When growing potatoes, the use of biological fertilizer dressing, base fertilizer and top dressing can make the potato germinate quickly, high germination rate, neat germination, bud seedlings robust, stems and leaves green, free from root-knot nematodes, blight, soft rot Diseases, blight, and potato wilt disease damage, early potato and more, young potato development is good, not deformed, potato type upright, rapid expansion, starch accumulation, large potatoes, plants do not premature aging, yield and quality are significantly improved. Specific fertilization methods are as follows:
Seed dressing. After the potato seed potato is cut longitudinally, the wound of the potato seed potato is cut to remove the biological bacterial fertilizer, so that the wound is covered with the biological bacterial fertilizer and then planted. Or soak the potato seed potatoes in clean water for 1-2 minutes so that the potato seed potatoes are moistened and then picked up. Then the bacteria seedlings are smeared with biological bacteria and then planted. It is also possible to add a small amount of fresh water to the biological bacterial fertilizer, fully stir and moisten it, and then use the potato seed potato to pick up the biological bacterial fertilizer so that the seed potato surface is covered with biological bacterial fertilizer and then planted.
Do base fertilizer. When planting potatoes, 80 to 100 kilograms of biological fertilizer is used as base fertilizer per acre. First, dig a good planting hole, plant seed potatoes, and apply biological bacterial fertilizer next to the seed potatoes. Then, cover the soil with a thickness of 8 to 10 cm to cover all the seed and biological fertilizers.
top dressing. During the growth and development of potatoes, when the plants are 25 to 30 cm in height, when the young potatoes begin to expand, and when the young potatoes rapidly expand, each topdressing biological bacterial fertilizer is applied at a rate of 150 to 200 kg per mu. In combination with earth, the biological bacterial fertilizer is evenly spread on the soil around the roots of the potato plants, and then a layer of soil having a thickness of about 8 to 10 cm can be applied.
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