I. Methodology of ground
1. Seeding period: water is generally required at 10°c or above, and in the middle-downstream of the yangtze river, the appropriate planting period is early 10 march and the optimal planting period is from late march to early april。
Cultivation requires that weeds be grown in ponds, lakes, shallow water in trenches or on the edges, that the water quality of cultivation be more than 40 centimetres transparent, that water quality be mixed with the well-rich and less transparent ponds of the ponds, and that weeds be planted are generally not desirable, mainly because the seedlings of the buds cannot perform normal light cooperation. Cultivation must occur in shallow water of about 3-10 cm。
Seeding methods: in practice, the amount of seeded grass, typically 50-100 grams per acre, tends to be several times, if not more than 10 times, for insurance purposes, mainly because of the quality of seeds, which are much more mature. In the case of seedlings, it is recommended that the demonstration household keep suitable seed reserves. By may, the seedlings were not ideal, or had to be replanted when the seedlings were thin in the pond because of such factors as crabs and moss. In production — once sowing in mid-march and again in early april — seeds are immersed in a container for about five days before seeding, and immersed in the blemish with their hands often. The fruit of the scavenger so that the seed of the threaded fruit will come out, then the fine clay will be mixed in the shallow water of the pond, or it will be mixed into mud and then the water will be spilled in the shallow water. Sowing is done in such a way as to avoid heavy weather (which in fact prevents it for a few days) so that the seeds are blown to the pool and spread unevenly。
1. Management of seedlings: when water temperature is 10-18°c, seeding begins to sprout 5-10 days after seeding, and above 18°c, the gestation occurs shorter, with many white shrubs growing in the first sprouts, with young grass growing 5-7 cm in length, leaves of 0. 2-o. 4 cm in width, and leaves thick as green; and when the length of the leaves is around 10 cm, the embers begin to grow up to 1-4 plumes, and each sprouts of the stalks grow into new plants. As a result, the water level should be kept above 6-20 cm by mid-june, up to 30 cm or more in late june, when the grass is full of ponds and 60-80 cm deep in mid-july。
Plantation methods:
2. Seeding period: the water temperature is generally expected to be above 10°c, with the appropriate planting period from 10 march to the beginning of may and the optimal planting period from late march to early april in the middle and downstream areas of the yangtze river。
2. 2. Cultivated waters require that weeds be grown in ponds, lakes, shallow waters in trenches or on the edges, that water bodies be cultivated with transparency of more than 40 cm, that water quality be mixed with pool fattening and less transparent ponds, and that weeds be grown in a generally undesirable manner, mainly because of the inability of young seedlings to perform normal light cooperation. Cultivation must occur in shallow water of about 3-10 cm。
2. 3. Seeding methods: the seeding of weed is generally 50-100 grams per acre. In practice, for insurance purposes, the amount of seed used is often several times, or more than 10 times, mainly because of the quality of seeds, which are much more mature. In the case of seedlings, it is recommended that the demonstration household keep suitable seed reserves. By may, the seedlings were not ideal, or because of crabs, moss, etc., the seedlings rose and the seedlings were replaced when the ponds were thin. In production — once sowing in mid-march and again in early april — seeds are immersed in a container for about five days before seeding and often with hand rubs during immersion the fruit of the scavenger so that the seed of the threaded fruit will come out, then the fine clay will be mixed in the shallow water of the pond, or it will be mixed into mud and then the water will be spilled in the shallow water. Sowing is done in such a way as to avoid heavy weather (which in fact prevents it for a few days) so that the seeds are blown to the pool and spread unevenly。
