The empty stem of green cauliflower means that the main stem of the commercial flower bulb is hollow, which is mainly formed during the mature period of the flower bulb. The hollow surface is lignified and brownish but does not decay.
The cause of empty stem 1 The lack of boron, which is the main reason for the generation of empty stems in cauliflower; 2 The growth of green cauliflower, especially the formation of flower bulbs during the process of rapid growth; 3 The growth period of the bulbs lack of water or improper watering; Received late; 5 related to variety.
Preventive measures
1. Choose varieties that are not easy to empty stems. Such as beautiful broccoli, champion broccoli, green beauty broccoli and other varieties.
2. Reasonable application of boron fertilizer. For boron-depleted soils, when basal fertilizer is applied, 0.75 kg of borax plus dry fine soil per acre can be used to mix and apply furrows, and then 0.2% borax aqueous solution is sprayed on the foliage for 1 time.
3. Properly dense planting to avoid empty stems due to too thin planting and too fast growth.
4. In the formation of flower bulbs, on the one hand, control the amount of nitrogen fertilizer and increase the application of phosphorus and potassium fertilizers; on the other hand, adjust the temperature at 15°C-22°C and avoid the continuous high temperature above 25°C. In order to avoid too much nitrogen fertilizer and sustained high temperature during the formation of flower bulbs, the flower bulbs grow too quickly and form empty stems. Pay attention to soil moisture management and always keep the soil dry and wet.
5. Harvest timely to prevent empty stems from being harvested too late.
High Pressure Extension Tubings
High Pressure Extension Tubings,high pressure PVC extension tube,Extension Tubings,extension tube medical
Anesthesia Medical Co., Ltd. , https://www.jssinoanesthesia.com