The early winter potato is one of the main crops planted in winter and field in low-lying areas of Zhaoyang District. Due to the short production period, it does not affect the planting season of Dachunchun crops, and the cost is low, cultivation is easy, and the yield is high. It is very popular among farmers. welcome. The winter potato fertilization technology is introduced as follows:
One is the use of 1500 m of farmyard manure, and 80 of potato special fertilizer, and piling up and fermentation after 10 days of sowing in order to avoid fertilizer damage;
The second is when planting Mu with potassium sulfate 10?, B? Magnesium fertilizer 5?, 5 kg of zinc sulfate and fermented fertilizer and mix well for cover pond fertilizer;
The third is to wait until the seedlings all go out together to break the membrane and water to recover the first fertilizer. The mu urea 20kg and the compound fertilizer 15kg are used as the hole for fertilization.
Fourthly, the first time after topdressing, the soil was topped with a combination of cultivating soil and watering for the second time. After each application of 15 kg of urea and 50 kg of ammonium nitrate, it was applied as a hole;
Fifth, it is advisable to apply 5-10 cm from the stem when applying fertilizer.
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