The Latest Technical Guide to Konjac Field Management
Konjac is a rather unusual tuber vegetable, but its taste is very distinctive, eating like jelly, and it has a wide planting area in our country. Growing konjac is relatively simple, but field management must be done well during the growing process, such as weeding, watering and fertilizing work. Only then can the yield of konjac be ensured, so how should it be managed during cultivation? Below, the editor brings you the field management techniques for konjac, let's take a look!
1. Intertillage and weeding
Intertillage and weeding are very important for the growth of konjac, especially during July-September, as this period is the peak growth period for konjac. Timely weeding can promote the expansion of konjac tubers and benefit the growth of konjac. When doing intertillage, pay attention to the weather conditions; do not do it in rainy weather, and intertillage should not be too deep to prevent damage to the konjac roots. When weeding, try to use manual weeding methods and reduce the use of herbicides to prevent herbicides from harming the konjac plants. If the temperature is too high and the shade is poor, then it should be done when the light is weaker.
2. Reasonable topdressing
As just mentioned, the peak growth period of konjac is around August, and this period is also when konjac has the greatest fertilizer demand. At this time, topdressing should be mainly potassium fertilizer, supplemented by nitrogen and phosphorus. Sufficient potassium fertilizer can enhance the growth ability of konjac and promote tuber expansion. The application of nitrogen fertilizer should be controlled to prevent excessive vegetative growth of the plants. During the growth period of konjac, topdressing should be done at least twice: the first during the corm switching period of konjac, and the second during the expansion period. These two periods are both important periods for konjac growth, and sufficient nutrients must be guaranteed to meet the growth needs of konjac.
3. Water management
Konjac is a crop that relatively prefers moisture, so during cultivation, air humidity and soil moisture must be ensured. In the middle and late stages of konjac growth, the soil water content should be maintained at about 75%. It should not be too much or too little. Too much will reduce soil permeability, hinder root nutrient absorption and respiration, and affect plant growth. Too little will inhibit the expansion of konjac tubers and reduce yield. Therefore, watering should follow the principle of frequent, small amounts to ensure that moisture remains within the suitable range required by konjac. In September, reduce soil moisture to about 60% to improve nutrient accumulation in the tubers, prevent obstruction of dry matter accumulation, and avoid reducing konjac quality and yield.
4. Pest and disease control
Pest and disease control for konjac is an indispensable management task, especially in the middle and late stages, which are periods of high incidence of konjac pests and diseases. We must strengthen management, disinfect regularly, and control the application of water and fertilizer well to prevent waterlogging and fertilizer damage. Frequently observe the growth of konjac plants, and promptly remove diseased plants once found. Then check the specific disease and use the corresponding pesticide for disinfection. Once common konjac pests and diseases occur, they have basically already lost their treatment value, so we mainly focus on prevention.
The above is a brief introduction to konjac field management techniques. The management of konjac is closely related to its growth. If management is poor, konjac will develop various problems, seriously affecting its growth and reducing planting benefits, and in severe cases causing total crop failure. That is all for today's introduction. This article is for reference only. Friends who want to learn more related information, please continue to follow us!