Method for inoculating rhizobia in pasture

Legumes can co-fix nitrogen with rhizobia. However, the formation of legume nodules is closely related to the number of rhizobia in the soil. In particular, legumes were planted for the first time on Xinyi land, or legumes were replanted on the same plot, or legumes were planted on excessively arid, high-acid fields. Increase the number of root nodules to increase the yield and quality of legumes.

When leguminous grasses are inoculated with root nodules, the type of rhizobia should be determined first according to the species of herbage, and secondly, scientific methods of inoculation should be mastered. There are three kinds of inoculation methods currently used in practice: dry nodule method, fresh nodule method and bacterial agent. Seed dressing method.

First, dry tumor method: It is to select the flowering period legume grass roots, rinse with water, placed in a sheltered, dark, cool, sunny place where it is not easy to make it slowly dry, before the forage sowing its dressing.

Second, the bright tumor method: that is, the root bacterium or grated roots diluted with a small amount of water mixed with the cooked soil, incubated at 20-25 °C for 3-5 days, the bacteria to be treated Seed dressing.

Third, rhizobial fungi dressing seedlings: that is, the rhizobial bacteria manufactured products in accordance with the instructions bactericidal liquid sprayed on the seeds, the standard proportion of seed dressing with rhizobial bacteria is 1 kg of seeds mixed with 5 grams of bacteria. When inoculating rhizobial bacteria, it is necessary not to use seed dressing together with pesticides, and not to inoculate directly under direct sunlight. The seeds of the mixed rhizobium have no contact with quicklime or a large amount of fertilizer, so as to prevent the killing of rhizobia and inoculation of rhizobia in the same family and effective in different ethnic groups. Vaccination is invalid.

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