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Usage and precautions of urea (granular) nitrogen fertilizer
2024-09-28
YUNNAN YINGFU TRADING CO., LTD
Special report
This special report introduces the best usage methods and precautions of urea (granular) nitrogen fertilizer, aiming to help farmers make full use of urea, improve crop yield and quality, and achieve efficient and sustainable agricultural production.
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Usage and precautions of urea (granular) nitrogen fertilizer

Urea (granular) nitrogen fertilizer is one of the most common and efficient fertilizers in agricultural production. Proper use of urea can improve crop yield and quality, but improper use may also cause problems such as seedling burn. This article will introduce in detail the correct use of urea and precautions.

1. Fertilization time

Fertilization time is one of the key factors in the use of urea. Urea should be applied during the crop growth period, usually in three ways: base fertilizer, topdressing and foliar spraying.

  • Basal fertilizer: Fertilization before crop sowing can provide the nitrogen needed for crop growth in the early stages.
  • Top dressing: Fertilization during the intermittent period of crop growth to ensure that the crops can continue to obtain sufficient nutrients.
  • Foliar spray: Spray fertilizer solution on leaves to quickly provide nutrients.

2. Amount of Fertilizer

Different crops have different requirements for urea. The amount of fertilizer should be adjusted appropriately according to the crop type, soil fertility and target yield. The following are some recommended fertilizer amounts for several common crops:

  • Wheat: 15-20 kg/mu
  • Corn: 20-30 kg/mu
  • Rice: 25-35 kg/mu

It is recommended to conduct a soil test before fertilizing to determine the appropriate amount of fertilizer.

3. Fertilization method

There are several ways to apply fertilizer, including broadcasting, furrow application and spraying. Choose the appropriate method in different situations:

  • Broadcasting: Suitable for large areas of farmland, evenly spread by spreader.
  • Furrow fertilization: Fertilizer is applied by digging furrows between crop rows so that the fertilizer is close to the roots of the crops.
  • Spraying: Especially suitable for foliar spraying, which can quickly supplement nutrients.

Pay attention to weather conditions when applying fertilizer, and avoid applying fertilizer during strong winds or heavy rain to reduce fertilizer loss and waste.

IV. Precautions

When using urea (granular) nitrogen fertilizer, you need to pay attention to the following points:

  • Prevent seedling burn: Urea will produce ammonia after dissolving, which may cause seedling burn if it comes into direct contact with crop leaves. Therefore, crops should be irrigated in time after fertilization to promote fertilizer absorption.
  • Avoid excessive application: Excessive application of urea not only wastes resources, but may also lead to problems such as soil acidification and environmental pollution.
  • Storage precautions: Urea should be stored in a dry, cool place and avoid mixing with acidic substances to prevent chemical reactions.

By applying urea properly, farmers can not only improve crop yield and quality, but also achieve sustainable development of agricultural production. The above is the usage and precautions of urea (granular) nitrogen fertilizer, I hope it can be helpful to farmers.

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