Fertilizer, when applied directly to seeds during planting or mixed with them, is known as seed fertilizer. Proper use of seed fertilizer can supply essential nutrients to crops and reduce the need for additional topdressing. However, improper application can harm the seeds, delay germination, and even cause crop loss. Therefore, it's crucial to follow certain guidelines when applying seed fertilizer.
First, avoid using fertilizers that are corrosive. For example, ammonium bicarbonate and ammonia water are volatile and can damage seeds and young seedlings. Similarly, superphosphate contains free sulfuric acid, which may hinder seed germination and early growth. These types of fertilizers should not be used directly on seeds but instead placed in the furrow or mixed with soil to prevent direct contact.
Second, avoid toxic fertilizers. Urea, for instance, can produce a substance called biuret, which becomes harmful if its concentration exceeds 2%. This can negatively affect seed viability and germination. High nitrogen content in urea can also interfere with the proteins in the seed, further reducing its ability to sprout.
Third, avoid fertilizers containing harmful ions. Fertilizers like potassium chloride and ammonium chloride contain chloride ions, which can be detrimental to seed germination. Similarly, nitrate ions found in ammonium nitrate and potassium nitrate can also have adverse effects on seed development.
Fourth, avoid strong alkaline fertilizers such as wood ash and slag phosphate. These materials can release a lot of heat when they come into contact with moisture, potentially burning the seeds or roots. If they must be used, they should be thoroughly mixed with organic matter and placed in the furrow before planting.
Lastly, avoid using raw farmyard manure as seed fertilizer. Uncomposted manure can generate excessive heat during decomposition, which can scorch roots and release ammonia that harms young plants. It's best to use fully decomposed, well-rotted manure as a safe and effective seed fertilizer.
By following these guidelines, farmers can ensure that seed fertilizers enhance crop growth without causing harm. Always take the time to understand the properties of the fertilizers you use and apply them correctly for the best results.
Polishing Wheels
Polishing wheels are widly sued on steels
,titanium, copper, brass, aluminum, and also all types of non-ferrous
materials, such as gems, stones, glass, plastic, acrylic, ceramics, carbon
fiber. Polishing wheels can be all types Grinding Wheels which have more fine
grits to achieve the aim of low value of Ra.
Polishing wheels can be diamond grinding
wheels, or conventional abrasive grinding wheels, like PVA grinding wheels, silicon
carbide grinding wheels, polishing wheels, rubber grinding wheels. Polishing
wheels can also be made to polishing Mounted Point with shanks.
Kemei produce and aim on different types of
grinding tools, such as aluminum oxide grinding wheel, silicon carbide grinding
wheels, mounted points, Diamond Grinding Wheels, CBN Grinding Wheels and wheel
dressers.
If you need any type of grinding tool or
professional advice about grinding on your workpieces. Don`t hesitate to
contact us!
Polishing Wheels,Rubber Polishing Wheel,Mirror Polishing Wheel,Buffing Wheel Dressing Tool
Henan Jinlun Superhard Material Co., Ltd , https://www.jinlunsuperhard.com