Fertilizer refers to the nutrients applied directly to seeds during planting or mixed with them. Proper use of fertilizers can supply crops with essential nutrients and reduce the need for additional topdressing. However, improper application can harm seeds and lead to poor crop performance. Therefore, when using seed fertilizer, it's important to follow these key guidelines.
Avoid using corrosive fertilizers. Ammonium bicarbonate and ammonia water are volatile and can damage seeds and young seedlings. Superphosphate contains free sulfuric and phosphoric acids, which may inhibit germination and seedling growth. It is generally not recommended as a seed fertilizer. If used, it should be placed below the seed furrow or separated from the seeds by a layer of soil, or mixed with organic fertilizer before application.
Do not choose toxic fertilizers. Urea often contains a small amount of biuret, which becomes harmful if its concentration exceeds 2%. This substance can damage seeds and affect germination. High-nitrogen urea can also interfere with proteins in the seed, leading to reduced viability.
Avoid fertilizers containing harmful ions. Fertilizers like potassium chloride and ammonium chloride contain chloride ions, which can be detrimental to seed germination. Similarly, nitrates found in fertilizers such as ammonium nitrate and potassium nitrate may have negative effects on seed development.
Do not use strong alkaline fertilizers. Materials like wood ash and slag phosphate are highly alkaline and can burn seeds and roots upon contact. Wood ash, for example, absorbs moisture and turns into lime, releasing heat that may damage the seed. If necessary, it should be mixed with organic matter and applied in the furrow, not directly with the seeds.
Avoid using uncomposted farmyard manure. Fresh manure can release excessive heat and ammonia during decomposition, which may burn roots and seedlings. Always ensure that organic fertilizers are fully composted and aged before using them as seed fertilizer.
In summary, choosing the right type of fertilizer and applying it correctly is crucial for healthy crop growth. Following these guidelines ensures that your seeds receive the nutrients they need without being harmed. Always take time to understand the properties of each fertilizer before use, and consider consulting local agricultural experts for tailored advice.
Abrasive Blade
1) Sharp cutting and processing;
(2) Diamond cutting pieces have high rigidity, high strength and long service life;
(3) The ultra-thin diamond cutting piece has high precision, which can be used for slotting machine cutting, and the incision is smooth without collapse;
(4) The continuous cutting of Valin diamond slices does not slip and does not appear the phenomenon of blade passivation;
(5) The diamond cutting slot is narrow, which can greatly improve the utilization rate of precious raw materials.
Application materials of ultra-thin diamond cutting pieces:
Grinding materials: refractory materials, ultra-fine whetstone, whetstone, whetstone cutting;
Ceramic materials: alumina, zirconia, silicon carbide, peng carbide, boron nitride, ceramic lining brick, piezoelectric ceramics, black ceramics, glass products;
Semiconductor materials: silicon carbide, silicon wafer, monocrystalline silicon, polysilicon, solar cell, circuit board (PCB);
Magnetic materials: magnetic core, magnetic sheet, magnetic ring, permanent magnet ferrite, rare earth Ndfeb;
Glass materials: all kinds of glass tube, glass spout, tea leakage, high borosilicate glass (e-cigarette tube), rice beads, capillary glass tube, optical glass, quartz glass, microcrystalline glass, sapphire, crystal, jade;
Brittle metal materials: YG series hard alloy, tungsten steel round rod;
Optical materials: LED, LCD, quartz photovoltaic, quartz crucible;
Alloy materials: high speed steel, die steel, alloy steel, stainless steel;
Other materials: carbon fiber material, valve rod, brake pad
Abrasive Blade,Angle Grinder Cutoff Disc,1 Inch Cut Off Wheel,Aluminum Oxide Thin Cutting Wheels
Henan Jinlun Superhard Material Co., Ltd , https://www.jinlunsuperhard.com