There is such a drawback in the production of cucumbers in winter-warm greenhouses: that is, the melons gradually decline after March of the following year, and there is a serious imbalance in vegetative growth and reproductive growth, resulting in a significant reduction in cucumbers. The author observes and analyzes in practice and confirms that the main cause of this premature aging phenomenon comes from the root system. In addition to fixing the plant on the soil, it is mainly able to absorb water and nutrients from the soil and synthesize certain important substances that the plant needs, and continuously transports it to the ground. The roots also have many physiological functions. It is plant growth. Foundation. Due to the long growing time and high yield of cucumber in winter greenhouses, it is also a shallow rooted plant. On the basis of colonization, due to fertilizer, water, and microclimate, some of the plant's lateral roots or adventitious roots are aged and necrotic, leading to the occurrence of premature aging. To eliminate this malpractice, it is necessary to cultivate cucumber roots in time.
The method of cultivation and regeneration of roots is simple: (1) The cucumber pods on the ground are first disinfected with 1000 times potassium permanganate solution, and then all or part of these guashes are covered with earth about 5 cm, and then water is poured. 3-5d can grow new adventitious roots. (2) Dig a 5-7cm deep hole next to the original plant, and bury the roots in 2-3 sections under the original compaction and watering, so that new roots can be produced quickly. After cultivation with the above two methods, cucumber plants that have taken new roots are quickly restored to life. In the case of timely management of topdressing, watering, pest control, etc., the picking time can be extended to August to September.
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