Chemical fertilizers, also known as inorganic fertilizers, are chemically synthesized fertilizers that have been crushed, selected, and processed by minerals containing fertilizer components. Some are by-products of industrial and mining enterprises, and have fertilizers of mineral salts and inorganic salts. They are all chemical fertilizers. This kind of fertilizer has a rapid effect and does not last long. If it is used for a long time, it will easily cause soil compaction.
Organic fertilizers used to be called farmyard manures. They are all natural fertilizers that are produced locally in the countryside. They are mostly animal and plant residues, human and animal waste, and domestic garbage. Because they are rich in organic matter, they are Known as organic fertilizer, this fertilizer must be decomposed before it can be used and the fertilizer is slow.
Microbial fertilizers are fertilizers made from artificially cultivated certain beneficial soil microorganisms, also known as bacterial fertilizers. Such as rhizobium agents, nitrogen-fixing bacteria, phosphorus bacteria, potassium bacteria, antibiotics and so on. These fertilizers do not contain nutrients themselves, nor can they replace chemical fertilizers and organic fertilizers, but they can increase the yield of crops through the metabolic activities of beneficial microbial growth and reproduction. Jinbao microbial fertilizer (bacterial fertilizer, microbial fertilizer, microbial fertilizer, microbial agent, compound microbial fertilizer, compound microbial fertilizer, biological fertilizer, bio-organic fertilizer are not strictly distinguished, all refer to the same meaning, can replace each other, the actual There is a difference, hereby explained) is a kind of microbial preparation containing vitality, which can make crops obtain specific fertilizer effect, have nitrogen fixation, phosphorus and potassium dissolving functions, promote the absorption and utilization of nutrients in crops, improve fertilizer utilization and reduce The amount of chemical fertilizer can effectively restore soil fertility, reduce soil compaction, improve soil fertility, enhance crop stress resistance, increase crop yield, and improve crop quality. Jinbao microbial bacteria fertilizer quality is hard, the brand is ringing, both internal and external double-pure, pure microbial preparations, after the application of this product can quickly alleviate the slow growth, yellow leaves and other physiological symptoms, is the first batch of registration products of the Ministry of Agriculture. Excellent cost performance, stable quality, and significantly better than the same type. Applicable to a variety of seedlings, flowers, rice, corn, beans, tobacco, melons, peanuts and other crops.
The commonly used Pipette kits are mainly composed of a pipette and a pipette tip. The pipette tip is a single empty
Cavity reservoir; the pipette uses the principle of air displacement and controls the maximum displacement of the piston by rotating a screw with an ultra-fine thread
displacement, and then control the amount of liquid suction. There are the following problems when using the above kit for suction: 1. The suction volume is controlled by the pipette
After the pipette is sterilized or used for a period of time, it is easy to cause "hidden" failures, which cause the operator to be difficult to detect.
The actual suction volume is inaccurate, and it needs to be adjusted frequently, and the operation is cumbersome and time-consuming; 2. To improve the pipetting accuracy, the operator's
The operation requirements are high, and it is easily affected by factors such as the suction speed, the depth of the tip below the liquid level, and the inclination angle of the pipette.
The actual suction volume will be heard; 3. The actual suction volume will be affected because the suction head cover is not tight and leaking, and it will not be easily detected; 4.
When performing experiments that require high accuracy, such as analysis, in the operation of equal volume aspiration of liquids with different densities, the actual
The actual suction volume will be affected by the density itself; 5. In order to improve the accuracy, this type of pipette needs to carry out high
Cost-optimized design results in extremely high pipette costs.
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