What is lotus root black spot? How to prevent and cure it?
What is lotus root black spot? How to prevent and cure it? Please introduce that the black spot of lotus root shows a small needle-like yellow-brown spot at the initial stage, and the whole leaf is covered with disease spots with wheel lines in the later stage, causing half-leaf or whole leaf to dry up. Prevention and treatment: increase the application of phosphorus and potassium fertilizer and avoid partial application of nitrogen fertilizer. In winter, the diseased and residual leaves were thoroughly removed and burned in the field, and the diseased leaves were removed and sprayed at the initial stage of the disease. Commonly used 70% thyroid 1000 times liquid or 65% Dyson zinc 600 times solution, or 1 rig 1rig 160-200 times Bordeaux solution, spray every 10 days, a total of 2-3 times. Click to get more lotus root planting techniques click to get more vegetable planting techniques
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How to manage the planting of lotus root?
How to manage the planting of lotus root? Please give a detailed description of planting lotus root can refer to the following methods for management: planting lotus root topdressing can be topdressing 2-3 times. The first time when the standing leaves grow 1-2, the second time before the row is sealed, and the third time when the rear leaves appear. Manure is applied for the first time every 667 square meters (mu) 200.
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How does planting lotus root prevent brown spot disease?
How does planting lotus root prevent brown spot disease? Please give an introduction to planting lotus root can refer to the following methods to prevent brown spot disease: First, symptoms. This disease mainly damages the leaves and petioles of lotus roots. The leaves produce brownish green spots at the beginning of the disease, which later expand into reddish brown to dark brown irregular to angular necrotic spots...
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