What is silage?
Silage is a kind of roughage obtained by chopping the green fodder with a moisture content of 65%, 75%, and under the condition of airtight anoxia, through the fermentation of anaerobic lactic acid bacteria to inhibit the reproduction of various miscellaneous bacteria. It is a good source of feed for livestock because of its sour smell, soft and juicy, good palatability, rich nutrition and conducive to long-term preservation.
The raw materials of silage are corn, ryegrass, awnless brome, alfalfa, clover, Artemisia mandshurica, sweet potato, pumpkin, amaranth, aquatic plants and so on.
1. General silage: raw materials are chopped, compacted and sealed to multiply a large number of lactic acid bacteria in an anaerobic environment, thus turning starch and soluble sugar in feed into lactic acid. When lactic acid accumulated to a certain concentration, it inhibited the growth of rotten bacteria and preserved the nutrients in the green feed.
2. Semi-dry silage (low moisture silage): the moisture content of the raw material is low, which makes the microorganism in the physiological dry state, the growth and reproduction is inhibited, the microbial fermentation in the feed is weak, and the nutrients are not decomposed, so as to achieve the purpose of preserving nutrients. This kind of silage expands the range of raw materials compared with general silage because of its low water content and loose requirements of other conditions.
3. Additive silage: some additives are added during silage to affect the fermentation of silage. Such as adding various soluble carbohydrates, inoculating lactic acid bacteria, adding enzyme preparation, etc., can promote lactic acid fermentation and quickly produce a large amount of lactic acid, so that pH can quickly meet the requirements (3.84.2). Or adding various acids and bacteriostatic agents can inhibit the growth of microorganisms that are not conducive to silage, such as decaying bacteria, for example, ryegrass silage can add formaldehyde / formic acid (3:1) mixture at the ratio of 10 g / kg. Or the addition of urea and ammonia can improve the nutrient content of silage. This can improve the silage effect and expand the range of silage raw materials.
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The Culture method of Fulutong
The sandy loam soil with loose and fertile and good drainage is the best for planting Fulutong. It is maintained in an environment of bright scattered light. Watering according to the dry condition of the soil, follow the principle of dry and thorough pouring, generally once every 1-2 days, and reduce the watering frequency in winter. In the growing period (4 ~
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What is soilless cultivation technique
Soilless cultivation technique refers to the cultivation method in which the substrate is used instead of natural soil or only when raising seedlings and irrigated with nutrient solution after planting. This technology can artificially create a good rhizosphere environment to replace the soil environment, including water-saving, fertilizer-saving, high-yield and clear.
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