Preparing spring planting According to the characteristics of the fertilizer absorption of crops, selecting suitable fertilizer varieties can not only fully exert the fertilizer efficiency, but also reduce the production cost and obtain high yield.
Different crops respond to nitrogen Nitrogen, nitrogen (ammonium bicarbonate, ammonium sulfate, ammonium chloride, urea) or nitrate nitrogen fertilizer (such as ammonium nitrate) is applied to different corn, wheat, and other cereal crops. Potato and sweet potato should use ammonium nitrogen fertilizer. In addition, different crops have different requirements for nitrogen. Leafy vegetables need more nitrogen fertilizer for the crops whose leaves are harvested, while legumes only need to apply a small amount of nitrogen fertilizer when the root nodule has not functioned at the early stage of growth.
Different crops respond to phosphorus. Different leguminous crops (soybeans, peanuts), fiber crops, potato crops (potatoes, sweet potatoes), and melons require more phosphorus. Phosphorus fertilizers have better effects. Pu-calcium and heavy calcium are water-soluble phosphate fertilizers, which are easily absorbed and utilized by crops.
Different crops respond to potassium Different crops with high carbohydrate content (potatoes, sweet potatoes, watermelons, etc.) require larger amounts of potassium, which is a high-potassium crop. These potassium-promoting crops are bogey of nitrogen, and the use of potassium chloride will result in a decline in yield and quality. Potassium sulphate is suitable for all kinds of soil crops. It can be used as base fertilizer, seed fertilizer, topdressing fertilizer and top dressing fertilizer. Potassium chloride is not suitable for seed fertilizer.
Different crops respond to sulfur, sodium, and chlorine. Potatoes, soybeans, peanuts, and rapeseed are sulfur-loving crops, and calcium sulfate is better than heavy calcium. The sugar beet is like sodium, and sodium nitrate is a good fertilizer for sugar beet. Chlorine can increase the fiber's toughness and pull force. Ammonium chloride is suitable for cotton, hemp and other crops.
Food additives are substances added to food. Some additives have been used for centuries. With the advent of processed foods in the second half of the twentieth century, many more additives have been introduced, of both natural and artificial origin.
The advantages of food additives are these followed:
1. Improve the appearance of food.
2. Keep and enhance the nutrition value of food.
3. Increase the variety and conveniences of food.
4. Miantain freshness and prolong shelf life.
5. Provide leavening or control acidity and alkalinity.
Food Additives,Natural Food Additives,Food Additives Preservatives
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