Boron fertilizer plays an important role in the growth and development of wheat. Proper application of boron fertilizer can help wheat reach its full growth potential and improve yield and quality. However, for best results, it is also important to have a reasonable amount of boron application time.
1. The demand for boron for wheat growth:
Wheat is a crop with a low boron requirement, but boron deficiency can adversely affect wheat growth and yield. Boron is one of the trace elements required by plants, and its important roles in wheat include maintaining the structure and function of the cell wall, regulating the metabolism and distribution of plant growth hormone, and participating in photosynthesis.
Boron deficiency can lead to poor growth of wheat, which is manifested by stunted plant growth, yellowing of leaves, stunted development of wheat ears, and decreased seed setting rate. Therefore, it is very important for wheat cultivation to supplement boron fertilizer reasonably.
2. Best time to use:
In the wheat growth cycle, the best time to apply boron fertilizer is from booting to first heading.
The booting stage is the stage when wheat enters the stage of reproductive growth, when the pollen mother cells are reduced**, and most of the leaves are headed. The booting stage is located in the flowering and fruiting stages of wheat and has a higher demand for boron. Boron fertilizer spraying during this period can promote pollen development and uniform seed set.
The first heading stage is the critical period for wheat to enter the setting of fruit. Wheat began to tiller, the plant grew rapidly, and the number of ears increased. Boron fertilizer spraying during this period can help to increase seed setting and yield of wheat.
3. Boron fertilizer spraying method:
Foliar sprays are the most common method of boron application, absorbing boron through the leaves and transporting it quickly to the plant where it is needed.
Boron fertilizer spraying is carried out from booting to first heading stage, and can generally be applied 2-3 times. When spraying boron fertilizer, the following points should be noted:
Application time: It is best to choose a sunny afternoon to spray and avoid periods when the weather is too hot. When the weather is too hot, the sprayed water will evaporate quickly, resulting in boron fertilizer not being adequately absorbed.
Spray concentration: 0 is generally recommended1%-0.2% borax solution is sprayed, i.e. about 20-40 grams of borax per bucket of water.
Spraying amount: According to the actual situation, generally spray 2-5 kg of borax solution per mu.
Spraying method: Spray evenly on the leaf surface of wheat plants, trying to ensure that each leaf can be sprayed.
Spraying frequency: Depending on the fertilization effect, it can be sprayed every 7-10 days as needed.
4. Fertilization strategy of boron fertilizer:
In addition to foliar boron sprays, boron can also be provided through basal fertilization**. Especially in the soil with severe boron deficiency, basal fertilizer is applied every 2-3 years, and 2 kg of borax per mu is applied to meet the demand of wheat for boron.
It should be noted that the appropriate fertilization strategy should be adjusted according to the actual situation, including the content of boron in the soil, the growth status of wheat and climatic conditions.
In summary, the best time for boron fertilizer application is from booting to first panicle stage of wheat. Foliar boron fertilizer can be applied to supplement the boron needed by wheat, increasing seed setting and yield. A proper boron application strategy can help wheat reach its full growth potential and improve yield and quality.