When to apply boron and molybdenum fertilizer to peanuts

Peanuts in the planting process need to apply a variety of fertilizers, so when do peanuts apply boron molybdenum fertilizer? Let's take a look together!

1. When do peanuts use boron molybdenum fertilizer?

Peanuts need boron and molybdenum fertilizer at the flowering and needling stage, because when peanuts bloom and needling, the soil is short of boron and molybdenum, which easily leads to poor peanut nodule development, fewer fruit pods, empty shells and less full fruits. If the peanut pods become less, empty shell situation is more serious, can be applied before sowing boron molybdenum fertilizer.

Molybdenum deficient peanut showed short plant, yellow green leaves or chlorosis between veins; boron deficient peanut showed short main stem and lateral branches, easy to fall off leaves at the top of stem, scorched and necrotic growth points, short plant shadow, showing "cluster" shape. Stems and rhizomes have obvious cracks, new leaves are small and shriveled, old leaves are yellow and thick and brittle, petioles droop. Root system is underdeveloped, fibrous root is few, short root is much, root tip has necrotic spot. Long flowering time and few flowers.

Second, the specific method of peanut boron molybdenum fertilizer

1. The dosage of boron and molybdenum fertilizer for peanuts is 300-500 grams per mu;

2, according to the planting amount of peanuts per mu with 15 grams of ammonium molybdate seed dressing. Seed dressing method is: Dan Tong + mixing potential package mixed with 200 ml water seed dressing 25-30 jin fully mixed evenly, after drying can be sown.

3. Foliar spraying. 20 ml of Dantong was sprayed on leaves in each barrel of water, 2 barrels of water in one mu of land, and the effect was better when spraying once at seedling stage and flower needle stage.

Molybdenum fertilizer could significantly enhance the activity and nitrogen fixation of rhizobia, promote protein synthesis, promote flowering, fertilization and full fruit of crops, and have greater yield potential. Especially for the sandy soil lacking molybdenum, the effect of molybdenum fertilizer is more obvious.

Boron has the effect of strengthening the conducting tissue. Boron can improve peanut rhizobia nitrogen fixation and drought resistance. In peanut reproductive body, the most boron content is found in flower, especially stigma and ovary. Boron can stimulate peanut pollen germination and pollen tube elongation, which is beneficial to fertilization.