Traditional Agriculture

The traditional agriculture is mainly based on the application of farm-made organic fertilizer, and later with the promotion of new agricultural technology, most farmers to farm manure and fertilizer use, especially in the rural areas of the main labor force transfer more Crop fertilization, more to fertilizer to become a home.

However, due to improper fertilization methods and the increasing number of fertilization, but also increasingly reveal some drawbacks, one is the excessive application of nitrogen fertilizer, so that the use of nitrogen is not converted into gaseous nitrogen, which nitric oxide to the atmosphere Ozone layer; the second is in the rain or irrigation, the soil of excess nitrate can cause groundwater or water pollution, resulting in crop damage or the fish in the pond suffocated; three long-term single application of nitrogen fertilizer, So that the soil residues in a large number of sulfate and carbonate ions, and calcium ions easily lead to soil compaction, the soil physical and chemical properties weakened; Fourth, partial nitrogen fertilizer, but also make crops nutrient growth, causing environmental shading, induced pests and diseases ; Five is a large number of fertilizer before the rain is easy to increase the concentration of soil fertilizer solution, so that the occurrence of acute reverse osmosis, leading to local or large crops wilting or death.

How to minimize the negative impact of fertilizer on the environment, to maximize the use of fertilizer it?

According to the target yield balanced fertilization in a certain fertilization level, the crop yield and fertilizer is positively related to increase the total amount of fertilizer or a single amount of fertilizer, due to the nutritional environment of the ecological balance, but will be reduced. Therefore, it can not be said that the higher the fertilizer application will be, the higher the yield will be. According to the determination, the production of 100 kg of rice, the need to absorb nitrogen from the soil 1.85 kg, 0.85 kg of phosphorus pentoxide, 2.1 kg of potassium oxide. Each production of 100 kg lint, need to absorb nitrogen 12 kg, phosphorus pentoxide 4 kg, 12 kg of potassium oxide. Only balanced fertilization, in order to prevent the phenomenon of fat between the grams. Of course, in determining the amount of fertilizer, but also consider the climate, soil, fertility and other comprehensive factors, as appropriate to grasp.

Deep fertilization, water fertilizer volatile pollution of air, and easy to lose water pollution. Production should adhere to the deep application of chemical fertilizers in order to cover soil with chemical fertilizers, reduce volatilization and loss and prevent the release of harmful crops. In the lack of moisture, the amount of irrigation should be transferred to the soil moisture, so that water to fertilizer. If the evaporation is too large, lack of moisture to easily lead to increased fertilizer concentration, resulting in fertilizer, fertilizer and fertilizer to give full play to fertilizer effect.

Mixing organic fertilizer organic fertilizer is slow to release, but the nutrient is relatively complete, the crop of its strong absorption capacity. After mixing the chemical fertilizer with the organic fertilizer, the available nutrients can be adsorbed or combined with the organic fertilizer, and then gradually released, both to extend the fertilizer time, but also reduce the unnecessary consumption of nutrients.

Improve the fertilizer preparation, regulation of fertilizer
First, a single species of fertilizer made of broad-spectrum compound fertilizer
the second is based on the characteristics of the fertilizer needed to produce special fertilizer;
Third, the use of modified means of quick release fertilizer made Slow release fertilizer
Fourth, the inorganic fertilizer and bio-organic compound fertilizer into the advantages of complementary grain fertilizer, early or delayed application of time, so that the crop fertilizer peak and fertilizer peak convergence, give full play to fertilizer.traditional agriculture

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