Corn sorghum millet soy best dressing period
2020-10-24 13:16:55
1. The corn and maize have a long time for sucking fertilizer, and the amount of fertilizer needed is also relatively large. Basing on applying base fertilizer and seed fertilizer, they are often unable to fully meet the needs. Therefore, topdressing is also required. After the jointing of the corn to the big bell-mouth period, it is the peak period of absorbing nutrients. Generally, the first fertilizer can be applied before and after jointing, and 12 kg of nitrophosphate can be topdressed per acre; 7-10 days before tasselling, the top dressing should be applied. For the second fertilizer, a further 15 kg of nitrophosphate can be applied per acre. If the base fertilizer and seed fertilizer are more abundant and the soil is very fertile, you can concentrate on topdressing once, and use the second spade for deep fertilization.
2. The joint growth from sorghum and sorghum to heading stage is the period of vegetative growth and reproductive growth. It is the most prosperous period in the whole growth period. Not only does the stem and leaf grow rapidly, but it also enters the stage of young panicle differentiation, and the absorption nutrients reach the highest peak at this time. It is the maximum period of time needed for fertilizer. In order to meet the sorghum's need for nutrients, the first fertilizer should be applied at the jointing stage, and 10 to 15 kg of nitrophosphates should be applied per acre; the second fertilizer should be applied at the booting flag stage to apply nitrate fertilizer per acre. 8 kg.
3. The jointing of foxtail millet to the heading stage is a period of vegetative growth and reproductive growth. At this time, it is extremely sensitive to fertilizer requirements. The main direction of field management is to attack the strong strains and attack the flowers. If you apply a fertilizer. After jointing, it can be combined with shoveling twice or three times to cover 15 kg of phosphate fertilizer per acre. Can be divided into two fertilizers, the first time in the jointing stage, 10 kg of ammonium nitrate per hectare followed; the second time in the booting stage followed by 10 kg of nitrophosphate. This will not only promote the growth of the seedlings at the seedling stage, but also ensure adequate nutrient uptake during late filling.
4. Soybeans Soybeans are crops requiring more N fertilizers, and their rhizobia can only satisfy 1/2-1/3 of the total nitrogen requirement. Therefore, the timely supply of nitrogen fertilizer has a significant effect on soybean production. Usually in the initial flowering stage of soybean, topdressing nitrogen fertilizer is used to reduce the rate of falling flowers and to prolong the life of the plant. Increase grain weight and increase production. Generally, 10-15 kg of nitric phosphate fertilizer is applied per acre. In the period of soybean pod dressing, dressing can be carried out once a day. The effect of increasing yield is more obvious.
2. The joint growth from sorghum and sorghum to heading stage is the period of vegetative growth and reproductive growth. It is the most prosperous period in the whole growth period. Not only does the stem and leaf grow rapidly, but it also enters the stage of young panicle differentiation, and the absorption nutrients reach the highest peak at this time. It is the maximum period of time needed for fertilizer. In order to meet the sorghum's need for nutrients, the first fertilizer should be applied at the jointing stage, and 10 to 15 kg of nitrophosphates should be applied per acre; the second fertilizer should be applied at the booting flag stage to apply nitrate fertilizer per acre. 8 kg.
3. The jointing of foxtail millet to the heading stage is a period of vegetative growth and reproductive growth. At this time, it is extremely sensitive to fertilizer requirements. The main direction of field management is to attack the strong strains and attack the flowers. If you apply a fertilizer. After jointing, it can be combined with shoveling twice or three times to cover 15 kg of phosphate fertilizer per acre. Can be divided into two fertilizers, the first time in the jointing stage, 10 kg of ammonium nitrate per hectare followed; the second time in the booting stage followed by 10 kg of nitrophosphate. This will not only promote the growth of the seedlings at the seedling stage, but also ensure adequate nutrient uptake during late filling.
4. Soybeans Soybeans are crops requiring more N fertilizers, and their rhizobia can only satisfy 1/2-1/3 of the total nitrogen requirement. Therefore, the timely supply of nitrogen fertilizer has a significant effect on soybean production. Usually in the initial flowering stage of soybean, topdressing nitrogen fertilizer is used to reduce the rate of falling flowers and to prolong the life of the plant. Increase grain weight and increase production. Generally, 10-15 kg of nitric phosphate fertilizer is applied per acre. In the period of soybean pod dressing, dressing can be carried out once a day. The effect of increasing yield is more obvious.
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