1. Land selection and preparation: Select fields with deep soil, strong water and fertility retention, and sufficient water sources as planting land, then plow the soil, and apply decomposed farmyard manure per acre. 3000 kg as base fertilizer. 2. Reasonable planting: Planting is carried out on a sunny afternoon when the plant height reaches about 20 cm. The distance between planting rows is 70-80 cm and the spacing between piers is 65 cm. About 1,200 piers can be planted per acre of land. 3. Water management: Keep the water level at 3-5 cm before tillering, increase the water level to 12-15 cm after tillering, and increase the water level to 15-18 cm during the gestation period. Drainage should be done in time in case of heavy rain.

1. Land selection and preparation

1. Select fields with flat land, deep soil, strong water and fertility retention, and sufficient light and water sources as planting sites, especially those with cool water. Passing through paddy fields.

2. Plow the land and apply 3,000 kilograms of decomposed farmyard manure or 2,500 kilograms of relatively thick human waste per mu.

3. If you choose a rice field as a planting site, you need to increase the amount of base fertilizer. After the soil is raked, a shallow water layer of 2-3 cm needs to be poured into it to make the field level, muddy and fertile.

2. Reasonable planting

1. The appropriate transplanting time is from April to early May. When the plant height reaches about 20 cm and the paddy soil is When the temperature reaches 10℃, planting can be carried out in the afternoon on a sunny day.

2. The distance between planting rows is 70-80 cm, and the spacing between piers is 65 cm. When planting, it is necessary to divide the small and large rows into walkways.

3. The planting density is about 1,200 piers/acre, ensuring that the number of tillering seedlings reaches about 6,000.

4. If the wild rice seedlings are too tall, you need to cut off the leaf tips and control the seedling height to about 25-30 cm to avoid lodging after planting.

3. Water management

1. Keep the water level at 3-5 cm before tillering of seedlings. This can increase the ground temperature and encourage the plants to take root and tiller. .

2. From June to the late tillering stage, the water level can be increased to 12-15 cm, which can not only have a cooling effect, but also prevent the plant from developing ineffective tillering. The water quality must be changed on time, otherwise it will easily lead to soil hypoxia and root rot.

3. After entering the gestation period, increase the water level to 15-18 cm. The highest water level should not exceed 2/3 of the pseudostem to prevent the stem tube from elongating. In case of heavy rain, drainage work needs to be done well, otherwise the water level will be too high, which will cause the stem tubes to stretch.

4. In the later stages of pregnancy, the water level should be lowered to 3-5 cm for harvesting. After harvesting, the planting area should be kept in a shallow water layer or kept in a moist state, which will help survive the winter.

5. The suitable growth temperature of wild rice is about 24℃. After entering the tillering stage, the temperature should be kept at about 27℃. After entering the gestation period, the temperature difference between day and night should be controlled.

4. Top dressing

1. Provide seedling fertilizer

(1) After the wild rice seedlings survive (about 7-10 days after planting) ), apply 500 kilograms of human feces or 10-20 kilograms of ammonium bicarbonate per mu, which can promote seedlings.

(2) If the base fertilizer is sufficient, the amount of fertilizer can be appropriately reduced.

2. Tillering fertilizer

(1) In the early stage of tillering, apply 1,000 kilograms of human feces or 20-30 kilograms of ammonium bicarbonate per mu, which can promote effective tillering and plant growth. .

(2) There should be an interval of about 10 days between tillering fertilizer and the first top dressing. However, if seedling fertilizer is not applied, tillering fertilizer can be applied in advance.

3. Adjusting fertilizer

(1) The peak period of tillering is mostly from June to July. During this period, 10-15 kg of ammonium bicarbonate can generally be applied per mu, or it can be applied according to the plant Carry out top dressing for optimal growth.

(2) If the plant is growing strongly, there is no need to fertilize.

4. Fertilizer for fermentation

(1) When the pseudostems of tillering seedlings become flat and the number reaches 10-20, fertilization for fertilization should be applied again, that is, 2500 per mu. -3000 kg of decomposed human feces or 30-40 kg of ammonium bicarbonate.

(2) After fertilization, it can promote the expansion of fleshy stems and increase yield.

(3) Fertilizer must be applied at the right time. Applying it too early will easily lead to plant growth, and applying it too late will affect the yield.

5. Precautions

After each top dressing, wait for the fertilizer to be absorbed into the soil before watering.

5. Cultivating and weeding

1. After the plants survive and the yellow-leaf wild rice is picked, cultivating and weeding should be carried out in a timely manner. When cultivating, the weeding should be done from near to far to avoid damage. to tillering seedlings. The standard for cultivating is that there are no weeds in the field and the soil is flat.

2. In the later stage of tillering, all old and yellow leaves at the base of the plant should be removed. The yellow leaves should be picked every 7-10 days and 2-3 times in a row to enhance ventilation between plants. luminosity.

3. The picked yellow leaves can be put into the soil as fertilizer.

6. Prevention and control of pests and diseases

(1) Diseases

① Flax spot disease: 50 grams of carbendazim can be sprayed during prevention and control 500 times liquid.

② Sheath blight: For prevention and control, spray 500 times of Jinggangmycin solution.

③ Wild rice rust: In the early stage of the disease, spray 70 generations of mancozeb 700 times a liquid, or 20 fencozeb 1500 times a liquid, or 97 sodium chloride 500 times a liquid, spray every 7-10 days 1 time, spray 2-3 times continuously.

(2) Insect pests

① Thrips and green planthoppers: 40 dimethoate 1000 times solution can be sprayed during control.

② Giant borer and stem borer: Spray 1000 times liquid of 5 Ruigent, or 800 times liquid of BT series wettable powder, or 2500 times liquid of 5 Taibo emulsifiable concentrate.

7. Harvest

1. Plant in winter and spring and harvest in summer; plant in summer and harvest in autumn. The harvest time of wild rice planted in mid-to-late March is mostly from May to June. The harvest time is also affected by the climate of the planting area. When planted in mountainous areas, the harvest time is mostly from mid-August to early September.

2. Harvest time should not be too early or too late. If harvested too early, the yield will decrease. If harvested too late, the quality will decrease.

3. When harvesting, cut off the leaves and cut off the stem tube, leaving the leaf sheath at 40 cm in length, and harvest once every 3-4 days. After harvesting, the wild rice with leaf sheaths can be soaked in clean water, which can be stored for about 3-5 days.