How many jin can one mu of konjac harvest when growing konjac?

Konjac must be no stranger to everyone, it is a more common food in life. The edible value of konjac is very high, and it is very popular in the market, so now many people want to grow it. But before planting, more people must be most concerned about its planting technology and yield per mu.

How to grow konjac

1, the choice of planting environment: konjac has a warm and humid temperament, likes the humid environment and hates the dry environment, so the soil should be loose and well drained. Konjac, deep soil layer, high fertility, good ventilation of land resources. On this basis, we should also carry out comprehensive ploughing of the selected land, with a depth of about 40 centimeters.

2. Sowing should be timely: according to the experience accumulated in history, the sowing time is generally taken at the end of March, and the depth of sowing is about five centimeters.

3. Reasonable close planting: there are many varieties of Amorphophallus, and different varieties vary in size. generally, white konjac seeds weigh 100 to 150 grams, and konjac seeds with colors weigh 200 to 250 grams. When sowing, we should also pay attention to several points. first of all, we should pay attention to the specification of reasonable close planting when sowing. For Amorphophallus, the whole area of the aboveground part occupies more than ten times that of the underground tuber plane, and the proportion relationship between the upper leaf area and the underground tuber determines the subplanting density. In general, the better the quality of the land, the more fertile and the larger the seed tubers, then the dense planting should be more sparse, otherwise, it will be denser. Secondly, when planting konjac, seeds of different sizes can be interspersed with each other to ensure that the structure of the land is hierarchical, which can fully improve the utilization rate of land and solar energy, which is conducive to drought prevention and moisturization.

How many jin an mu of konjac can be harvested?

1. The first-generation konjac seeds are generally about 130,160 seeds per kilogram, and the amount of seeds used per mu is about 100kg. The expansion rate is 20 (usually at 20Mu35). The output of the second-generation konjac seeds per mu is 2 tons, which is almost 4000 jin.

2. The second-generation konjac seeds are planted with 3000 plants per mu, with an expansion rate of 10 (usually 10 / mu). The output of commercial konjac per mu is 3 tons, which is about 6000 jin.

How to top fertilize konjac

1. When the first topdressing fertilizer of konjac seedlings reaches about 80%, those with insufficient base fertilizer should be re-applied with seedling fertilizer, with 20 piculs of human feces and urine mixed with 40 piculs of water per mu, and about 5 jin of urea and 5 piculs of human feces and urine with water per mu with sufficient base fertilizer.

2. The second topdressing is from the end of June to the beginning of July, using high quality farm manure such as gasket fertilizer or fire manure to mix urea 6kg 8jin and potassium sulfate 15kg 20jin slightly on the side of the box, combined with shallow soil cultivation.

3. The third topdressing of tuber expansion fertilizer was from late July to early August, the mu was covered with 20 kg of potassium sulfate and covered with soil, and 0.2% potassium dihydrogen phosphate solution was sprayed on the leaf surface for 3 times from August to September.

Common diseases of konjac and their control methods

1. Soft rot. The cultivation management of the planted konjac should be strengthened, the soil should be ploughed and prepared regularly, drained and ventilated, and the seeds without decay and wound should be carefully selected and properly preserved and transported. In addition, when planting konjac, we should also pay attention to the vegetable crops that cannot be continuously cropped or intercropped, such as Solanaceae. Before sowing konjac, it can be soaked in appropriate proportion of agricultural streptomycin solution, fished out and then dried.

2. White silk disease. In view of white silk disease, it is necessary to strengthen the cultivation and management of white silk, and remove stagnant water in time. Continuous cropping and intercropping with peanuts, Solanaceae and soybeans should not be carried out during planting. At the same time, appropriate proportion of Bordeaux solution can be used during the period from konjac to bulb expansion, spray disinfection around the contact between petiole and soil surface.

In fact, the planting method of konjac is not difficult, when planting must do a good job of site selection, and then reasonable close planting. After planting, it is necessary to strengthen field management, in fact, topdressing and disease control are very important. Only by doing a good job of this work can we make the growth of konjac better and the yield per mu higher.