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Second, in principle, it is not recommended to use ternary compound fertilizer as top dressing, but emphasize the use of simple nitrogen fertilizer as top dressing. This adjusts the ratio of nitrogen, phosphorus and potassium nutrients. The reason for not advocating the use of ternary compound fertilizer for top dressing is to avoid the waste of phosphorus and potassium resources, because it is difficult to exert phosphorus and potassium fertilizer on the soil surface, and the utilization rate in the season is not high. If no compound fertilizer is applied to the base fertilizer, it can be properly applied after emergence, but it is best to apply the ditch and cover the soil after application.
If the manufacturer proposes to use ternary compound fertilizer to make vegetables, it is misleading to farmers! Cucumbers, green peppers, tomatoes and other vegetables are harvested many times. Appropriate nutrients should be added after each harvest, and this can be done by applying fertilization. However, the soil available phosphorus content in the general vegetable greenhouse is extremely high, and it is not necessary to use the ternary compound fertilizer for the fertilization. Of course, the compound fertilizer used for flushing fertilizer should be a compound fertilizer with high nitrogen and potassium content and full water solubility.
Third, in principle, it is not possible to use high-concentration compound fertilizers for seed fertilizers. Because the high concentration of fertilizer mixed with the seeds is easy to burn. If you must make a fertilizer, you must separate the seeds from the fertilizer. Farmers in some places in the Northeast have used compound fertilizers with a total nutrient content of 30% in the same ditch. The results have an impact on the emergence of maize. This lesson should be learned.
There are three issues to be aware of when applying compound fertilizer:
First, although the compound fertilizer is a good fertilizer, the application amount should not be too large. According to a farmer in Hubei Province, the application of 12-6-7 compound fertilizer per mu is as high as 400-500 kg. As a result, the cabbage is not ideal. It is recommended that farmers should consciously get rid of the misunderstanding that “the more fertilizer is applied, the more the production will increaseâ€.
Second, choose the right compound fertilizer based on the crop type. Some farmers, regardless of whether they grow cabbage or radish, use 12-6-7 compound fertilizer. Because leafy vegetables are good for nitrogen and root vegetables are like potassium, you should choose different compound fertilizers. The fertilizer is highly targeted and the effect is natural.
Third, calculate the amount of compound fertilizer. To use PK nutrients, the insufficient nitrogen can be adjusted with topdressing nitrogen fertilizer, so that balanced fertilization can be achieved.
Expert tips:
1. The compound fertilizer is best used as a base fertilizer to meet the large demand for phosphorus and potassium in the middle and late crops. 2. In principle, compound fertilizer can't be used as seed fertilizer. If it is necessary to make seed fertilizer, it must be done “fertilizer and seed separation†to avoid burning seedlings. 3. In principle, compound fertilizers are not recommended for topdressing because the phosphorus and potassium resources are wasted in the current season.
The blocks are easy to store and carry cause it is packed with a PVC bag with zipper. Also after a long time of playing, the blocks can be cleaned easily with water thanks to its closed cell foam.
Application technology of compound fertilizer
First, it should be used as a base fertilizer. The reason is: 1 can be applied deep in the base fertilizer, which is conducive to the absorption of nutrients by crop roots in the middle and late stages. 2 Compound fertilizers are ternary compound fertilizers containing NPK. The base fertilizer can meet the maximum demand for phosphorus and potassium nutrients in the middle and late crops. 3 The application of base fertilizer can overcome the difficulty of applying phosphorus and potassium fertilizer in the middle and late stages.
The twin colors Eva Educational Blocks look beautiful and interesting than the single color blocks, it can be more creative when baby is building different objects with the blocks. And due to it is made from foam material, the EVA Building Blocks are lighter than plastic or wooded blocks, avoid baby from hurt of heavy thing even just a small plastic or wooden block.
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