tea gardens, prevent drought and freeze, make them grow robust, timely water irrigation during drought, regulate the temperature and humidity in the garden, make the tea tree shoots grow faster, so that picking is reasonable. (4) Rational fertilization, prescribe the right medicine. 1 to prevent nitrogen-based ammonium sulfate 20-30kg, can also spray 0.5% urea solution. 2 to prevent phosphorus deficiency foliar spraying 1% superphosphate or 0.5% potassium dihydrogen phosphate. 8 Prevent potassium deficiency from spraying 0.5% potassium sulfate or 0.5% potassium dihydrogen phosphate solution. 4 to prevent magnesium deficiency foliar spray fertilizer containing magnesium. 5 to prevent the lack of manganese leaf spraying 0.01% manganese sulfate solution. 6 Prevent sulfur-deficient application of sulfur-containing fertilizers such as ammonium sulfate, potassium sulfate, and superphosphate. 7 to prevent zinc deficiency foliar spraying 0.05% zinc sulfate solution. 8 to prevent the copper leaf surface spraying 0.1% copper sulfate. 8 to prevent the lack of platinum leaf spraying 0.02% ammonium molybdate solution. It is advisable to collect 500 grams of spewing liquid fertilizer from 20 to 30 days before picking tea.

Amino Acids are biologically important organic compounds composed of amine and carboxylic acid functional groups, along with a side-chain specific to each amino acid. With biological significance, amino acids are important in nutrition and are commonly used in Nutritional Supplements, fertilizers, and food technology. Industrial uses include the production of drugs, biodegradable plastics, and chiral catalysts.

Amino Acids

Natural Amino Acids,Amino Acids Powder,Amino Acids Particles,Amino Acids Tablets

SINOCHEM PHARMACEUTICAL CO., LTD , http://www.sinochemnutrition.com