Treatment methods for pasture seed before sowing
The hard treatment of leguminous herb seeds and the inoculation of rhizobia The seed coats of many leguminous herbage seeds have a layer of closely packed long columnar Martensitic cells that are not easily penetrated by water and impede water swelling and germination. Therefore, hard seed should be treated before sowing legumes. Processing methods include:
The seed coat can be grinded with roller, or the leguminous grass seed can be mixed with a certain amount of gravel and gravel and placed on a stirring shaker to stir and oscillate until the surface of the seed is rough and fluffy, but it is suitable to not crush the seed. .
Variable temperature seed soaking is generally used where the soil is moist or well-watered. Usually the seeds are soaked in hot water for a day and night and then removed. They are exposed to the sun during the day and cool at night, often adding some water to keep the seeds moist. When some seeds are inflated, they can be sown.
Acid treatment Add sulfuric acid or hydrochloric acid to the seeds and mix them evenly with the seeds. When the seed coat cracks, put the seeds in flowing water to clean them, and add them for drying. Legume forage can co-fix nitrogen with rhizobia, but the formation of legume nodules is closely related to the number of rhizobial bacteria in the soil, and the same legume forage is again planted on the same plot or the plot is overly arid and has high acidity. Plant leguminous pastures are inoculated with rhizobial bacteria to increase the number of root nodules. When legumes are inoculated with Rhizobium, scientific methods of inoculation must be mastered. There are three main types: dry nodules, bright tumors, and bacterial dressings.
Dry tumor method: Select the root of the leguminous herbage at the flowering stage, rinse with water, place it in a place sheltered from wind, darkness, coolness, and low sunlight, and make it dry slowly. Grind the seeds before planting grass.
Fresh tumor method: Rhizobia or ground roots are diluted with a small amount of water and mixed with cooked soil, and cultured at 20°C-25°C for 3 days to 5 days. This fungicide is to be sowed. Mixing.
Rhizobium dressing: The Rhizobium preparation is sprayed on the seeds according to the instructions. The standard proportion of seed dressing with Rhizobium is 5 grams of bacteria per kilogram of seed. When inoculating rhizobial bacteria, it is necessary not to mix seeds with pesticides and inoculate directly under direct sunlight. The seed that has been seeded with rhizobia does not come into contact with quicklime or a large amount of thick fertilizer to avoid killing and killing Rhizobium, and inoculation with Rhizobium in the same family is effective and different. Family inoculation is invalid.
The grasses of the forage grasses of the forage grasses often have awns, glumes, and other appendages. These appendages are not easily removed during harvesting and processing. The seeds should be treated with awns. Going to the mansard can be done using a mansard machine or after pressing with a ring-shaped suppressor.
The Pregermination of Other Herbages Both the Polygonaceae family and the Compositae family are required to soak germination before sowing by soaking the seeds in warm water for a period of time. The temperature of the water and the length of soaking time can be determined according to the characteristics of the seeds.
Seed Disinfection Use 50-fold diluted formalin to soak seeds to prevent ringworm ringworm disease.
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