Application Technology of Micro Fertilizer on Peanut
2020-04-09 12:10:53
Trace elements play an important role in the growth and development of peanuts and can not be replaced by a large number of elements (such as nitrogen, phosphorus, potassium, etc.). Scientifically increasing trace element fertilizers is an important measure for high quality and high yield of peanuts.
Iron fertilizer: When iron is lacking, the plants are dwarf, with few branches, late flowering, less flowers, less root nodule, poor root development, and 1-3 of the compound leaf-leaf parts below the heart leaf are obviously chlorotic, but the veins are still green. In severe cases, the veins are chlorotic and yellow, and the upper leaves are yellow-white. The leaves of the leaves appear brown necrotic spots until the leaves die. The use of iron fertilizers on iron-deficient soils generally increases peanut production by more than 10%. Application method: 1 as base fertilizer. During soil preparation, 200-400 g of ferrous sulfate was applied to Mushi (mixed with organic fertilizer or superphosphate); 2 for seed fertilizer. Before sowing, soaking with 0.1% ferrous sulfate solution for 24 hours, remove and dry seed coat; 3 sprays. When the symptoms of yellowing occur in peanut needle stage, scarring stage or new leaves, they are sprayed with 0.2% ferrous sulfate solution and sprayed once every 5 to 6 days. Continuous spraying is performed 2 or 3 times.
Boron fertilizer: When the boron is deficient, the plants are short, with many branches and clustered growth. The color of the veins of the unfolded heart is light, and the rest is dark in color. The leaves are small and shrunken. The tips of the leaves are yellow and gradually expand outward. The leaf margins are dry and the leaf pillows have brown marks, so that the petioles cannot stand upright, even sagging. The old leaves are dark in color, the plants have little or no flowers, the roots are easy to age, the spreading ability is weak, there are few roots, and the root tip has dark spots. Easy to necrosis, poor kernels; easy to form shellless hollow fruit. Application of boron fertilizer on boron-deficient soil can increase peanut production by 7.8 to 22.5%. Application method: 1 as base fertilizer. Mu application of boric acid or borax 0.2 ~ l kg (with organic fertilizer or nitrogen, phosphorus fertilizer mixed application); 2 for seed fertilizer. Before sowing, soaking with 0.02 ~ 0.05% boric acid or borax solution for 4 ~ 6 hours, or boiled with boric acid or borax 0.4 kg per kilogram of peanut seed; 3 for top dressing. Per acre with boric acid or borax 50 to 100 grams, mixed in a small amount of decomposed organic fertilizer, topdressing before flowering; 4 outside spraying. In the peanut seedling stage, initial flowering stage and flowering stage, spraying with 0.2% boric acid or borax solution.
Manganese Fertilizer: In the absence of manganese, the veins of the leaves are yellowed and the veins tend to remain green. Manganese fertilizer on manganese-deficient soil can increase peanut production by 8 to 11%. Application method: 1 as base fertilizer. At the time of site preparation, 1.5 to 3.0 kg of manganese sulphate was applied; 2 for seed fertilizer. Before sowing, soaking with 0.05 to 0.1% manganese sulfate solution for 12 to 24 hours; 3 external spraying. From 30 to 50 days after sowing of peanuts, and 15 to 20 days before harvest, spraying with 0.1% manganese sulfate solution once every 10 to 14 days; when necessary, it can be mixed with fungicides for controlling leaf spot of peanut.
Zinc fertilizer: In the absence of zinc, leaf stripe chlorosis occurs, and the band is usually on the leaf blade closest to the petiole. In severe cases, the entire leaflet loses green. Applying zinc fertilizer on zinc-deficient soil can increase peanut production by 12.5 to 13.2%. Application method: 1 as base fertilizer. At the time of site preparation, 1 kg of zinc sulphate was applied to Mushi; 2 was used as seed fertilizer. Before sowing, soaking with 0.1-0.5% zinc sulfate solution for 12 hours, remove and dry seed coat.
Iron fertilizer: When iron is lacking, the plants are dwarf, with few branches, late flowering, less flowers, less root nodule, poor root development, and 1-3 of the compound leaf-leaf parts below the heart leaf are obviously chlorotic, but the veins are still green. In severe cases, the veins are chlorotic and yellow, and the upper leaves are yellow-white. The leaves of the leaves appear brown necrotic spots until the leaves die. The use of iron fertilizers on iron-deficient soils generally increases peanut production by more than 10%. Application method: 1 as base fertilizer. During soil preparation, 200-400 g of ferrous sulfate was applied to Mushi (mixed with organic fertilizer or superphosphate); 2 for seed fertilizer. Before sowing, soaking with 0.1% ferrous sulfate solution for 24 hours, remove and dry seed coat; 3 sprays. When the symptoms of yellowing occur in peanut needle stage, scarring stage or new leaves, they are sprayed with 0.2% ferrous sulfate solution and sprayed once every 5 to 6 days. Continuous spraying is performed 2 or 3 times.
Boron fertilizer: When the boron is deficient, the plants are short, with many branches and clustered growth. The color of the veins of the unfolded heart is light, and the rest is dark in color. The leaves are small and shrunken. The tips of the leaves are yellow and gradually expand outward. The leaf margins are dry and the leaf pillows have brown marks, so that the petioles cannot stand upright, even sagging. The old leaves are dark in color, the plants have little or no flowers, the roots are easy to age, the spreading ability is weak, there are few roots, and the root tip has dark spots. Easy to necrosis, poor kernels; easy to form shellless hollow fruit. Application of boron fertilizer on boron-deficient soil can increase peanut production by 7.8 to 22.5%. Application method: 1 as base fertilizer. Mu application of boric acid or borax 0.2 ~ l kg (with organic fertilizer or nitrogen, phosphorus fertilizer mixed application); 2 for seed fertilizer. Before sowing, soaking with 0.02 ~ 0.05% boric acid or borax solution for 4 ~ 6 hours, or boiled with boric acid or borax 0.4 kg per kilogram of peanut seed; 3 for top dressing. Per acre with boric acid or borax 50 to 100 grams, mixed in a small amount of decomposed organic fertilizer, topdressing before flowering; 4 outside spraying. In the peanut seedling stage, initial flowering stage and flowering stage, spraying with 0.2% boric acid or borax solution.
Manganese Fertilizer: In the absence of manganese, the veins of the leaves are yellowed and the veins tend to remain green. Manganese fertilizer on manganese-deficient soil can increase peanut production by 8 to 11%. Application method: 1 as base fertilizer. At the time of site preparation, 1.5 to 3.0 kg of manganese sulphate was applied; 2 for seed fertilizer. Before sowing, soaking with 0.05 to 0.1% manganese sulfate solution for 12 to 24 hours; 3 external spraying. From 30 to 50 days after sowing of peanuts, and 15 to 20 days before harvest, spraying with 0.1% manganese sulfate solution once every 10 to 14 days; when necessary, it can be mixed with fungicides for controlling leaf spot of peanut.
Zinc fertilizer: In the absence of zinc, leaf stripe chlorosis occurs, and the band is usually on the leaf blade closest to the petiole. In severe cases, the entire leaflet loses green. Applying zinc fertilizer on zinc-deficient soil can increase peanut production by 12.5 to 13.2%. Application method: 1 as base fertilizer. At the time of site preparation, 1 kg of zinc sulphate was applied to Mushi; 2 was used as seed fertilizer. Before sowing, soaking with 0.1-0.5% zinc sulfate solution for 12 hours, remove and dry seed coat.
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