Cabbage vegetables include ordinary cabbage, purple cabbage, kale, Brussels sprouts, broccoli, broccoli, kale and the like(21 cell propagation trays wholesale). Cabbage vegetables belong to cold vegetables, but the cold and heat resistance between them are different. Cold resistance is not as good as various cabbage crops. After 23 days, the seedlings are slowed down. Cabbage should be selected from 128-well tray seedlings(wholesale nursery pots). In order to prevent the cabbage seedlings from being tempered by vernalization, the varieties with strong cold resistance should be selected.
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(cheap plastic v10 nursery pots wholesale canada)Cabbage, kale can withstand -1 to -2 ° C low temperature(32 cell propagation trays wholesale), even short-term -5 ° C low temperature, Brussels sprouts and purple cabbage are stronger than cabbage and kale, broccoli, broccoli and kale are mild Wet climate, so we should pay attention to temperature management first when we are breeding in 100% season(plastic nursery pots manufacturers). Cabbage 18~20 Purple Cabbage 18-20 Kale 20~24 Brussels sprouts 16~20 broccoli 18-25 broccoli 16~22 24-30 kale.
It can be seen from the above table that: except for the warmer growth of kale, other vegetables are at 16~25°C(50 cell propagation trays wholesale). Therefore, the cultivation of cabbage seedlings in spring should choose nursery seedlings, and the daytime temperature after sowing is kept at 20-25. °C, 18-22 °C at night. When 60% of the seeds are emerged, in order to prevent the seedlings from growing, the temperature should be appropriately lowered(plug trays wholesale). During the day, 18~20°C, 10~12°C at night, and 0.5cm of soil at the same time, it can play the role of protecting and preventing the lengthening.
(cheap plastic v10 nursery pots wholesale canada)When 2-3 pieces of real leaves are unfolded, it is necessary to divide the seedlings in time(72 cell propagation trays wholesale). The temperature after seedlings should be properly increased. During the daytime, 24 to 26 °C, and at night, 18-20 °C, the temperature management should be reduced to increase the amount of air release, and the night temperature can be reduced to 5-8. °C. The nighttime temperature management of cabbage crops after 4 seedlings of the seedling age should be paid attention to, and it should not be lower than 6-8 °C for a long time(black plastic nursery pots). In this period, if the seedlings are in low temperature for a long time (more than 30 days), they will cause convulsions and loss. Commodity value.
The variety selection of broccoli is very important(98 cell propagation trays wholesale), and autumn varieties must not be sown in spring, otherwise the small yield of flower balls is low. Cabbage crops belong to hi-fertilizer crops. When preparing nutrient soil, organic fertilizer and chemical fertilizer should be added. 40% of decomposed horse manure per cubic meter, 10% of decomposed chicken manure, 0.5 kg of urea, 1-2 kg of superphosphate(plastic nursery pots wholesale), and crops at the seedling stage The phase is fertilized 1 to 2 times, and 0.3%-0.5% of urea is added with dihydrogen phosphate.(cheap plastic v10 nursery pots wholesale canada)
Cabbage crops can be seeded with plugs(105 cell propagation trays wholesale), adding 3.5:15:15 NPK ternary compound fertilizer 3.0-3.2 kg per cubic meter of matrix, or 1.5 kg of urea and 0.8 kg of potassium dihydrogen phosphate per cubic meter of matrix, or 2.5 Kg diammonium phosphate. Cold season breeding should be carried out in warm greenhouses, solar greenhouses and other facilities with good insulation performance(plastic nursery pots); high temperature season nursery should be rainproof and cool, and nursery sites should be located in cooler places, and conditions can be covered with shade nets.