The latest treatment methods of excessive application of nitrogen fertilizer in rice

Nitrogen fertilizer is one of the indispensable elements for rice growth. It can promote rice growth and improve it. However, we all know that excessive nitrogen fertilizer will only cause harm to rice. So how to deal with excessive nitrogen fertilizer application in rice? Let's take a look at the detailed introduction.

1. Excessive nitrogen application harms

The harm of excessive nitrogen fertilizer application is greater, and the harm of each growth stage is also different. Excessive nitrogen fertilizer application at tillering stage of rice, excessive growth on the ground and slow root growth will make the root system unable to provide sufficient nutrients at tillering stage of rice, resulting in shriveled grains. In the growth period, too much nitrogen fertilizer is applied, the plant will grow luxuriantly, but the stem is weak, the plant is too high, causing the lower part to be hidden, the temperature and humidity are also high, it is easy to breed diseases and insect pests, and it is easy to lodge in the later stage, seriously affecting the yield, and when it is serious, it will not be harvested. Excessive application of nitrogen fertilizer will not only lead to a large accumulation of nitrate nitrogen in rice poisoning, but also easy to suffer in the later stage, serious yield reduction, and increased protein content of rice, affecting the taste.

II. Treatment methods

1. Excessive application of nitrogen fertilizer is easy to cause premature senescence. Potassium dihydrogen phosphate can be sprayed, which can increase yield and prevent premature senescence. Generally, in the booting stage and heading stage, 100-200 grams of potassium dihydrogen phosphate mixed with 15-20 kilograms of water can be sprayed once. This has a significant effect on the seed setting rate and grain weight of rice. Because it is a high concentration spray, it is recommended to use high-purity potassium dihydrogen phosphate instead of potassium dihydrogen phosphate with more impurities, so as not to affect the effect.

2. Pay attention to the application of silicon fertilizer to enhance the lodging resistance of rice. If conditions permit, it can be applied properly for 1-2 times to enhance the lodging resistance of rice, especially in fields close to lakes and seas. The wind is strong and lodging resistance prevention is necessary.

3. The control of diseases and insect pests must be in place. When spraying potassium dihydrogen phosphate, it can be combined with benzpropiconazole to prevent rice false smut and sheath blight. If it is a variety infected with rice blast, tricyclazole or pyraclostrobin can be added.

The above is an introduction to the treatment method of excessive nitrogen fertilizer application in rice. I hope it can help you. If you want to know more about it, please pay attention to us.