Detailed Explanation of Fertilization Methods for Edible Mushrooms and Greenhouse Broccoli Seedling Cultivation Techniques

Broccoli has a short seedling age (30-35 days). Depending on the specific situation, seedlings can be raised in mid-to-late October, and a large amount can be brought to market before the Spring Festival. For seedling cultivation, nutritional pots (10 cm × 10 cm) or the nutritional square method (8 cm × 8 cm) can be used. The nutrient soil is prepared with 8 parts fertile garden soil plus 2 parts fully decomposed chicken manure or sheep manure, sown with 2 seeds per hole, using 20 grams of seed per mu, with a sowing depth of 0.5-1 cm. After sowing, water thoroughly once. After emergence in 2-3 days, remove weeds. The seedbed should be kept moist at all times. When 1-2 true leaves appear, thin the seedlings 1-2 times in a timely manner, removing weak and overly dense seedlings. Keep the bed temperature at 20-30°C. Conversely, if the bed temperature is too low and the seedling age is too long, small old seedlings will result, leading to short plants and reduced yield after transplanting. If the bed temperature is too high and the humidity is too great, the seedlings will become spindly and form weak seedlings, leading to weak plant growth and reduced yield. When the seedlings grow to 5-7 true leaves at about 30-35 days, control fertilizer and water, ventilate to reduce humidity, and harden the seedlings for 3-5 days to improve the survival rate after transplanting.