The main use of potatoes is in the form of vegetables. The edible organs are tubers and their starch content is high. Fertilization is generally dominated by organic fertilizers, with the appropriate application of nitrogen, phosphorus, and potassium fertilizers. At the same time, the application of trace element fertilizers can also increase yield and improve quality. Potatoes are good potassium crops, and the application of potash fertilizers has a significant effect on yield increase. The effect is better. Experiments show that the effects of nitrogen and potassium on potato yield show a clear interaction. In addition, boron fertilizer and magnesium fertilizer have obvious effect on increasing yield of potato. An effective boron content of 0.6-0.66 mg/kg in soil can be used as a critical range of potential boron deficiency in potato soil. Mushi 3 kg of magnesium sulfate can reduce browning symptoms in the stem.
1. The amount of fertilizer applied is 300-500 kg of organic fertilizer, 6-7 kg of pure nitrogen, 4.5-5.5 kg of phosphorus pentanitrate, and 8-9 kg of potassium oxide.
2. During the fertilization period, nitrogen fertilizer should be applied in stages, and the combination of basal fertilizer, seed fertilizer, and topdressing fertilizer should be used to meet the requirements of nitrogen for each period of potato. Phosphate fertilizers are generally mostly used as base fertilizers or seed fertilizers. If topdressing is applied deeper, the fertilizer efficiency is still not high. Potash fertilizer application period can be used as a base fertilizer, but also in the late Yenan topdressing.
3. Fertilization method, basal organic fertilizer more than 300-500 kilograms with compound fertilizer 15-20 kilograms mixed application. The specific method is: In the fall season, organic and chemical fertilizers are sprinkled on the ground before the autumn ploughing, and then the ploughing is done to fully mix the fertilizer and the soil. The second is spring application, which is applied to the surface before the spring plowing, and then tilled. The third is to apply fertilizer and apply it to the sowing ditch at the time of sowing.
Fertilizers should be used in conjunction with the potato growth period. The time can be selected at the seedling stage, bud stage and early and long term, and each fertilizer should use different fertilizers, nitrogen, phosphorus and potassium in combination. The general seedling stage and bud stage can be topdressed with nitrogenous fertilizers and phosphate fertilizers. 25 kg of ammonium sulfate and 20 kg of diammonium phosphate and 20 kg of potassium sulfate are used per acre. Phosphorus and potassium fertilizers were applied during the bud and early flowering stages, and 10 kg of diammonium phosphate and 15 kg of potassium sulfate were used. Never use nitrogen fertilizer after the flowering period, so as not to cause stems and leaves to grow long. Affects the transport of nutrients to tubers.
The borax-magnesium fertilizer and other medium-sized fertilizers generally begin to be sprayed at the early flowering stage, once every 7 days, three times in a row. Concentration in the borax 0.05%, 0.5% magnesium sulfate.
Alcohol Spray,Spray Hand Sanitizer,Hand Sanitizer Alcohol,Hand Sanitizer Liquid
Wuxi Keni Daily Cosmetics Co.,Ltd , https://www.kenidailycosmetics.com