Prevention: Add base fertilizer: mainly organic fertilizer, supplemented by chemical fertilizer, rational fertilization, organic fertilizer must be decomposed, and harmless treatment. About 2,500 kilograms of high-quality organic fertilizer is applied per acre, about 1.5 kilograms of zinc sulfate, mixed with organic fertilizer, combined with soil preparation, and applied to the soil as base fertilizer. Zinc Fertilizer Seed Dressing: 20 to 40 grams of zinc sulfate per kilogram of corn seed can be mixed. When dressing, first dissolve the fertilizer with a little water, spray it on the seed, mix well, and then dry it and sow. Scientific dressing: mainly outside the root dressing, this is a good way to find the "white seedlings" of corn after applying zinc fertilizer. Concentration and dosage is sprayed with 0.1 to 0.2% zinc sulfate solution per acre 40 to 50 kg, starting from the time of corn jointing, spraying once every 10 to 15 days, even spraying 2 to 3 times, the effect is more obvious .
A shaker is a piece of Laboratory Equipment used to mix, blend, or agitate substances in a tube or flask by shaking them. It is mainly used in the fields of chemistry and biology. A shaker contains an oscillating board that is used to place the flasks, beakers, or test tubes. Although the magnetic stirrer has lately come to replace the shaker, it is still the preferred choice of equipment when dealing with large volume substances or when simultaneous agitation is required.
Lab Shaker,Economical 3D Shaker,Lcd Digital 3D Shaker,Lab 3D Shaker Unimedsume Trading Co., Ltd , https://www.ums-labmed.com
Causes of corn white seedlings and control measures
In the corn field, white seedlings often appear at seedling stage, which is caused by zinc deficiency. Generally from the 4 leaf stage, the leaf color at the base of the new leaf becomes pale yellowish-white. At the 5-6 leaf stage, yellowish and light green stripes appear between the 1st and 3rd leaves of the heart, but the veins are still green and the purple stripes appear at the base. After 10 to 15 days, the purple color gradually turns yellow-white, and the leaves lose weight. , was "white seedlings." When serious, the whole field is white. Zinc-deficient corn plants are dwarf, with short internodes, overlapping leaf pillows, slow-growing hearts, and a flat top. In severe cases, white leaves gradually dry out, and the entire plant dies.