Pepper seedling cultivation methods and time
The early spring season, when the spring is chilly, is the golden age for pepper seedlings. As a representative of Solanaceae plants, pepper seedlings must not only master scientific cultivation techniques, but also accurately grasp the agricultural seasons and solar terms. This article will systematically explain the complete process of pepper seedling cultivation from variety selection to sowing skills to help you cultivate strong pepper seedlings. 1. Three core technologies for pepper seedling raising 1. Selecting improved varieties to lay the foundation. High-quality seeds are the key first step to successful seedling cultivation. It is recommended to select varieties with strong disease resistance and good heat resistance, such as hybrid varieties such as Taijiao 5 and Xiangyan 15. Pay attention to the freshness of the seeds. Place the seeds in 5% salt water and screen them. The full seeds that sink to the bottom are the high-quality choice. 2. Substrate ratio Scientific ratio An ideal seedling substrate should meet three elements: 60% peat soil +30% vermiculite +10% perlite. Add 5kg of decomposed sheep manure and 1kg of calcium superphosphate to each cubic meter of substrate. After mixing, use 50% carbendazim and 800 times solution for disinfection. Pay special attention to avoid using undecomposed manure to avoid burning roots. 3. The precise sowing temperature control adopts the drill sowing method, the row spacing is maintained at 8-10cm, and the sowing depth is 0.5- 1 cm. Soaking seeds in warm water at 55℃ for 15 minutes before sowing can increase the germination rate. The temperature management of the nursery shed needs to follow the principle of "high during the day and low at night": 25-28℃ during the day and 18-20℃ at night. The temperature difference can be adjusted through double shed films. 2. The best seedling raising period for controlling the Yangtze River Basin is February 15-March 5 at the double point of seedling raising time, and can be postponed to mid-March in the northern region. The "two-stage seedling cultivation method" is adopted: first cultivate it in a 50-hole plate for 30 days, and then transplant it to a nutrient bowl when 3-4 true leaves are planted. This method can increase the survival rate of planting by 40%. 3. Innovative seedling cultivation technology has advantages compared with traditional ground sowing and plug seedling cultivation: ground sowing is low in cost but difficult to manage; plug seedling cultivation increases the initial investment by 30%, but saves 50% of the seed quantity. It is recommended to adopt the "floating seedling method" and use the nutrient solution circulation system to increase the uniformity of seedling emergence to more than 95%.
Mastering scientific pepper seedling cultivation techniques requires the organic combination of variety characteristics, environmental control, and water and fertilizer management. From substrate disinfection to temperature control, every link directly affects the quality of seedlings. It is recommended that growers establish a seedling log to record daily temperature and humidity changes, and combine it with Internet of Things monitoring equipment to achieve precise seedling management and lay a solid foundation for the high yield of peppers.