Watermelon planting and fertilization methods
Careful application of seedling fertilizer, tricky application of vine fertilizer, heavy application of melon fertilizer, plants before flowering and fruiting to increase the supply of water and fertilizer to promote nutritional growth.
(1) to mention the seedling fertilizer: after 5-7 days after planting can be applied, usually urea, compound fertilizer in accordance with the ratio of 1:2 to 0.3% solution, and then chasing can be applied once.
(2) Spreading fertilizer: It can be applied about 20 days after the seedlings are raised. 10-15 grams of urea and 15 grams of potassium fertilizer should be applied to each plant. When applying fertilizer, first dig a trench on both sides 35 cm away from the plant roots, the depth of the trench should reach 25 cm, and then apply fertilizer into the trench, and then cover the soil.
(3) Expansion of melon fertilizer: young fruits can be applied when they reach the size of an egg. 30-40 grams of urea, 15 grams of calcium superphosphate and 30-40 grams of potassium fertilizer are needed for each plant. When applying fertilizer, first dig a vertical trench 50 cm away from the roots of the plant, the depth of the trench should reach 25 cm, then apply fertilizer into the trench, and then cover the soil.