The wrong fertilization brings 7 major consequences!
1. There are many causes of soil compaction, but mainly long-term overuse of phosphate fertilizer
The greater the amount of phosphate fertilizer, the more surplus, the more serious soil consolidation. The direct damage caused by soil compaction is poor soil permeability, underdeveloped crop root systems, malnutrition, physiological barriers, and soil-borne diseases such as rot and dead trees.
No matter which kind of phosphorus contained in phosphate fertilizer, when it meets the soluble calcium, iron, zinc, manganese and aluminum in the soil, it will bind tightly together to form a hard-to-decompose cured material, destroying the soil aggregate structure, causing In soil compaction, calcium, iron, zinc, manganese, and phosphate fertilizers are simultaneously inactivated and ineffective. This is the root cause of the low phosphorus utilization rate of only 5%-20%. It is also the reason that the greater the amount of phosphate fertilizer, the lack of trace elements in crops.
Crops do not use phosphate fertilizers, but the biggest problem at present is the blind application of phosphate fertilizers, resulting in serious over-production of phosphate fertilizers, aggravating soil compaction and causing premature crop failure. Why chicken manure, a large amount of organic fertilizer, can not only not improve the soil, but also aggravate the soil compaction, resulting in serious imbalance of water, fertilizer, gas, and heat. The disease is difficult to control?
When everyone knows that chicken manure is the highest phosphorus organic fertilizer in animal waste, the answer comes out.
2. Methods to eliminate soil compaction
To prevent and eliminate soil compaction, the first is to activate phosphorus and promote the soil to form a granular structure. There are two commonly used methods: First, increase the application of organic fertilizer, especially crop straw and high fiber content of cattle, horses, sheep manure and so on. Straw manure and these animal manures contain a large amount of humic acid and fulvic acid, which are the best choice for activating phosphorus and improving soil. The second method is the application of biological fertilizers, the application of biological fertilizers is more complex, and it should not be mixed with pesticides and fertilizers. In addition, the soil with low organic matter content has no obvious effect due to insufficient carbon resources.
3. Soil acidification
The soils south of the Yangtze River in China are mostly acidic, and the soils north of the Yangtze River are mostly neutral alkalis. The acidification of large areas of the soil in the south is caused by abundant rainwater carrying large amounts of carbon dioxide and leaching soil calcium and magnesium ions.
The soil acidification mentioned here is anthropogenic acidification. Although it is related to the application of organic fertilizers and physiological acidic fertilizers, the main reason is excessive application of nitrogen fertilizers (including organic nitrogen fertilizers).
A large amount of nitrogen fertilizer will be oxidized to nitric acid, destroying the calcium and magnesium salt base of the soil and acidifying the soil. The most direct hazard of soil acidification is the lack of serious physiological diseases of calcium, magnesium, and boron. Soil acidification will also limit the survival of nitrogen-fixing bacteria, affect the growth of legumes, and at the same time, it will increase the incidence and development of cabbage wilt disease, tomato, pepper, eggplant, peanut and other crop bacterial wilt.
4. Methods for regulating soil acidification
Normal crops grow well in neutral soils with pH=6-7.5, and acid soils with pH less than 6 are unfavorable for most crops. The conventional method is to apply 100 kg of quicklime to neutralize and adjust the soil. During the operation, two-thirds of the land shall be ploughed on the surface, and the rest of the cultivated land shall be scattered on the ground and then poured into the water.
5. Soil salinization
Although soil salinization does not rule out natural causes, it is mainly due to excessive application of fertilizer. One-time application of excessive fertilizer or large-scale long-term use of chemical fertilizers. In fact, most of the fertilizers have not been used, and some have been lost with the irrigation water. The rest remains in the soil and accumulates as salt. All of the fertilizers we apply to crops are almost converted to salts (fertilizers except urea are all salts that do not need to be converted) before they can be used by crops. Fertilizers that exceed the requirements of crops, and very few of them enter groundwater Or it is decomposed into the air, and most of it remains in the form of salt in the soil.
The greater the amount of fertilizer, the faster the soil becomes salinized. When the salt in the soil exceeds the tolerance of the crop, it will affect the growth of the crop, and even cause dehydration and death. Salt damage is actually a health hazard.
6. Measures to avoid soil salinization
The direct damage of soil salinization to crops is the underdevelopment of roots, leaf rigidity, black and black, plant not dwarf trees, growth potential even stopped, no new leaves or new leaves, or uneven growth. To avoid soil salinization, the best way to prevent crops from dying is to set the output according to the conditions of the land (fertilizer, lean, water conservancy conditions, flatness, etc.), determine the application amount of nitrogen fertilizer by production, and measure the amount of phosphorus and potassium fertilizer in soil nutrients. Do organic fertilizer and chemical fertilizers are used in combination, and all phosphorus fertilizers are applied at the end of the year. Most of the potassium fertilizers are applied at the bottom, while the top ones are topdressed, and the nitrogen fertilizers are mainly topdressing.
7. Soil nutrient imbalance
The so-called maladjustment is the improper allocation of nutrients in crops. Some of them are accumulated in large quantities, some are severely deficient, and crop physiology disorders and infectious diseases occur in large numbers. They seriously affect the yield and quality of crops, resulting in high input, low yield, and poor efficiency. The phenomenon.
Lactobacillus Acidophilus,Lactobacillus Acidophilus Powder,Lactobacillus Acidophilus Probiotic,Lactobacillus Acidophilus Supplements
Jiangsu Biodep Biotechnology Co. ,Ltd. , https://www.mbioda.com