Selecting and retaining seeds of wild rice is very important. What should you pay attention to when selecting and retaining seeds of wild rice?

Now let me talk about the method of selecting wild rice seeds and saving them until they are needed for planting.

1. Select good seeds and cultivate seedlings.

Wild rice is propagated by divisions. It is necessary to choose excellent mother plants for propagation. Select plants with neat growth, medium or weak growth, short tubes, strong tillering ability, dense tillering and clumps, and high rice-pregnancy efficiency. It is a variety that is tall, has thick, white and tender wild rice, has no gray wild rice and male wild rice, is free from diseases and insect pests, and has the characteristics of this variety.

A ripe wild rice is selected during the autumn harvest. Two-ripe wild rice is chosen in summer or autumn. Mark the ones that meet the standards. After harvesting, take the above-ground parts and leave them in the soil to survive the winter. In the spring of the second year, dig them up and divide them for propagation. Dig out old wild rice rhizomes that are not used for planting. When selecting in summer, you should choose seeds with high germination rate for summer or autumn planting. When the wild rice plants are pregnant in the autumn of that year, the bad plants should be eliminated and propagated by divisions the following year.

The suitable temperature for seedlings is 10~20℃. In addition, proper fertilizer and water management is required for seedlings. Fertilizer should be applied early and shallow irrigation should be done in winter to ensure that the plants survive the winter safely and promote early germination and early rooting.

2.Soil preparation and planting.

Before planting, plow deeply and finely, level the land and apply sufficient base fertilizer. Generally, more than 2,500 kilograms of human and animal manure is applied. Moreover, the soil and fertilizer are mixed evenly into a mud shape, so that the fields are level, muddy and fertilized. The base fertilizer for new wild rice fields should be applied during soil preparation, while the base fertilizer for old wild rice fields should be applied around the Spring Festival.

The planting periods of wild rice are generally divided into spring planting and autumn planting.

①Spring planting. Generally, before and after Grain Rain, seedlings with a height of about 50cm can be planted separately. First dig up the selected seedlings, use a sharp knife to follow the growing trend of the tillers, and split into several small ridges. Be careful not to damage the new seedlings. Each small ridge should have some old stems and stolons, and 3 strong tillering seedlings. Reasonable and dense planting, white seedlings are required to be dug and planted.

②Autumn planting. Usually planted around the beginning of autumn. You can use the harvested early lotus roots to plant wild rice. Wild rice seedlings can be cultivated in idle fields or lotus root fields in early April, or in July, wild rice seedlings can be dug from old rice fields and transplanted into large fields. When planted in autumn, the seedlings are more than 1.3 meters tall and have many tillers. Before transplanting, remove the lower old leaves, cut off the leaf tips appropriately, and leave 1-2 seedlings in each small pile. The growth period of autumn wild rice is short, and effective tillering will not occur. It mainly relies on wild rice seedlings to get pregnant. The number of planted seedlings is increased compared with other crops. It is better to plant 4,000 holes per mu.

3. Field management.

Water and fertilizer management. After wild rice is planted in spring, there should be no shortage of water in the field. The water level should be 5-7cm during the budding and growth stage; the water depth should be 6-12cm during the tillering stage of wild rice. In order to promote the early growth of tillers, shallow water should be poured before tillering to increase the soil temperature; in the later stage of tillering, the water level should be deepened appropriately to suppress ineffective tillering. The suitable water depth during pregnancy is between 14 and 30cm. After pregnancy, water can be deeply irrigated, but the water depth should not exceed "Jiaobaiyan" to prevent the leaf sheaths from entering the water and causing rot. In the later stages of pregnancy, plant growth tends to stagnate, the water level should gradually become shallower, and the plant should survive the winter with a thin layer of water or moist soil.

4. Harvest.

The tillers and ramets of wild rice mature at different times and should be harvested in stages. When wild rice is mature, because the growth of the heart leaves is inhibited, the lengths of the inner and outer leaves are almost equal, and the heart leaves are curled into needles and turn yellow again. The pregnant part of the wild rice is significantly enlarged, and the leaf sheath is split, and the wild rice meat is slightly exposed for 1cm. It is harvested. The right time.