What is phosphorus deficiency in peach trees? How to prevent it?
What is the general lack of phosphorus in peach trees? How to prevent and cure it? Symptoms of phosphorus deficiency in peach trees: in the peach orchard with heavy phosphorus deficiency, the new leaves are small, the veins on the petiole and back of the leaves are purplish red, then bronze or brown, and the leaves are at right angles to the branches. Prevention and control methods: increasing the application of organic fertilizer and improving soil is an effective way to prevent and cure phosphorus deficiency. The application of calcium superphosphate or potassium dihydrogen phosphate has obvious effect on the prevention and treatment of phosphorus deficiency. However, it must be noted that excessive application of phosphate fertilizer can cause copper and zinc deficiency. 1. Application of rotten organic fertilizer in autumn. The amount of application is 2 to 3 times the yield of peach fruit, and the effect is better when calcium superphosphate and potassium dihydrogen phosphate are mixed into organic fertilizer. 2. Topdressing available phosphate fertilizer. Diammonium phosphate or special fertilizer can be applied, and the symptoms can be relieved by spraying 0.1% to 0.3% potassium dihydrogen phosphate solution 2 to 3 times during the growing season. More peach tree planting techniques
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How does peach tree fertilize scientifically and reasonably?
Ready to fertilize the peach tree, how to fertilize the peach tree scientifically and reasonably? The main points of fertilization for peach trees are as follows: (1) early topdressing: before sprouting and in the early stage of fruit development, the first is based on available nitrogen fertilizer, and the second is the application of nitrogen, phosphorus and potassium compound fertilizer or special fertilizer for fruit trees. (2) after harvest.
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Peach fruit long black spot is what disease how to prevent and cure?
What disease is it that there are a large number of black spots on peaches? How to prevent and cure it? This is the main symptom of peach scab: peach scab mainly harms fruits and can also damage leaves and shoots. When the fruit occurs, it often produces dark brown round spots on the shoulder, gradually expands to 2-3 mm, and then shows black nevoid spots.
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