Last year, during rapeseed sowing and seedling transplanting, there was continuous drought and little rain. Many live or transplanted fields were not applied with base fertilizer, let alone boron fertilizer. At present, except for a few rapeseed seedlings that have been plucked and transplanted, the rapeseed seedlings of some farmers have exhibited symptoms of boron deficiency.
The application of boron fertilizer is an indisputable fact to promote the increase of rapeseed. Especially the application of boron fertilizer in soils with severe boron deficiency is more significant. The practice of many years has proved that the increase is 20%, and the increase is more than 30%.
However, in the process of promoting the application of boron fertilizer in rapeseed, there are still quite a few farmers who do not have a comprehensive understanding of the need for boron in rapeseed. First, some farmers only apply boron fertilizer in the base fertilizer, ignoring the application of boron fertilizer; second, only pay attention to flowering spraying, using flowering spray instead of boron in the whole process; third, it is considered that the application of boron fertilizer in seedling stage has no effect; The amount of boron fertilizer applied is insufficient; the fifth is that the quality of boron fertilizer is not paid attention to, and only low-priced boron fertilizer with low content (effective content below 5%) is used, and high-grade, high-content, high-quality boron fertilizer is not allowed. Therefore, it often leads to the occurrence of symptoms of boron deficiency in different degrees of rape. According to field investigations, some of the leaves of the rapeseed seedlings have been slightly purple or purple, the lower leaf margins are rolled outward, and some of the central leaves are longitudinally contracted, and the top leaves are slow and not flat enough. In the case of boron-deficient rapeseed, the main stem grows slowly, the flower buds are poorly developed, and the top of the main stem is atrophied. There is no obvious final flowering period in the flowering season, and the young fruit can not be formed normally. The common pods are common between the pods of the inflorescence, and the rapeseed with serious boron deficiency is not real or only a small number of pods.
The above problems are manifested in one or the other in different rapeseed producing areas. In order to apply rapeseed boron fertilizer correctly and better, boron fertilizer should be applied throughout the whole process of rapeseed.
Comprehensive improvement of the need for boron in rapeseed Although the boron fertilizer is a trace element, it can play an irreplaceable role in the growth period of rapeseed. Boron can accelerate the formation of rapeseed cell membrane and enhance its activity. Boron can help the vascular bundle development of the roots of rapeseed and the normal extension of the growth point of the main stem to prevent necrosis. Boron can promote the synthesis, transformation and transportation of rapeseed carbohydrates, and plays an important role in the development of vegetative organs and reproductive organs. There is no high yield of boron-deficient rapeseed.
Multi-method use, flexible application of boron fertilizer First, the application of base fertilizer before sowing, about 1 kg per por of borax, or holding boron 0.2-0.5 kg; the second is to use seedling transplanting, 2-3 days before planting Apply 50% of 0.1%-0.2% borax solution per mu of seedbed. Or use 0.2% borax to dip the roots when planting the seedlings; the third is to spray 0.2% of the Suile boron solution at 60 kg per mu during the wintering period; the fourth is to spray 0.2% during the bud period. The speed of the Boron solution is 60-70 kg; the fifth is about 80 kg per mu of the initial spraying speed of the boron solution.
Pay attention to the quality of boron fertilizer, pay attention to the application method not to be cheap, just use low-content parallel fertilizer, advocate the application of high-content boron, quick-lean boron, or other high-content available boron fertilizer. When applied as a base fertilizer, it is best to mix it with organic fertilizer, farmyard manure or bio-organic compound fertilizer, or with other multi-component fertilizers. For topdressing, one must be fully dissolved, the second should be controlled, and the third should not be sprayed or leaked.
Author: Yuhong Zhang (Department Xiaogan City, Hubei Province senior agronomist)
The application of boron fertilizer is an indisputable fact to promote the increase of rapeseed. Especially the application of boron fertilizer in soils with severe boron deficiency is more significant. The practice of many years has proved that the increase is 20%, and the increase is more than 30%.
However, in the process of promoting the application of boron fertilizer in rapeseed, there are still quite a few farmers who do not have a comprehensive understanding of the need for boron in rapeseed. First, some farmers only apply boron fertilizer in the base fertilizer, ignoring the application of boron fertilizer; second, only pay attention to flowering spraying, using flowering spray instead of boron in the whole process; third, it is considered that the application of boron fertilizer in seedling stage has no effect; The amount of boron fertilizer applied is insufficient; the fifth is that the quality of boron fertilizer is not paid attention to, and only low-priced boron fertilizer with low content (effective content below 5%) is used, and high-grade, high-content, high-quality boron fertilizer is not allowed. Therefore, it often leads to the occurrence of symptoms of boron deficiency in different degrees of rape. According to field investigations, some of the leaves of the rapeseed seedlings have been slightly purple or purple, the lower leaf margins are rolled outward, and some of the central leaves are longitudinally contracted, and the top leaves are slow and not flat enough. In the case of boron-deficient rapeseed, the main stem grows slowly, the flower buds are poorly developed, and the top of the main stem is atrophied. There is no obvious final flowering period in the flowering season, and the young fruit can not be formed normally. The common pods are common between the pods of the inflorescence, and the rapeseed with serious boron deficiency is not real or only a small number of pods.
The above problems are manifested in one or the other in different rapeseed producing areas. In order to apply rapeseed boron fertilizer correctly and better, boron fertilizer should be applied throughout the whole process of rapeseed.
Comprehensive improvement of the need for boron in rapeseed Although the boron fertilizer is a trace element, it can play an irreplaceable role in the growth period of rapeseed. Boron can accelerate the formation of rapeseed cell membrane and enhance its activity. Boron can help the vascular bundle development of the roots of rapeseed and the normal extension of the growth point of the main stem to prevent necrosis. Boron can promote the synthesis, transformation and transportation of rapeseed carbohydrates, and plays an important role in the development of vegetative organs and reproductive organs. There is no high yield of boron-deficient rapeseed.
Multi-method use, flexible application of boron fertilizer First, the application of base fertilizer before sowing, about 1 kg per por of borax, or holding boron 0.2-0.5 kg; the second is to use seedling transplanting, 2-3 days before planting Apply 50% of 0.1%-0.2% borax solution per mu of seedbed. Or use 0.2% borax to dip the roots when planting the seedlings; the third is to spray 0.2% of the Suile boron solution at 60 kg per mu during the wintering period; the fourth is to spray 0.2% during the bud period. The speed of the Boron solution is 60-70 kg; the fifth is about 80 kg per mu of the initial spraying speed of the boron solution.
Pay attention to the quality of boron fertilizer, pay attention to the application method not to be cheap, just use low-content parallel fertilizer, advocate the application of high-content boron, quick-lean boron, or other high-content available boron fertilizer. When applied as a base fertilizer, it is best to mix it with organic fertilizer, farmyard manure or bio-organic compound fertilizer, or with other multi-component fertilizers. For topdressing, one must be fully dissolved, the second should be controlled, and the third should not be sprayed or leaked.
Author: Yuhong Zhang (Department Xiaogan City, Hubei Province senior agronomist)
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