According to ancient records, wild rice was called wild rice in ancient times, and before the Tang Dynasty it was one of the "six grains", and the seeds were taken as grains. After that, wild rice did not produce seeds due to the infection of black powder fungus, and a new type of vegetable appeared due to the infection.
Wild rice grows and develops in fresh water, the key to fiber insertion breeding, wild rice is divided into a season of wild rice and double season of wild rice, wild rice rhizomes are more developed, water consumption, the provisions of liquid fertilizer higher, the length of sunshine provisions are more lenient, the most suitable growth and development of the temperature of 10 ~ 25 degrees, to high temperature drought and cold patience is worse; general spring planting in the spring around the vernal equinox around the time of planting
Select a piece of rice paddy or shallow water pond, deep pine and foot bottom fertilizer; then select some robust, no male plants wild rice seedlings according to the row spacing 0.8 * 0.6 m spacing inserted into the mud; to be transplanted after the success of the transplantation, to get the fertilizer, weeding, disease control and other work in the work on it; planting wild rice, double-season wild rice is generally planted in November to the following year or April or June-August, the current wild rice is generally planted in the spring.
In the whole process of planting wild rice, if the disease control is good, liquid fertilizer is abundant, 1 acre of land can get 3000 pounds of vegetables and fruits of wild rice. And jeopardize the amount of wild rice production is usually wild rice disease production, is one of the causes of the control is not immediate. Generally in the whole process of planting, the prevalence of wild rice diseases are, wild rice rust, wild rice blight, caraway brown spot, aphids, stem borers, ticks, whiteflies and so on.
In the prevention and control of wild rice disease should pay attention to, wild rice often occurs vegetable fruit wild rice, is due to a black fungal powder, endoparasitism caused by the main stem of the genetic variation, black fungal powder belongs to the bacteria, spray pesticides and fungicides to prevent disease, should be avoided in the pregnancy two periods, if you don't pay attention to avoid, and carry out the spray pesticide and fungicide, there is a high probability of leading to nothing.
For example, wild rice rust, also known as neonatal jaundice, is a very big threat to the production of wild rice, the key injury to petioles and leaves. In the pre-morbidity period, small spores occur on the main stem leaves of wild rice, slightly raised to show brown color. Later, along with the perfection of the pathogenic bacteria, small spore spots cracked, there are powdery yellow rust-colored spores of the pathogenic bacteria, the main stem of wild rice is affected by the slow growth and development of seven, the situation is serious, the leaf blades a wilting.
The wild rice field should increase the application of phosphorus and potassium fertilizer, moderately reduce the capital investment of basic fertilizer, high temperature high and low temperature is very easy to cause rust, so in the high temperature season, to solve the wild rice field to carry out moderate water injection, reduce the temperature, can reduce the incidence of disease. Generally in the prevention and control can choose 15% powder rust Ning wettable powder 800 times liquid + 70% methyltropazine 600 times liquid, carry out early prevention and control, can also cure wild rice black spikes disease, general spacing 7 ~ 10 days spraying the second time, the second time can choose 200 times liquid 67% sodium dichlorvos wettable powder + organosilicon material fertilizer synergist, carry out the whole plant spraying.
Brown spot disease of caraway seed is also attributed to Candida pests and diseases, in the symptomatic production of the early stage, the occurrence of small soft spots with a yellowish halo, right in the middle of the dark brown, in the middle and late halo also become dark brown, right in the middle of the gray sometimes occurs. Encountered wet and cold surface layer above the occurrence of gray-black mold-like material, accompanied by disease intensification, the spot can be even a piece of the prevention and control to avoid the pregnancy and two periods, the application of 70% metribuzin wettable powder 600 times liquid + organosilicone material fertilizer synergist, early prevention and control; or the use of 600 times liquid 40% iso rice pestle net wettable powder leaf sprayer.
Wild rice stripe blight is a key pest and disease that harms the manufacturing of wild rice production. Especially in the biased application of basic fertilizer within the wild rice field damage is more serious. In addition to the need to follow up the application of phosphorus and potassium fertilizer, for wild rice tap water, but also not suitable for long-term deep irrigation. General control, carried out in the pre-disease period, you can use 65% methomyl wettable powder 600 times liquid + organosilicon material fertilizer synergist, or is 1500 times liquid 5% wellbutrin liquid agent to carry out leaf sprayer, the sprayer should be evenly sprayed through.