Potatoes Only Growing Vines Without Setting Tubers: Prevention and Remedial Measures

Potatoes are the most common vegetable in our daily lives, and for growers, the worst thing is when potatoes only grow vines without setting tubers, especially when planted in spring, when this phenomenon occurs more often. Once it happens, it has a huge impact on potato yield, so preventive and remedial measures need to be taken well. Now let's take a look together with the editor.

1. Causes

There are many reasons that cause potatoes to only grow vines without setting tubers, such as sowing too late, improperly introduced varieties, varieties unsuitable for the local environment, too shallow hilling, or soil that is too dry. In all these cases, potatoes may only grow vines without setting tubers.

2. Preventive measures

To obtain high yield, when selecting varieties it is advisable to choose excellent virus-free, extremely early-maturing or early-maturing varieties. When sowing, measures such as accelerating sprouting, sunning the sprouts, and timely early sowing should be used to promote early emergence and rapid growth, so that the tuber formation and enlargement period is under relatively suitable environmental conditions, thereby obtaining a higher yield. When hilling, note that the thickness must not be less than 12 cm. If the covering soil is not thick enough, after emergence, hill the soil 1-2 chi as the seedlings grow. Too thin a soil cover will cause drastic changes in ground temperature, while a thicker soil cover can keep the tuber-forming part at a relatively balanced and cool ground temperature. Nitrogen fertilizer is beneficial to plant growth, but if applied too late, it can easily cause excessive vine and leaf growth, which is not conducive to tuber setting and tuber enlargement, so nitrogen fertilizer should be applied reasonably at the right time, and not too late.

3. Remedial measures

After discovering the problem, promptly investigate the cause and remedy it in time. Water frequently but lightly to keep the soil moist, which is beneficial for the potato's uptake of fertilizer and water, and can also lower the ground temperature in the later part of spring and promote tuber enlargement, but be careful not to apply too much fertilizer or water. According to the soil conditions, for those that have not yet closed the rows and have not been hilled in later management, proper hilling can be done as appropriate to thicken the soil layer, which can reduce the impact of external high temperatures on potato tuber enlargement. From the late growth stage to the tuber-setting stage of potatoes, growth should be controlled in time. Multi-effect paclobutrazol can be sprayed to control excessive plant growth, increase the proportion of large and medium tubers, and increase yield.

The above is an introduction to the prevention and remedial measures for potatoes only growing vines without setting tubers. We hope it can help you. To learn more related knowledge, please keep following us.