Soybeans are one of the crops that require more fertilizer. Fertilization plays an important role in the high quality and high yield of soybeans. Therefore, fertilizer should be comprehensively considered according to the characteristics of its varieties, soil fertility and cultivation measures. Under normal circumstances, for each 100 kg of soybean grain produced, it is necessary to absorb 7.0-9.5 kg of nitrogen, 1.3-1.9 kg of phosphorus, and 2.5-3.7 kg of potassium. Among them, nitrogen is the most demanded, followed by potassium, and sulphur, copper, molybdenum, boron, zinc, and other trace elements are also needed. Part of the nitrogen needed for soybeans comes from nodule-fixed nitrogen in the soybean itself, partly from soil and fertilizer. At the seedling stage, the absorbed nitrogen of soybean accounts for only 4% of the total amount. The absorption of nitrogen is increased during the flowering and seedling period, accounting for 19% of the total. The absorption of nitrogen is greater during the seedling and grain-bearing period, accounting for more About 70% of the total amount, absorption of nitrogen is basically stopped after the grain size period. Phosphorus absorbed from the emergence to the early flowering stage of soybean accounted for only 15% of the total, 60% of the flowering and podling stage, and 20% of the period from the scab to the grain stage. The absorption of potassium accounted for 32% of the lifetime absorption from emergence to anthesis. The absorption of potassium was higher than that of nitrogen and phosphorus during this period, and the flowering period accounted for 62% of the total potassium absorption during the grain stage. Only 6% of the period. In short, the period of pods is the period when soybean absorbs most nutrients of nitrogen, phosphorus, and potassium, and the rate of absorption is fast. If the supply of fertilizer is insufficient, soybeans are prone to defertilization. Fertilizer seed dressing. Rhizobium powder dressing: 20-30 g of rhizobia powder per 250 kg of seeds, 250 g of fresh water, mix the seeds and bacterium powder thoroughly in a pot, and soak after drying. Micro-fertilizer seed dressing: Before sowing, weigh 5-10 g of ammonium molybdate per 5 kg of seed, dissolve the ammonium molybdate completely with 250 g of warm water, and then spray the fertilizer solution on the seed so that the fertilizer solution is in full contact with the seed and dry. Dry after sowing. For the lack of boron or zinc deficiency, 0.05% borax solution or 0.1% zinc sulfate solution is used for seed dressing. Apply base fertilizer. Cultivated spring soybeans use basal fertilizer with organic fertilizer as a good per acre rot with high-quality farmyard fertilizer 2000-3000 kilograms, together with a small amount of chemical fertilizer can be. Due to the tight time of summer soybeans, the application of basal fertilizers can be mainly organic fertilizers or chemical fertilizers. For plots with low soil fertility, 6-7 kg of nitrogen should be applied per acre, 10-12 kg of phosphorus and potassium, and 4-5 kg ​​of phosphorous and potassium should be applied to plots with high fertility. Kilograms, plowing after spreading. Skillfully applying fertilizer. Soybean topdressing should be performed according to the location and seedlings. For plots that have not been treated with basal fertilizer or basal fertilizer, fertilizers should be promptly applied. Generally, 3-4 kg of urea or 10 to 15 kg of bicarbonate should be used per mu, and 20 kg of calcium superphosphate should be used. 10 kg. Nitrogen fertilizer can recover half of each seedling and early flowering period. Phosphorus and potassium fertilizers should be recovered early. The topdressing method should be applied as a trenching method. For the application of base fertilizer, the fertilizer should be top-dressed according to the growth conditions of each stage. The weak and yellow seedlings can be used to supplement nitrogen fertilizer to prevent premature aging of defertilizer. The flowering and poding period is the period when the soybean needs the most amount of fertilizer. A fast-acting fertilizer should be applied 5-7 days before flowering, and 2-5 kilograms of urea and 7-8 kilograms of potash should be applied per acre to guarantee the planting time. Growing needs for nutrients. Root fertilizer. Soybeans entering the calyx stage require the most time for various nutrients, and the plant roots begin to age after the buckling period, and the absorption capacity declines. Soybeans often cause premature decline due to lack of fertilizer. Soybean leaves have a strong ability to absorb nutrients. Foliar spraying can prolong the functional period of the leaves, and has a significant promoting effect on the grain density. Generally, it can increase production by 10%-20%. The method is: per acre available phosphoric acid two by 1 kg or urea 0.5-1 kg or 1.5-2 kg of superphosphate, or potassium dihydrogen phosphate 0.2-0.3 kg watered 50-60 kg, spraying on a sunny evening (including Calcium superphosphate should be pre-soaked for 24-28 hours before filtration and then sprayed. It is better to use the leaves on the back. From the beginning of the scab, spray every 7-10 days and spray 2-3 times.
Chondroitin
Sulfate is a kind of acid mucopolysaccharide extracted from healthy, edible and
homebred animal cartilage or shark
cartilage. It`s composed of Chondroitin Sulfate A, C and other various
Chondroitin Sulfate. China Shark Cartilage Chondroitin Sulfate is widely presented in fish, mammalian and bird
cartilage. Chondroitin Sulfate Sodium is the sodium salt of the sulfated linear
glycosaminoglycan. Shark Cartilage Chondroitin Sulfate SodiumShark Cartilage Chondroitin Sulfate Sodium is widely used as a material for food
ingredient, cosmetics, and medicine. Recently, the use of Chondroitin sulfate
for the symptomatic treatment of osteoarthritis has become very popular.
Our Shark Chondroitin Sulfate is derived from pure Shark Cartilage with
a content of 85%, 90% and 95%.
Shark Cartilage Chondroitin Sulfate Sodium Shark Cartilage Chondroitin Sulfate,Glucosamine Chondroitin,Shark Cartilage Chondroitin Sulfate Sodium,Chondroitin Sulfate Sodium Qufu Hi-Tech Trading Co., Ltd. , https://www.chinahyaluronic-acid.com
Only selects Shark Species which are not on the endangered list, therefore ensuring
sustainability of this potential life saving supplement. Shark Chondroitin Sulphates has more effect on human health than Bovine Chondroitin, that is the effect on Eczema and cancer. The 1992
publication of William Lane's book, Sharks Don't Get Cancer, sparked a heated
controversy between money-grubbing opportunists and medical orthodoxy. Although
sharks do, in fact, occasionally develop cancer, shark cartilage was promoted
as a natural "cancer cure" and all around wonder drug.
For some clinic experiments, Shark Chondroitin Sulfate also helps to cure
Eczema, but it's not scientifically proved. This is a strong natural material
to combat cancer.