How to apply seed fertilizer to cultivated potatoes?

Potato is one of everyone’s favorite vegetables. Mainly spring potatoes are cultivated because spring cultivation is easier, the yield is high and relatively stable, while summer sowing and autumn sowing are mostly done to save seeds. So how to apply seed fertilizer to potatoes during cultivation? I will talk about the application of potato seed fertilizer in combination with soil preparation and fertilization for spring sowing.

Prepare the land and apply basal fertilizer before sowing

Potatoes are crops that like to be rotated. If more organic fertilizers are applied year by year, they can be grown continuously for about 2 to 3 years. Potatoes have strong adaptability to soil and like loose, fertile, well-drained soil. They have high requirements for soil porosity. Loose soil with good aeration is conducive to the expansion of potato tubers and can prevent later tuber rot. Therefore, the land should be cultivated intensively before sowing to lay the foundation for the rapid development of tubers later.

It is best to carry out stubble control treatment after the previous crop is harvested. Then plow deeply about 30 centimeters. After deep plowing, it is best to harrow and break up the soil in time. If there are irrigation conditions, winter irrigation should be done so that the empty soil in the soil sinks and the topsoil is broken and soft. Base fertilizer can be applied during soil preparation.

The base fertilizer needs to be rich in organic matter. Compost made from fully decomposed mule, horse, cattle and sheep manure and weed straw can be applied to make the soil soft and the fertilizer effect is complete and long-lasting. In particular, mule and horse manure can improve potato scab. disease function. If the basal fertilizer is sufficient, the basal fertilizer should be combined with the cultivated land or turned into the tillage layer when cultivating the land. It is recommended to apply 1000kg~2000kg of livestock manure per acre. The remaining basal fertilizer should be concentrated in the furrow when opening the sowing furrow; if the basal fertilizer is insufficient, all the basal fertilizer should be applied in the furrow. Give.

Seed fertilizer is applied in holes

Why it is necessary to apply seed fertilizer in holes? This is because applying seed fertilizer in holes before sowing can quickly transform the nutrients in the seed potatoes during the germination period and supply them to the young shoots and roots. Growth plays a big role. We have done experiments and found that 9.3% of starch in seed potatoes with superphosphate applied to the hole can be converted into sugar 20 days after sowing; 6.7% of starch in seed potatoes applied with superphosphate and ammonium nitrate; The number of potassium chloride is 4.6; the number of mixed seed fertilizers of phosphorus fertilizer and nitrogen fertilizer soared to 345.

Through the application of various seed fertilizers, we found that the application of urea, calcium magnesium phosphate fertilizer and plant ash has the best effect. It is recommended to apply 2.5~5kg of urea, 10~15kg of calcium, magnesium and phosphate fertilizer per mu, and 25~50kg of plant ash per mu. When applying seed fertilizers combined with pesticides, you can effectively control potato underground pests.

Seed fertilizer applied in holes can quickly convert nutrients into sugars to supply the growth of young shoots and roots. Therefore, it is recommended that farmers should try their best to apply fertilizer carefully in the early stage of potato planting to ensure high potato yields. Laying a good foundation is also a prerequisite for achieving a good harvest.