Latest: Causes and Solutions for Slow Seedling Recovery After Vegetable Transplanting
At present, most autumn-crop vegetables have already been transplanted. During the transplanting process, we often find that vegetables in the greenhouse recover quickly, while some seedlings are slow to establish and grow weakly. This not only affects the time vegetables reach the market, but also affects later yield. So what causes this? Let's take a look together.
1. Insufficiently decomposed fertilizer causes seedling burn
Applying manure that is not fully decomposed before transplanting will cause seedling burn. Some farmers believe that seedling burn is caused by fresh chicken manure, while dried chicken manure is well decomposed and will not cause root burn. In fact, dried chicken manure is just chicken manure that has been dried at high temperature, without any decomposition measures, and it can also cause seedling burn. Therefore, fertilizer applied before or after transplanting must be fully decomposed. If seedling burn has already occurred, water frequently to dilute the harmful substances released by fertilizer fermentation, and pay attention to ventilation to avoid gas damage. At the same time, combine foliar fertilization to supplement the nutrients the plants need.
2. Improper watering causes root suffocation
Many farmers think that as long as it is not deep winter, it does not matter whether vegetables are watered more or less. In fact, at any time in the market, too much watering will cause insufficient oxygen supply around vegetable roots, and in severe cases will cause root suffocation. Once root suffocation occurs in vegetables, their growth will weaken, they will not establish for a long time, and in severe cases it will cause plant death. Therefore, after vegetable transplanting, be sure to pay attention to watering, and never water too much at one time, so as to avoid root damage. For vegetables with root suffocation, shallow hoeing should be carried out in time to increase soil aeration. After the water content in the soil decreases, irrigate the roots with chitin to promote new root regeneration.
3. Root-knot nematode infection
Root-knot nematodes are the most common disease in the vegetable seedling stage. Many farmers find that vegetables grow slowly during planting and show almost no growth recently. They originally thought it was caused by manure burning the seedlings, but after pulling out the plants, they found that root-knot nematodes on the roots were already very severe. Root-knot nematode control should focus on prevention. During the summer fallow period, high-temperature greenhouse sealing should be adopted. Before transplanting, apply pesticide in holes to control root-knot nematodes. After vegetables are transplanted and recover, apply avermectin and other products with irrigation water, and take sufficient measures in advance to prevent root-knot nematodes.
The above is an introduction to the causes and solutions for slow seedling recovery after vegetable transplanting. We hope it can help you. To learn more related knowledge, please stay tuned to us.