At present, autumn tomatoes, eggplants, peppers and other vegetables have entered the initial fruiting stage, that is, the management stage with reproductive growth as the mainstay. Many vegetable farmers have begun to find ways to promote more fruit setting and fast fruit expansion, so that they do not pay much attention to nutritional growth. In fact, this understanding and practice is incorrect. In the early fruiting period of vegetables, the trees have not grown up. Only by strengthening the vegetative growth, the trees can grow up first, so as to lay the foundation for high yield. Otherwise, if too much fruit is retained, resulting in excessive reproductive growth, vegetables will appear as weak trees and small fruits.
Recently, as the weather changes, the temperature difference between day and night outside has widened, which is more suitable for vegetable growth. It is a favorable time to change the weak growth of vegetables in the early period and cultivate strong trees.
Widen the temperature difference between day and night and promote nutrient accumulation
Vegetables entering the initial fruiting period should focus on using appropriate temperature changes to adjust the balance of plant vegetative growth and reproductive growth. In vegetable cultivation, we have repeatedly emphasized the need to widen the temperature difference between day and night, promote the accumulation of organic nutrients, and increase vegetable production. The supply of vegetable organic nutrition is mainly carried out by leaves. The temperature during the day is 28℃-30℃, which is most suitable for photosynthesis. The photosynthesis rate is the highest and the organic nutrition produced is the most. Respiration is another major factor affecting the accumulation of nutrients. Pay attention to lowering the night temperature and reducing respiratory consumption to promote the accumulation of nutrients. Recently, the temperature difference between day and night has been increasing. We should make good use of the current environmental conditions to increase the temperature difference between day and night and promote nutrient accumulation.
Regulate the growth of plants and keep fruits reasonably
How much fruit the plant retains depends on the plant growth and weather conditions. If too much fruit is retained, most of the nutrients will be consumed by the fruit under the plant, and the tree will fall. Once it encounters continuous cloudy weather, the plant will grow weakly, which is not conducive to growing strong trees. In this case, the fruit should be kept reasonably according to the growth of the plant. For example, do not have more than three first ears of tomatoes, and generally leave two. The second ears can leave three fruits, and the fruits will be retained in the future. Do not leave the door peppers and counter peppers of sharp peppers and colored peppers; Eggplant generally starts to retain fruit from the eggplant.
Timely pruning vines
Now, the purpose of pruning vines is not just to hang the trees so that they don't fall down. Many vegetable farmers have discovered that pruning vines is also a way to regulate the growth of vegetables. Take pepper as an example. The initial result is to promote the seeds, and the branches can be hung up tightly to maintain a vigorous growth. When it grows too vigorously, loosen the sling or adjust the angle of the sling to pull the branches obliquely or flatten to suppress the vigorous growth of the plants. If you are planting tomatoes, you can let the tomatoes grow on their knees first, that is, before the first flower of the tomatoes blooms, a section of about 30 cm long from the base of the tomato stems is lying down to the north to inhibit the vegetative growth of the plants and promote the reproductive growth of the tomatoes. Promote fruit setting.
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