What fertilizer is better for peanut planting?

Peanuts are one of the main economic crops in our country, and the planting area in our country is also quite large. They are rich in nutrients such as fat and protein and have extremely high nutritional value for people. Fertilization is essential during the growth of peanuts. Applying fertilizer well is the prerequisite for increasing peanut yield and quality. Now let us take a look at what fertilizer is good for growing peanuts!

Principles of fertilizer requirements for peanuts

1. Major elements: The proportion of the three major elements nitrogen, phosphorus, and potassium required by peanuts is 3:0.4:1. Nitrogen is needed the most, potassium second, and phosphorus the least. Therefore, when applying major element fertilizers, nitrogen should be the main focus and potassium should be applied in an appropriate amount.

2. Trace elements: Peanuts have the greatest demand for several elements such as calcium, sulfur, and magnesium. Calcium can promote faster growth of peanut plants, sulfur can increase the protein content of the kernels, and magnesium can promote the normal formation of chlorophyll in peanut leaves.

Fertilization principles for peanut planting

1. Organic fertilizers as the main type, inorganic fertilizers as a supplement: Organic fertilizers have complete nutrients, can increase soil aggregate structure, improve soil physical and chemical properties, and are beneficial to the activity of rhizobia, increasing the source of nitrogen. Used in combination with chemical fertilizers, they can reduce the loss and fixation of inorganic fertilizers.

2. Apply sufficient base fertilizer and topdress appropriately: Use organic fertilizer as base fertilizer. After applying sufficient base fertilizer, quick-acting fertilizers should be topdressed in a timely and appropriate amount according to growth conditions. At the same time, nitrogen, phosphorus, potassium, and microfertilizers should be reasonably matched, and in the middle and late stages, foliar fertilizer should be sprayed according to growth conditions.

What fertilizer is good for planting peanuts?

1. Base fertilizer: Base fertilizer includes bottom fertilizer and seed fertilizer. The fertilizer applied before sowing in combination with plowing is called bottom fertilizer, and the fertilizer applied in concentrated form in furrows or holes at sowing is called seed fertilizer. Peanut base fertilizer accounts for more than 80% of the total fertilizer and should mainly be organic fertilizer supplemented with fertilizers such as nitrogen and phosphorus. The specific application method varies with the type and amount of fertilizer. Generally, scattered application and concentrated application should be combined, with most of it broadcast as bottom fertilizer during land preparation before sowing, and a small portion retained for concentrated furrow application or hole application combined with sowing. In order to improve the effectiveness of phosphate fertilizer, phosphate fertilizer and organic fertilizer can be composted together for 15-20 days before application. When sowing peanuts, mixing seeds with rhizobium inoculant can increase effective rhizobia. In addition, mixing seeds or soaking seeds with 0.2-0.3% ammonium molybdate or 0.01-0.1% boric acid aqueous solution can supplement the trace elements needed by peanuts.

2. Topdressing: Topdressing should be done in a timely manner according to the growth conditions of peanuts. Topdressing at the seedling stage should be carried out before the beginning of flowering. Generally, 80-100 kg/sq km of urea and 150-200 kg/sq km of calcium superphosphate are applied in furrows. After flowering, 300-400 kg/sq km of gypsum powder and 150-200 kg/sq km of calcium superphosphate can be applied to increase phosphorus and calcium nutrition during the pod-setting stage. If fertilizer deficiency occurs during the pod-filling and full-pod stage of peanuts and topdressing cannot be carried out, 0.2% potassium dihydrogen phosphate and 2% urea can be sprayed on the leaves 1-2 times, which can play a role in protecting roots and leaves and improve the pod-setting rate and full-pod rate.