Farming and Fertilizer Selection

How to buy fertilizer for one year depends on the spring, and on the golden season of spring farming, the production and sales of fertilizers also enter the peak season. There are many varieties of fertilizer on the market. How can we purchase fertilizers of high quality and suitable for use? This requires mastering some basic knowledge of fertilizers and precautions for purchase.

The largest amount of plant needs is nitrogen, phosphorus and potassium. Nitrogen is the main nutrient element of crops. It is one of the constituents of proteins, nucleic acids, and enzymes. It participates in the metabolism of plants, and its content directly affects the growth, development, yield, and quality of crops. Phosphorus is an essential element for composing nucleic acids and various phosphate esters. Phosphorus plays a physiological regulating role in plants. The lack of phosphorus in crops often presents various symptoms such as smaller leaf shape, darker color, and thicker leaves. Potassium is an indispensable nutrient element for the growth and development of crops. It can promote a variety of metabolic reactions of crops and participate in various metabolic activities. Therefore, potassium deficiency will affect the growth and development of plants, thus affecting the yield and quality of crops. According to whether the fertilizer contains three effective elements of nitrogen, phosphorus, and potassium, the fertilizer can be roughly divided into one-element fertilizer, binary fertilizer, and three-element fertilizer.

One-element fertilizer is a single-element fertilizer containing only one active ingredient, and binary fertilizer is a fertilizer containing two active ingredients, and so on. In addition to nitrogen, phosphorus, potassium in addition to other trace elements in the fertilizer called multi-element fertilizer. Trace elements have a certain effect on the growth of crops, but they do not play a decisive role. The price of fertilizers is determined by the content of three active ingredients: nitrogen, phosphorus and potassium. Trace elements also have no decisive effect on the price of fertilizers. At present, most of the trace elements in the multi-element fertilizer packaging label on the market have not been added or added in a very small amount. This will not achieve a real effect. It is only a promotional tool and should not be taken. When purchasing chemical fertilizers, pay attention to the following points: First, look at product identification. Each fertilizer bag should be marked with the product name, brand name, active ingredient content, net weight, standard number, production license number, manufacturer name, and site.

No factory name, active ingredient, or product that implements the standard number can be purchased. Consumers must not be greedy and lose money. Second, look at the test report. Whether it is imported fertilizer or domestic fertilizer should check the inspection report of fertilizer. The inspection report is preferably issued by the local quality and technical supervision department. The general inspection report includes the contents of nitrogen, phosphorus and potassium, total nutrient content, and grain size and moisture content of the chemical fertilizer.