Fertilizer refers to fertilizer that is applied at the same time as seeding or mixed with seeds. The effect of seed fertilizer on crop seeds is very large. If proper selection can ensure the smooth germination of crop seeds and the growth of seedlings, some fertilizers are not suitable for crop seed fertilizers. Fertilizers that are not suitable for crop seed fertilizers are:

Corrosive fertilizers Ammonium bicarbonate and ammonia are volatile and corrosive. They are easy to smear seeds and seedlings. Superphosphate contains free sulfuric acid and phosphoric acid, which can cause damage to seed germination and seedling growth. Generally, it is not suitable for seed fertilizer. Such fertilizers can be applied under the seeding ditch or separated from the seed by a certain soil layer, or mixed with superphosphate and soil fertilizer.

The toxic fertilizer urea often contains a small amount of biuret, which is toxic to seeds and seedlings. In addition, urea molecules with high nitrogen content penetrate into the protein molecules of the seeds, denature the proteins and affect seed germination.

Fertilizers containing harmful ions Potassium chloride, ammonium chloride and other chemical fertilizers contain chloride ions, which produce water-soluble chlorides when applied to the soil, which is detrimental to seed germination and seedling growth. The nitrate ions contained in fertilizers such as ammonium nitrate and potassium nitrate also have an effect on seed germination.

Strong alkaline fertilizers such as kiln ash potassium fertilizer and steel slag phosphate fertilizer are not suitable for seed fertilizer. The kiln ash potassium fertilizer has strong hygroscopicity, and releases a large amount of heat after absorbing water, which easily burns out seeds and radicles. When it is necessary to make a seed fertilizer, it must be mixed with organic fertilizer, applied to the seeding ditch, and then planted with soil.

Led Bulb

We supply various LED Bulb, Including Indoor Lightng A Bulb,T Shape Led Bulb,Emergency Rechargeable Led Light Bulb,Colorful Led Bulb,Led Corn Bulb Candle Light, Dc 12v Led Light Bulb etc.

You are suggested to consider the below things when buying LED bulb.

1. Equivalent Wattage

While lumens are the new standard, it helps to have an easily recognizable guide. Comparing an LED bulb to an incandescent will give you a rough estimate of just how well it will light a room. As a very ballpark figure for LED wattages, 1/4 or 1/5 the incandescent wattage value is usually close to what you need.

2.Lumens

Lumens directly measure just how much light the bulb gives out in total. On average, a 60-watt incandescent shines at 800 lumens, with roughly 50-100 lumens of difference above or below. The variance depends on manufacturer and age of the lamp. LEDs are directly rated for their max lumen rating and last much longer without dimming of the bulb.

3.Color Temperature

Your guide to how the light itself will look. Lower values are warmer, with 2700-3000K being a more incandescent "warm white" while higher temperatures like 5000K will deliver a very harsh "stark white" light. Our Lighting Guide lets you select a color temperature and see how it transforms a kitchen.

4.Driver Content

Because of their design, LEDs do not typically run on AC voltage. Many LEDs require some form of driver to convert the voltage from AC to DC for proper operation. The majority of socket-based LED lamps are self-driven, but you should always check before buying to make sure that you buy both an LED and a driver at the same time if it isn't self-driven.

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