The price of excessive fertilization is steep; if you don't understand the harm, you stand to lose big
Excessive application of chemical fertilizers is a widespread problem in agricultural production, and its adverse effects are becoming increasingly obvious. If it is not taken seriously and continues to develop, it will inevitably come at an even greater cost! So what exactly are the adverse consequences of excessive fertilization?
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The harms of excessive fertilization:
1. Reduced crop yield and quality
Excessive fertilization has two effects on the crops themselves. First, the crops become dependent on fertilizer, which in turn weakens their resistance to pests and diseases, so more chemical fertilizers and pesticides can only be used, creating a vicious cycle. Second, the crops are prone to lodging, which directly affects grain yield.
2. Aggravated damage to the soil environment
Excessive fertilization leads to soil compaction and leaves behind large amounts of poorly soluble and toxic substances, making the soil severely acidified or salinized, allowing pathogenic bacteria to spread unchecked, and seriously damaging the soil environment so that it is no longer suitable for crop growth.
3. Increased production costs
Excessive use of chemical fertilizers greatly increases farmers' production costs, forcing them to devote more manpower and material resources to production management, and with half the effort yielding double the result -- yields and quality cannot be significantly improved.
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Methods for the rational use of chemical fertilizers:
1. Choose a suitable formula and ratio
During fertilization, the formula and ratio should be chosen scientifically, and formula fertilization should be optimized at any time according to changes in production conditions.
2. Rationally increase the application of organic fertilizers
Well-rotted farmyard manure and finished organic fertilizers have comprehensive nutrients and lasting fertilizer effects. They can effectively increase the organic matter content in the soil, build up soil fertility, promote the reproduction and activity of soil microorganisms, improve fertilizer utilization, and are very beneficial for improving crop quality.
3. Attach importance to the application of microbial fertilizers
The beneficial bacteria in microbial bacterial fertilizer can, through their own physiological activities, inhibit or kill pathogenic bacteria in the soil, preventing soil-borne diseases from infecting crops at the root.
The functional bacteria in them can also break up compacted soil, degrade the harmful substances left by chemical fertilizers and pesticides, and activate the phosphorus, potassium nutrients and other trace elements fixed in the soil so that they can be absorbed and used by crops. While improving crop quality and resistance, this greatly reduces the amount of chemical fertilizer used.
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