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What types of calcium fertilizer are there? These soils and crops are prone to calcium deficiency
The calcium fertilizers commonly used in production at present include quicklime, containing 94%-96% calcium (CaO); hydrated lime, formed by quicklime absorbing water, containing 64%-7526 calcium; carbonate lime, made by grinding limestone and marl, whose main component is calcium carbonate; and gypsum, whose main component is calcium sulfate.
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Why does over-applying nitrogen fertilizer reduce crop yields, and how much nitrogen is actually needed?
Nitrogen is one of the essential nutrient elements for crops, and supplying nitrogen fertilizer in appropriate amounts can increase crop yields and improve quality. But if nitrogen fertilizer is over-applied, crops will instead reduce yields. What is the reason for this? How much nitrogen do crops actually need? Over-applying nitrogen fertilizer causes the carbohydrates produced by crop photosynthesis
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Why is bone meal a high-quality phosphorus fertilizer? Apply it this way for good results
Why do we say bone meal is a good phosphorus fertilizer? How should it be used for good results? Bone meal is made by processing and grinding animal bones, and its main component is tricalcium phosphate, accounting for about 58%-62% of bone meal. In addition, it also contains 4%-5% nitrogen and fats. To improve the application
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Can crop roots absorb fertilizer? Methods to improve fertilizer uptake efficiency
Crops absorb fertilizer nutrients through their roots mainly relying on their extensive root system. For example, the root system of a mature rice plant has 200-300 roots, with some having 600-700, and each root has many branch roots, with root hairs at the tips of the branch roots, which serve to expand the root system's absorption area for water and
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Proper fertilizer storage matters: fertilizer and pesticides should not be kept in living rooms
After the responsibility system was implemented in rural areas, chemical fertilizers stored in farmers' homes often absorb moisture and cake together because of improper storage, and can even prevent seeds from germinating normally. So how should fertilizer be stored properly? Why should chemical fertilizers and pesticides not be kept in living rooms? When storing chemical fertilizers properly, you should
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Improving the Effect of Phosphorus Application on Newly Reclaimed Red Soil Fields and the Feasibility of High-Rate Phosphorus Application on Phosphorus-Deficient Soils
Newly reclaimed red soil fields have a low total phosphorus content (generally below 0.4 g/kg) and high iron and aluminum contents. The phosphorus in the soil exists mainly as iron and aluminum phosphate compounds, which are not easily absorbed and utilized by crops. Therefore, when planting crops and economic forest trees in newly reclaimed red soil fields, emphasis should be placed on increasing phosphorus application.
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Wood ash is a high-quality potassium fertilizer; pay attention to these issues when collecting and applying it
Wood ash is the residue left after burning plant materials such as crop straw and dead branches and fallen leaves. According to rough estimates, the ash from burning plants in China each year exceeds 20 million tons. If calculated at an average of 5% potassium oxide, this is about 1 million tons, equivalent to 2 million tons of potassium sulfate, which
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What Is Fertilizer Use Efficiency? A Detailed Explanation of the Typical Use Efficiency of Different Types of Fertilizer
Fertilizer use efficiency refers to the percentage of a given nutrient absorbed by the crop in the current season out of the total amount of that nutrient in the applied fertilizer. Under current cultivation management levels, the range of variation in crop use efficiency of chemical fertilizers is: 30%-60% for nitrogen fertilizer, 10%-25% for phosphate fertilizer,
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What Is a Compound Fertilizer? Advantages and Precautions of Mixed Application
What is a compound fertilizer? What are the advantages of mixed application? What precautions should be taken? Compound fertilizer refers to a chemical fertilizer that simultaneously contains the three elements nitrogen, phosphorus and potassium, or contains only any two of these elements. For example, a compound fertilizer containing any two of the three elements is called a binary
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How to quickly identify counterfeit and shoddy fertilizers?
In rural areas, a few unscrupulous dealers go from village to village and door to door, using prizes as a cover to deceive farming households with counterfeit and shoddy fertilizers, affecting farmers' harvest for a whole season. In order to protect our own lawful rights and interests, today we will explain how to quickly identify counterfeit and shoddy fertilizers.
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