1. Chasing flower pod fertilizer
The growth and development of soybean flowering and pod-forming period is the strongest, which is the period when soybean needs most fertilizer in its lifetime. Application of flower pod fertilizer can reduce flower pod loss, promote grain fullness and improve quality. The flower pod fertilizer should be applied at the initial flowering stage. It is better to use nitrogen and phosphorus fertilizer together. The urea is applied for 3-5 kg ​​of urea and 7.5-10 kg of phosphate fertilizer. The hole is applied at 5 cm from the root side of the soybean, and the soil is covered with fertilizer after application.
2, spraying foliar fertilizer
In addition to the three major elements of NPK, boron, zinc and molybdenum are indispensable trace elements in soybeans. Therefore, spraying multi-element complex nutrient solution during the flowering to the blast stage of soybean has the effect of increasing pod growth and increasing yield. The method is: adding 500 g of urea per 50 kg of water, 100 g of potassium dihydrogen phosphate, 50 g of zinc sulfate, 100 g of borax (dissolving it first with hot water) 25 g of ammonium molybdate, and fully stirring the solution. Spray evenly on the front and back of the soybean leaves, even spray 2-3 times, spray 75 kg of fertilizer solution per mu.
3, topping the heart of
Timely topping and topping can control the effect of lengthening and protecting flowers and pods. For soybean varieties with infinite pod habits, the topping of the top can be controlled, and the growth of the top can be controlled to reduce the loss of flower pods. The method is in the flowering period from the peak to the end of soybean. Choose the sunny day to remove the top growth point.
4, spraying Paclobutrazol
Spraying paclobutrazol can control plant height and shorten internode length, and the yield increase of infinite pod-type varieties is greater than that of limited pod-type varieties. Application method: 5 days before flowering of soybean, 7 days after flowering, 15% paclobutrazol wettable powder, 50-100 g, diluted with water 50-75 kg, sprayed evenly on the opposite side of the blade, not heavy spray, also Do not leak.
5. Spraying triiodobenzoic acid
This is a multi-efficient plant hormone that inhibits the growth of the apex and promotes axillary bud development. Plant dwarfing, increased branches, thick stems, is conducive to ventilation and light transmission and prevent lodging. Spray once in the initial flowering stage and the full flowering stage, and mature 5-7 days earlier. Spraying concentration: the initial flowering period is 100×10 minus 6 power. Before spraying, dissolve the pure product into alcohol at a ratio of 1:100. Dilute with water and spray evenly. 50 kg of the spray liquid per mu, early-maturing varieties and poorly grown soybeans should not be used.
6. Spraying Xiaozhuangsu Co.,
The plant can be made short, the lodging resistance is enhanced, the flower pods are reduced, and the quality is improved, and the yield can be increased by 10%. Application method: when the fourth leaf is grown, spray with 0.1% chlormequat solution once. At the beginning of flowering period, spray with 0.05% chlormequat solution once, spray evenly, spray 50 kg of liquid per acre.
7, spraying sodium hydrogen sulfite
Sodium sulfite is a light respiratory inhibitor, which can increase dry matter accumulation. It is sprayed once in the initial stage of soybean and full bloom. Each time, it is diluted with 10 kg of sodium bisulfite and 75 kg of water, and evenly sprayed. It is sprayed in the afternoon. .
8. Spraying Photosynthetic Micro Fertilizer
In the first flowering stage and the full flowering stage of soybean, spray one time each time, use 100 grams of photosynthetic micro-fertilizer per acre, and add 50 kg of water to dilute and spray evenly.
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