How to Cultivate Cold-Water Wild Rice Stem? A Detailed Explanation of the Latest Cultivation Techniques
Cold-water wild rice stem is wild rice stem harvested by using cold-water irrigation during the cultivation of wild rice stem. Cultivating wild rice stem in this way is beneficial to the growth of wild rice stem and the formation of the stem, and the wild rice stem varieties are excellent. Follow the editor below to take a look at the cultivation techniques for cold-water wild rice stem.
1. Land Selection and Land Preparation
For cold-water wild rice stem cultivation, it is advisable to choose farmland with cold-water irrigation from a reservoir and plant in concentrated contiguous plots. The reservoir is required to have a water storage capacity of more than 20 million cubic meters; only when the water source is sufficient will the cooling effect be good. When plowing the wild rice stem field, apply 2500-3000 kg of decomposed organic fertilizer per mu. If organic fertilizer is guaranteed, it can be combined with chemical fertilizer, and then irrigate and rake the field surface level.
2. Fertilization
Because cold-water wild rice stem has a short growth period, base fertilizer should be applied heavily and topdressing should be applied early. The amount of fertilizer applied is best split half for base fertilizer and half for topdressing. In addition to sufficient organic fertilizer, the base fertilizer also requires 50 kg of calcium superphosphate and 25 kg of ammonium bicarbonate per mu. Apply tillering-promoting fertilizer 7-10 days after planting, generally 10-15 kg of urea per mu. After that, observe the growth of the wild rice stem plants and apply quick-acting nitrogen fertilizer once every 25 days, with 10-20 kg of urea per mu each time, until fertilization is stopped in late July. If topdressing is improper, or too much quick-acting nitrogen fertilizer is applied, it can very easily cause excessive vegetative growth, increased tillering, and delayed stem formation, so cold-water wild rice stem is generally not given fertilizer for stem formation.
3. Water Management
For cold-water wild rice stem, irrigation generally follows the principle of shallow-deep-shallow. After planting and before tillering, it is only necessary to maintain a water layer of 3-5 cm to help raise soil temperature and promote rooting and tillering. After June, deepen the water level to 12-15 cm, and at the same time change the water frequently to lower the water temperature and prevent soil oxygen deficiency. After entering the stem formation period, the water layer should be deepened to 15-18 cm, but it must not exceed two-thirds of the pseudostem, so as to avoid elongation of the stem tube. In the late stem formation period, lower the water layer to about 3-5 cm to facilitate harvesting, and afterward maintain a shallow water layer or a moist state for overwintering, but it must not be dry.
4. Pest and Disease Control
During the growth period of cold-water wild rice stem, the main diseases are rust disease and brown spot disease, and spraying can begin at the early stage of onset for both. Wild rice stem rust disease can be controlled by spraying triadimefon 1-2 times, with an interval of 7-10 days. Brown spot disease can be controlled by spraying tricyclazole powder, also once every 7-10 days. The main insect pests include the greater rice stem borer, the striped stem borer, the long-winged planthopper, whiteflies, and the black-tailed leafhopper. Pay attention to spraying the corresponding pesticides for control, and also pay attention to rotating pesticides to avoid developing resistance.
The above is an introduction to the cultivation techniques for cold-water wild rice stem. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.