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What are the precautions for applying compound fertilizer?
How should compound fertilizer be applied reasonably? Please introduce the application methods. Compound fertilizer has comprehensive nutrients, high content, and good physical properties, but during application, three issues should be noted: First, select the variety of compound fertilizer according to the soil and crop, only in this way can its fertilizer efficiency be brought into play. Rice, wheat, corn (2348,3.00,0.13%...
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What are the techniques for applying foliar fertilizer? Master these spraying methods
What are the techniques for applying foliar fertilizer? Please guide the method. When spraying foliar fertilizer, you can refer to the following methods: 1. Match the remedy to the problem. To promote early development or increase the thousand-grain weight later, you can spray nitrogen fertilizer and phosphorus fertilizer; to enlarge leaf area and promote vegetative growth, you can choose to spray nitrogen fertilizer and potassium fertilizer; to prevent and treat...
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What should you pay attention to when applying fungicides?
What should you pay attention to when applying fungicides? Please give an introduction. When applying fungicides, pay attention to the following points: Concentration. When spraying with liquid formulations, it is often necessary to use water to prepare or dilute the agent to an appropriate concentration. Too high a concentration will cause phytotoxicity and waste, while too low a concentration will be ineffective. For some wettable powders, a small amount of water should first be added to make the powder into a paste, then...
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What should be noted when applying nitrogen fertilizer? A detailed explanation of the key points for using various types of nitrogen fertilizer
What should be noted when applying various nitrogen fertilizers? Please introduce the following points to note when applying various nitrogen fertilizers: 1. Ammonium nitrogen fertilizers should not be mixed with alkaline fertilizers. After mixed application, ammonia gas will volatilize, reducing the fertilizer effect. 2. Ammonium bicarbonate should not be broadcast. Ammonium bicarbonate is extremely unstable in nature, and after being broadcast on the soil surface, under...
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Is it okay to apply only nitrogen fertilizer as base fertilizer in autumn and winter?
Is it okay to apply only nitrogen fertilizer as base fertilizer in autumn and winter? Please give an introduction. Some farmers are in the habit of applying 80-100 kg of ammonium bicarbonate or 60-80 kg of urea per mu when sowing autumn and winter crops. This method of applying only nitrogen fertilizer often causes some adverse consequences. First, it reduces the utilization rate of chemical fertilizer. Applying too much ammonium bicarbonate and urea...
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What precautions should be taken when applying fungicides as a soil drench to prevent pests and diseases?
What should be noted when applying fungicides as a soil drench to prevent pests and diseases? Here is an introduction. When applying fungicides as a soil drench to prevent pests and diseases, note the following points: 1. The choice of product must be reasonable: choose a fungicide that is highly targeted and has a strong disease-control function. Do not use products blindly; minimize waste as much as possible and avoid delaying the timing of control...
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How to apply agricultural fungicides for the best effect?
How are agricultural fungicides applied? Here are the methods. Agricultural fungicides are chemical agents that can directly kill the spores and mycelium of fungi or bacteria, or inhibit the growth and development of pathogens. 1. Agricultural fungicides must be used before crop diseases occur or in the early stages of disease. Fungicide use differs from insecticide and acaricide use. Insecticides and acaricides...
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What is the best time to apply topdressing to crops?
When is the effect of topdressing on crops good? Please give an introduction. The following introduces some of the best topdressing periods for crops: The best topdressing period for corn is under the principle of balanced fertilization. From after jointing to the large trumpet stage, corn is at its peak period of nutrient uptake, so the first topdressing can generally be applied around jointing. Apply 10 kg of urea per mu...
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How to apply pesticides to kill insects effectively? Mastering the correct method is key
How can pesticide application be effective for killing insects? Please advise on methods. To get better results when spraying pesticides to kill insects, you can refer to the following two approaches: 1. Determine the control pesticide according to the type and size of the pest. Pests can be divided into aphids and planthoppers, snout moths, spiders, beetles, etc. Different types of pests require different pesticides...
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Key points for topdressing longan at three stages, apply fertilizer skillfully to promote high yield
Longan: apply fertilizer skillfully for high yield. Key points for topdressing longan at three stages
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