Why is it not advisable to apply topdressing to bitter melon along with irrigation water? An analysis of the reasons
At present, the topdressing method commonly used by vegetable growers who grow bitter melon is flushing application with irrigation water. Although this is very convenient and can distribute the fertilizer evenly into the soil, it is not advisable to use this method for topdressing bitter melon. The reason is that bitter melon is planted at a relatively low density per mu, only 200-300 plants per mu, and only 3-6 plants per row. If...
At present, the topdressing method commonly used by vegetable growers who grow bitter melon is flushing application with irrigation water. Although this is very convenient and can distribute the fertilizer evenly into the soil, it is not advisable to use this method for topdressing bitter melon. The reason is that bitter melon is planted at a relatively low density per mu, only 200-300 plants per mu, and only 3-6 plants per row. If flushing application with irrigation water is used for topdressing, the fertilizer utilization rate will be very low and the waste will be serious.
Therefore, vegetable growers are reminded here: bitter melon topdressing should be changed to concentrated fertilization, such as digging ring-shaped trenches for fertilization, which can greatly improve the fertilizer utilization rate. The specific method is to dig a ring-shaped trench 20 cm inside the bitter melon plant, with a trench depth of 5 cm, then apply 50 grams of compound fertilizer or 80 grams of biological fertilizer per trench, cover the trench with soil, and then water. Alternatively, a half-meter-long strip trench can be dug 20 cm inside the bitter melon plant, and applying the above amount of fertilizer per trench also gives good results. It should be noted that after each topdressing of bitter melon, it should be watered promptly so that the absorption effect is better.