Do These 3 Things Well in Winter Potato Fertilizer and Water Management to Increase Yield
Winter potato fertilizer and water management:
Practice has proven that after the tail bud of a potato grows into a plant, its yield is only 1/3 of that of a plant grown from a top bud or lateral bud. For this reason, tail buds should be discarded when cutting seed potatoes. Planting on high ridges with soil hilled up on both sides can increase the loose soil in the active soil layer around the root and stem zone, help stolons extend, and also raise soil temperature to meet the temperature needed for early root and stem development. Potatoes require large amounts of nutrients throughout their growth and development. In areas with poor soil and low nutrient content, soil testing and formulated fertilization must be carried out to meet the crop's demand for N, P, K and trace elements during growth and development, especially during tuber bulking, which can greatly increase yield.
The marketable product of the potato is the underground tuber, which does not need flowering and pollination to form, and bud formation and flowering consume large amounts of nutrients. To obtain high yield, side shoots and flowers must be removed and the tops pinched off to save nutrients and promote tuber growth. Expert research has proven that during the potato's growth process, especially during tuber bulking, if magnesium fertilizer is sufficient, not only is the yield high, but starch accumulation is also greater and quality is better. Therefore, when the plant is 45 cm tall, dissolve 50-100 grams of magnesium sulfate in water per plant and apply it as a top dressing. When sufficient base fertilizer has been applied, starting from leaf expansion, spray the leaves once every ten days with a mixture of 0.1% magnesium sulfate, 0.3% monopotassium phosphate, 1000-fold triacontanol, and Diguo Zhuangtiling, for 3-5 consecutive sprays, which can significantly increase yield.
Yield-increasing methods:
1. Do not apply excessive chlorine-containing fertilizer. Potatoes should not be given too much chlorine-containing fertilizer. When its concentration reaches a certain level, it can poison the plant roots, reduce the starch and sugar content of the product, affect yield and quality, and in severe cases even cause crop death. Therefore, use ammonium chloride, potassium chloride and similar fertilizers with caution.
2. Apply organic fertilizer as base fertilizer. Apply commercial organic fertilizer as base fertilizer. If ordinary farmyard manure is used, it must be composted at high temperature until fully decomposed to kill weed seeds and pathogens; if conditions permit, the compost can also be aged for 1-2 months. Chemical fertilizer applied in the base fertilizer should be kept 3-5 cm away from the seed potatoes to avoid affecting seed potato sprouting and emergence.
3. Time foliar fertilization properly. When spraying trace elements and Diguo Zhuangtiling on the leaves, the effect is better before 10 a.m. or after 3 p.m. Spray the first time after the seedlings reach 30 cm in height, then spray the 2nd and 3rd times at 7-day intervals. This improves the nutrient absorption capacity and bulking vigor of the underground tubers and promotes their growth rate.
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