How to Grow Konjac? Latest Planting Technique Tutorial and Yield Per Mu
In rural areas, konjac is generally a semi-wild plant. Usually, when one plant is grown, many plants will sprout from it. After digging them up, leaving some small seed corms in the ground allows the cycle to continue. It is also a perennial plant: the above-ground part dies back in winter while the underground part goes dormant, and it can grow again the following year. It is generally not managed. However, if it is planted on a large scale, cultivation and management work needs to be done well. When growing konjac, not knowing what the yield will be is also a concern for everyone.
1. Yield
If first-generation konjac seeds are used for planting, generally about 100 kg of seeds are used per mu, and 1 kg is about 140 seeds. Then roughly 4000 jin of second-generation konjac is produced per mu. If planting continues, second-generation corms are about 100 g each, and with 3000 plants per mu, one mu can produce 6000 jin of konjac.
2. Planting Conditions
Generally, Amorphophallus albus is planted at medium altitude, while Amorphophallus konjac is suitable for planting at medium to high altitude. It is suitable for planting under trees, in humus soil, in a humid environment, in a place with shade but where light can still reach. It is mainly suitable for planting in mountainous areas, and should be planted on slopes that do not face the sun. Generally, higher environmental humidity is required, as this is beneficial to plant growth. Deep, loose soil is required, which is beneficial to corm growth.
3. Seed Corm Treatment
Select plump corms with no damage, no pest or disease damage, and healthy buds for planting. Use an 800-fold solution of agricultural streptomycin to soak the seeds for sterilization and disinfection, for about half an hour. Lime and plant ash can also be mixed and smeared on the surface of the konjac, then left to dry in the sun for one or two days for disinfection. After that, it can be sown. It is also possible not to plant a whole corm: just use a small knife to cut off the parts with buds separately, dip the cut surfaces in lime and plant ash, and then sow.
4. Planting Method
Determine the planting density. For corms of about 500 g, the plant spacing is 30 cm and the row spacing is 40 cm; for corms of about 300 g, the plant spacing is 25 cm and the row spacing is 35 cm; for corms of about 100 g, the plant spacing is 20 cm and the row spacing is 30 cm. Apply base fertilizer: generally 2000 jin of farmyard manure per mu, plus 50 jin of potassium fertilizer and 60 jin of compound fertilizer. Sow in furrows, cover with 4 cm of soil, and cover with pine needles.
The yield of konjac per mu is also affected by planting management and planting conditions. Under normal planting, the yield is considerable. The planting method can refer to the above content. Planting conditions must be taken into consideration.