Tomato seedlings "puffiness" lightly ordered
The recent situation of excessive victimization of control over Wang is mainly due to the fact that young seedlings are not "fat" and not resistant to drugs. The occurrence of “puffiness†in young seedlings is mainly caused by the early high-temperature and low-light environment and poor management methods of vegetable farmers. On the one hand, the high-temperature and low-light environment, tomato seedlings are serious, which is not conducive to the accumulation of organic nutrients and transportation to the root system; Excessive watering on the side further exacerbated the leggy of the seedlings, and at the same time led to poor soil air permeability, which was not conducive to the root barb.
The "puffiness" of the seedlings is mainly manifested as: thin stems, long jointing time, weak growth and flatness after the plants grow to a certain degree; the roots are weak and the roots are weak.
This kind of "puffiness" seedlings is very different from our conventional leggy. Their growth potential and continuous growth ability are relatively weak. Therefore, the management of such seedlings should be based on , the combination of health and control, management to take the following measures:
Control the watering, control the frequency of watering and watering appropriately after easing the seedlings, scratch the ground after seeing the water, promote the roots under the control of water, and cultivate strong roots.
The rational use of rooting agent should be based on increasing the root number and extending the length of the root. The rooting agents such as phosphorus-magnesium and alginic acid, chitin, etc. can be used as the rooting agent. Inoculated with bacteria, improved soil.
Inverting the seedlings and controlling Wang for the leggy seedlings, do not hang trees first, put the seedlings down, weaken the vertical growth potential of plants, and cultivate robust seedlings.
At this time, the drug control wang is mainly aimed at plants that do not have a “flathead,†and the “flathead†plants do not recommend regulated drugs. When spraying, it is possible to choose between 0.5 to 1 stick/barrel and 50 grams/pot of potassium dihydrogen phosphate.
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