How to Discern Organic Fertilizer Simply and Quickly

Organic fertilizer on the market is varied, mixed with fish and dragon, and the price is different, which brings great trouble to the choice of growers. So how to choose a good organic fertilizer, how to distinguish the advantages and disadvantages of organic fertilizer? Below is a combination of several common organic fertilizers on the market to understand.

For example, slag organic fertilizer should not be wet or dry, with less impurities and residues. You can hold a handful of fertilizer and pinch it in your hand directly. You can feel some moisture in your hand. Then you can release it. The fertilizer can be dispersed by itself or by gentle touch. So the fertilizer in this state is better, and it can also be combined with water-soluble. Judgment by experiment. POWDER ORGANIC FERTILIZER: This kind of organic fertilizer has a relatively small moisture content. It can be directly put into a glass of water to observe its state. If it is suspended in water, it means that the content of organic matter is higher. If it is put into the water, there will be a lot of sunken substances, indicating that there are more non-organic substances. Granular organic fertilizer: This kind of fertilizer mainly depends on its solubility. Similarly, it is put into a glass filled with water. After stirring, the lighter the color of the water solution, the worse the fertilizer efficiency (light yellow fertilizer efficiency is low; Brown fertilizer efficiency is good). It turns brown completely within an hour, which indicates that the organic fertilizer is too mature, the fertilizer efficiency is quick and no aftereffect. In the middle and later stages of crop growth, the water solution may not change much after one day, and the color is still light. This shows that the organic fertilizer efficiency is poor. After one day, the water solution gradually deepens and completely turns brown, indicating that the organic fertilizer has a good slow-acting and full-acting fertilizer effect. At the same time, the advantages and disadvantages of organic fertilizer can be judged by other intuitive ways: Smell If organic fertilizer can smell the taste of chemical fertilizer, this organic fertilizer is not very good. Some manufacturers add ammonium carbonate or urea to the organic fertilizer in order to see its effect in a short time. It smells like ammonia. Such fertilizers can easily cause burning of roots, making the autumn shoot look very strong, but in fact it has no value. If you can smell chicken manure, pig manure and other fecal raw materials, this organic fertilizer is not good. This kind of organic fertilizer which can smell the taste of raw materials is not completely decomposed. When it is used in the field, the raw materials will be fermented twice to produce a lot of heat, which will have a serious impact on the root system of plants. It is very likely to cause burning roots, leading to the decline of tree vigor year by year. Good organic fertilizer should be a completely decomposed mushroom scent. Look at the color Good organic fertilizer is mostly brown or black-brown, gray-white is over-ripening, this can be noted. Verification number Ordinary manufacturer manufactured organic fertilizer, packaging will have the registration certificate number of the Ministry of Agriculture, can be inquired on the relevant official website of the Ministry of Agriculture, of course, there are also individual provinces can not find, such as "Guinongfei *** quasi word *** number of Guangxi, agricultural fertilizer before the abbreviation of Guangxi, these can be inquired online in the Guangxi Agricultural Department of the relevant"Agricultural Department" The announcement on approval of issuing fertilizer registration certificate "is inquired. Packing in foreign languages should not be purchased as far as possible, because organic fertilizers are all wastes for reuse, and it is almost impossible to import them from abroad.