What is the best fertilizer for broccoli top-dressing?
You may not be familiar with the introduction of the best fertilizer for broccoli top-dressing in green plants and flowers. Let's follow the editor to see the specific content!
What is the best fertilizer for broccoli top-dressing?
The first application of fertilizer for broccoli is to apply a plant-growing fertilizer. For the second and third applications, 75-90 kg of urea and 60 kg of potassium chloride per hectare are used. The fourth application requires a heavy application of flowering fertilizer, applying compound fertilizer with sulfate potassium. During the development of the flower heads, broccoli has a higher demand for trace elements, especially boron, molybdenum, and magnesium. Therefore, an appropriate amount of trace element foliar fertilizer can be applied before flowering.
Timing for broccoli top-dressing
The first top-dressing for broccoli can be applied after the first transplanting has taken root. The second application is 15-18 days after transplanting, the third is 25-28 days after transplanting, and the fourth is 37-40 days after transplanting.
What type of fertilizer to use for broccoli top-dressing
The first application of fertilizer for broccoli is a plant-growing fertilizer. For the second and third applications, 75-90 kg of urea and 60 kg of potassium chloride per hectare are used. The fourth application requires a heavy application of flowering fertilizer, applying compound fertilizer with sulfate potassium.
Should urea or compound fertilizer be used for broccoli top-dressing?
When planting broccoli, organic fertilizer can be applied, along with compound fertilizer, mainly N-P-K compound fertilizers. It is important to appropriately increase the usage of potassium fertilizer and also to combine with root external fertilization. Root external fertilization mainly involves applying trace elements to improve the yield and quality of broccoli.
Broccoli top-dressing method
Broccoli can undergo a top-dressing after planting, mainly using urea. During the growth period, chemical fertilizers should be applied frequently and thinly 4-5 times. During the formation of the flower head, the growth rate is faster, so the amount of fertilizer should be increased, especially phosphorus and potassium fertilizers, to promote leaf and flower head growth. Timely application of vegetable stem strengthening agent can improve quality and enhance resistance to disasters.
Principles of broccoli top-dressing
Broccoli requires a ratio of major elements N, P, K of 14:5:8, and also has varying needs for trace elements such as boron, molybdenum, and magnesium. Therefore, when top-dressing broccoli, it is effective to follow this nutrient requirement to increase yield.
Broccoli top-dressing dosage
Broccoli can undergo a top-dressing when it enters the rosette stage, applying 3-5 kg of pure nitrogen and 6 kg of potassium oxide per mu. After the rosette stage, a second top-dressing is applied, with 2-3 kg of pure nitrogen and 4 kg of potassium oxide per 6 mu. In the early stage of flower head formation, 0.5% borax can be applied as a root external spray.
Precautions for broccoli top-dressing
Broccoli has a high demand for trace elements during the development of flower heads, especially boron, molybdenum, and magnesium. Therefore, an appropriate amount of trace element foliar fertilizer can be applied before budding to increase yield and quality.
The above information on the best fertilizer for broccoli top-dressing is provided for green plant enthusiasts as a reference, and it is hoped that it can help solve your problems in green plant and flower management.