Changing the type of fertilization can sometimes play a very good role, but it is not too blind to replace the fertilization. It is even more undesirable to change one at a time. At present, there are many kinds of rushing fertilizers on the market, and there are many brands, so it is inevitable that there will be mixed fish and dragons. Many fake and shoddy fertilizations in order to quickly show the effect, excessive addition of plant growth regulators. This kind of application of the applied fertilizer is really fast, and it will take effect in 2 to 3 days. After 6 to 7 days, the vegetables will have yellow leaves and wilting symptoms.
Without understanding the characteristics of fertilizers, frequent replacement, blind application, there is a great risk. In the current situation that the agricultural capital market is full of counterfeit and shoddy fertilizers, the inadvertent, lighter vegetables lead to poor growth of vegetables, low yield, poor efficiency, and severe cases can lead to the end of production.
Different varieties of vegetables, although the characteristics of fertilizer demand in different periods and different environments are different, but for the fertilization, the focus is on the flowering result period, and the proportion of fertilizer needed is basically stable. It is recommended that the vegetable farmers can sort out the commonly used fertilizers and select a few suitable fertilization formulas. If you find a fertilizer with reasonable nutrient content, stable quality and good effect, you can use it continuously. This will not only better understand the effect of fertilization, but also reduce the risk of production and operation.
Screws are threaded fasteners that create permanent or temporary assemblies. They are inserted and removed by turning in one direction or another. Wood screws, floor screws, and sheet metal screws have flat heads that sit flush when holding material together. Machine screws fasten metal to metal and are inserted into a prethreaded hole or mated with a nut. Thread-cutting screws are self-tapping screws that cut away and remove the surrounding material to create a tapped hole. Deck screws resist rust and corrosion to hold outdoor decking materials together. Drywall screws have fine tips, coarse threads, and tapered bugle heads to penetrate drywall and grip wood without damaging material. Hex-head bolts, cap screws, and lag screws are driven with wrenches rather than screwdrivers or drill bits. Captive panel screws and thumb screws can be tightened and loosened without tools on parts that are frequently removed such as access panels. Screw caps can help to cover screw heads for both safety and aesthetic purp
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