What kind of fertilizer is used for peanut fertilization?

Peanut is a common crop in our country, which is planted almost everywhere, and if you want to grow peanuts well, you need to apply good fertilizer. What kind of fertilizer do you use to fertilize peanuts?

What kind of fertilizer is used to fertilize peanuts?

Nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, calcium fertilizer, sulfur fertilizer and so on are used for peanut fertilization. Among them, the demand for nitrogen fertilizer, phosphate fertilizer and potash fertilizer is the highest, with a ratio of 3 to 0.4, followed by sulfur, magnesium and other elements. Generally, organic fertilizer is the main fertilizer, inorganic fertilizer is the auxiliary, and foliar fertilizer is sprayed according to the growth situation in the middle and later stage under the condition of sufficient organic fertilizer.

Second, how to fertilize peanuts?

1. Base fertilizer: base fertilizer includes base fertilizer and seed fertilizer. The fertilizer applied in combination with cultivated land before sowing is called base fertilizer, and the fertilizer applied centrally in sowing ditches or holes is seed fertilizer. Peanut base fertilizer accounts for more than 80% of the total fertilizer, and organic fertilizer should be combined with nitrogen, phosphorus and other fertilizers. The specific application method varies with the type and quantity of fertilizer, and generally should be dispersed and concentrated. Most of the soil preparation before sowing should be used as base fertilizer, leaving a small part combined with sowing and concentrated ditch application or hole application. In order to improve the efficiency of phosphate fertilizer, phosphate fertilizer and organic fertilizer can be compost for 15-20 days before fertilization. Seed dressing with rhizobium agent during peanut sowing can increase effective rhizobium bacteria, and seed dressing or soaking with 0.2-0.3% ammonium molybdate or 0.01-0.1% boric acid aqueous solution can supplement the trace elements needed for peanuts.

2. Topdressing: topdressing should be carried out timely according to the growth of peanuts, and topdressing at seedling stage should be carried out before the beginning of flowering. Generally, topdressing urea 80 kg / sq km, calcium superphosphate 150 kg / sq km, trench strip application. After flowering, gypsum powder 300 kg / square km and calcium superphosphate 150 kg / square km can be applied to increase the nutrition of phosphorus and calcium in the fruiting period. In the case of peanut podding and full fruit period without topdressing, 0.2% potassium dihydrogen phosphate and 2% urea can be foliar sprayed for 1 or 2 times, which can protect roots and leaves, and improve seed setting rate and fruit satiety rate.