Among the fertilizer nutrients, broccoli requires nitrogen and phosphorus in the whole growth period, especially in the bulbous expansion stage, and potassium fertilizer after flower bud differentiation. Among the trace elements, boron and molybdenum are most needed. The production of 1000 kg of green cauliflower requires 2.5 kg of pure nitrogen, 1.1 kg of phosphorus pentoxide, and 2.9 kg of potassium oxide. Before planting, 2500 kg of organic fertilizer was applied per mu, 100 kg of biological organic compound fertilizer, 50 kg of urea, 20-25 kg of superphosphate and 30 kg of potassium sulfate. Into the rosette period, the first time dressing, 4 kg of pure nitrogen per acre, potassium oxide 6 kg. The second time in the rosette was topdressing, 2.5 kg of pure nitrogen and 4 kg of potassium oxide were applied per 6 mu. In the initial stage of flower bulb formation, 0.2-0.5% borax can be sprayed out of the root.
Cherry tomatoes in addition to nitrogen, phosphorus, potassium fertilizer, pay attention to increase calcium, boron fertilizer. The production of 1,000 kilograms of cherry tomatoes requires 3.85 kilograms of pure nitrogen, 1.15 kilograms of phosphorus pentoxide, and 4.44 kilograms of potassium oxide. Before planting, 5000 kg of organic fertilizer was applied per mu, 200 kg of biological organic fertilizer, 50 kg of urea, 30-50 kg of superphosphate, 40 kg of potassium sulfate, 100 kg of calcium fertilizer, and 1.5 kg of borax. Generally, when the first fruit begins to swell, the first topdressing can be performed with 5 kg of pure nitrogen per acre and 6 kg of potassium oxide. The second time the top dressing is harvested in the first fruit, when the second fruit is enlarged, 5 kg of pure nitrogen per acre and 6-7 kg of potassium oxide are applied. The third dressing is harvested in the second ear, and when the third ear is swollen, 4 kg of pure nitrogen per acre and 5-6 kg of potassium oxide are applied.
Prickly-pinlet pepper growth requires adequate nutrient conditions, production of 1,000 kilograms of colorful pepper requires 4.2 kg of pure nitrogen, phosphorus pentoxide 1.1 kg, potassium oxide 6.5 kg, but also need the right amount of calcium fertilizer. Before planting, 4500 kg organic fertilizer per mu, 150 kg bio-organic compound fertilizer, 50 kg urea, 25 kg superphosphate, 50 kg potassium sulfate and 100 kg calcium fertilizer. When the seedlings are over and the first ear grows to the size of the walnut, the first topdressing is carried out, applying 5 kg of pure nitrogen per mu and 6 kg of potassium oxide. When the first fruit is about to be harvested, the second layer of fruit and the third layer of fruit continue to expand, and the third layer of fruit is falling and setting fruit, it is the peak period of fertilizer requirement. The second fertilizer should be reapplied, and pure nitrogen is applied per acre. 6 kg, 7-8 kg of potassium oxide. The third topdressing was performed about two weeks later and the amount of fertilizer was the same as the second. After 15 to 20 days, the fourth topdressing was performed with the same amount of fertilizer applied for the first time.
The thorny cucumber without thorn cucumber is hi-favored, while the organic fertilizer is applied at the same time, and the nitrogen, phosphorus and potassium fertilizers are applied in combination. Increasing molybdenum fertilizer can increase vitamin content in fruits and reduce nitrate and nitrite content. The production of 1000 kg of barbed cucumber requires 2.6 kg of pure nitrogen, 1.4 kg of phosphorus pentoxide, and 3.5 kg of potassium oxide, of which the required amount of fertilizer accounts for more than 80% of the total fertilizer requirement. Before planting, 5000 kg of organic fertilizer was applied per mu, 250 kg of bioorganic compound fertilizer, 60 kg of urea, 30-40 kg of superphosphate, and 50 kg of potassium sulfate. In the early stage of fruiting, the first time dressing was applied. Pure nitrogen was applied in 3 to 4 kg per mu, and potassium oxide was 4 to 6 kg. In the early stage of the harvest, the first time, the topdressing melon was applied with 3 to 4 kg of pure nitrogen per acre and 5 to 6 kg of potassium oxide. In the middle of the melon period, the 3rd topdressing fertilizer is applied, each of which contains 3 to 4 kg of pure nitrogen and 5 to 6 kg of potassium oxide. Spray 0.02-0.05% ammonium molybdate at full fruit stage.
The nitrogen fertilizer is applied to the seedling stage in the Netherlands, and the phosphorus and potassium fertilizers are applied during the growth period. The molybdenum and manganese fertilizers should be added. The production of 1,000 kg of Dutch beans requires 2.4 kg of pure nitrogen, 0.8 kg of phosphorus pentoxide and 5.7 kg of potassium oxide. Before planting, 2500 kg of organic fertilizer was applied per mu, 100 kg of bio-organic compound fertilizer, 20 kg of urea, 25-30 kg of superphosphate, 40 kg of potassium sulfate, and 0.5-1 kg of manganese sulfate. Into the extension of the cranberry period, the first time dressing, applied 3 kg of pure nitrogen per acre, potassium oxide 4 ~ 6 kg. During the flowering and poding period, the second top dressing was applied, and 2~2.5 kg of pure nitrogen and 3.5 kg of potassium oxide were applied per acre. Spraying 0.02-0.05% ammonium molybdate during flowering.
In addition to nitrogen, phosphorus and potassium in American celery, celery needs more boron. Applying zinc fertilizer can reduce nitrate and nitrite content in fresh vegetables. The production of 1,000 kg of celery requires 2.0 kg of pure nitrogen, 0.93 kg of phosphorus pentoxide and 3.9 kg of potassium oxide. Before planting, 4000-5000 kg of organic fertilizer is applied per mu, 150 kg of bio-organic compound fertilizer, 40 kg of urea, 25-35 kg of superphosphate, 40 kg of potassium sulfate, and 1-1.5 kg of zinc sulfate. The plants entered a vigorous growth period and carried out the first topdressing, applying 3 kg of pure nitrogen per mu and 5 to 6 kg of potassium oxide. After two months into the second topdressing, pure nitrogen 2 ~ 2.5 kg per acre, potassium oxide 4 ~ 5 kg. Strong growth period can be sprayed 0.2~0.5% borax.
Unimedsume Trading Co., Ltd , https://www.ums-labmed.com
没有评论:
发表评论