Yams have flowers.A perennial vine of the genus Dioscorea of the family Dioscoreaceae, having oblong, usually vertical tubers up to 1 meter in length.Stem is amaranth, without wool.The leaves are simple, alternate in the lower part and opposite in the upper part.Its flowers open in June-September, the inflorescence is spicate, the male inflorescence has 2-8, the female inflorescence has only 1-3.
1, soil: raise yam to want to use a bit deeper basin commonly, its rhizome is perpendicular growth, soil layer is deep ability grows a few longer.In addition, the soil should be loose and fertile, with good drainage, so as to avoid too wet pot soil, affecting the development of plants.In addition, a certain amount of base fertilizer can be mixed into the soil to provide nutrients for its growth.
2. Illumination: Yam likes light, but it is a short-day plant. Attention must be paid to control the duration of illumination. If the illumination time is too long, although the branches and leaves will grow luxuriantly, the rhizome will not grow well, and the flowering period will be delayed.Usually, it should be exposed to strong light every day, but not too long, so as to promote the development of rhizomes.
3, watering: Yam drought tolerance is good, the demand for water is not large, so watering does not need too much.Usually, water the soil after it has dried out, so as to avoid too much moisture in the soil and inhibit root respiration.If you water too much, you need to drain the excess water immediately, and strengthen ventilation, so that the water can evaporate quickly.
4. Fertilization: The demand of yam for fertilizer is not very high in the growth period. In the early stage, a little nitrogen fertilizer can be supplemented to promote the growth of branches and leaves of the plant.In order to promote its flower bud differentiation, a little phosphorus and potassium fertilizer can be applied in the middle stage.In the later stage, compound fertilizer should be applied to supplement more comprehensive nutrients.
