It is not advisable to apply topdressing to balsam pear.

At present, vegetable farmers planting balsam pear generally adopt the topdressing method of washing with water, which can evenly apply fertilizer into the soil, but it is not advisable to apply topdressing in this way. The reason is that the planting density of balsam pear is relatively small, only 200~300 plants per mu, only 3~6 plants per row, and the fertilizer utilization rate is very low and the waste is serious. Therefore, balsam pear topdressing should be changed to centralized fertilization, such as digging circular ditch fertilization, which can greatly improve the utilization rate of fertilizer. The concrete method: dig a circular ditch about 20cm away from balsam pear plants, the depth of the ditch is 5cm, then apply 50g compound fertilizer or 80g biological fertilizer to each ditch, bury the ditch with soil and water it. Can also be in balsam pear plant side 20 cm or so to dig a half meter long strip ditch, each ditch into the above amount of fertilizer, the effect is also good.