First, hi-hat cover needle
Peanuts will form a large number of flowering needles at flowering stage. Flowering needles will form pods when they are introduced into the soil. The greater the number of needles inserted into the soil, the greater the amount of peanuts in the later period, but about 50% of the flower needles cannot be inserted into the soil. You can use hi-hat or cover the soil to increase the rate of penetration of the flower needle, so that each hole peanut more than 3-5 fruit knot.
Method of operation: After 4 o'clock in the afternoon on the sunny day of the peanut growth period, when the peanut seedlings are stepped on the ground or when the peanuts are dropped during the flowering period, fine soil can be used to spread the soil from the top of the seedlings to cover the flowers. The effect of increasing fruit production and increasing yield can be achieved by allowing more flower needles to enter the soil to form pods.
Second, peanut pruning
Everyone knows that the pruning of fruit trees can trigger new side branches, and that peanuts can also be pruned to increase production. Peanut pruning can reduce nutrient consumption of ineffective shoots, supply more nutrients to branches and pods, promote more branches and more results, promote fullness of grain, and increase yield.
Method of operation: In the presence of peanut calyx, cut off the weak branches and saplings on the peanut seedlings. The height of the seedlings and the height of the pods were 4 for each brood and 3 for each of the dwarf and weak larvae.
Third, peanuts topping
Plants generally have apical dominance, while peanuts have a particularly strong apical dominance. Peanut topping can regulate the nutrient distribution of the plant, which can not only play the role of dwarfing seedlings, enhancing branch stalks, increasing branching and flowering number, but also improving the efficiency of photosynthesis in leaves and increasing the formation of organic matter, thereby increasing the yield and income. the goal of.
Method of operation: 10-15 days after the flowering period of peanuts, the main stems of the seedlings can be removed or cut off, and 1 and 2 pairs of lateral branches can be retained.
Fourth, peanut calcium and phosphorus
Calcium and phosphorus nutrient-rich peanuts have great advantages in shell formation and grain plumpness, while calcium and phosphorus-deficient peanuts have problems such as dry leaves, less pods, more empty pods, and dried grains.
Operation method: You can apply 10-15 kg of gypsum powder or superphosphate per acre when the peanuts fall for 2-3 weeks or during the fruit period. You can also spray 2% superphosphate solution on the leaves.
V. Molybdenum, boron and phosphorus
There are many trace elements in the growth period of peanuts. Not only do they need traces of calcium and phosphorus, but they can also add appropriate amounts of molybdenum and boron, which can also increase production by 10-15%.
Operation method: 0.2% borax and 0.15% ammonium molybdate can be sprayed separately in the early flowering and growing stages of peanuts. The amount of aqueous solution used per mu is 50kg. Mixing 0.2-0.3% of potassium dihydrogen phosphate can increase the yield. .
Six, peanut spray paclobutrazol
Paclobutrazol has two functions: promoting growth and controlling growth, promoting low growth and controlling growth. Peanuts spraying paclobutrazol at a suitable concentration can increase the chlorophyll content of leaves and increase the photosynthetic function. At the same time, it can reduce the transpiration of leaves, promote the development of robust roots, increase the absorption of nutrients, and play a role in enhancing drought resistance, lodging prevention, and improving the rate of fruit filling. effect.
Method of operation: It is possible to spray 300 times of 15% paclobutrazol solution for 50 kilograms in the seedling stage at 5-6 leaves and at full bloom.
Seventh, prevent leaf spot disease
Peanuts are known to have a lot of defoliation in the event of leaf spot disease, which weakens the photosynthesis of the seedlings and reduces the production of organic matter, resulting in a smaller fruit pod in the later period, a small grain and not full, capable of reducing 10-20%. The yield.
Operation method: It can be sprayed in 800-1000 times of 80% carbendazim or 1000 times 75% thiophanate per acre in the middle and late period of peanuts, and 80 kg in water, which has a very good effect in controlling peanut leaf spot.
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