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Potato waste turned into treasure, can be processed into protein feed
Recently, researchers at Harbin Institute of Technology have made encouraging progress in research on using discarded potato waste to produce single-cell protein feed. The researchers not only screened out an excellent combination of bacterial strains for producing cell protein, but also designed and formulated a complete process route for producing single-cell protein feed from potato waste. The use of potato waste with juice for liquid fermentation to produce cell protein is the first proposal and application of its kind both domestically and internationally. China produces more than 70 million tons of potatoes annually, and more than 3.4 million tons of potato waste remain after starch processing.
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Potato pulp waste turned into treasure, can be processed into protein feed
Recently, researchers at Harbin Institute of Technology have made encouraging progress in research on using discarded potato pulp to produce single-cell protein feed. The researchers not only screened out an excellent strain combination for producing cell protein, but also designed and formulated a complete process route for producing single-cell protein feed from potato pulp. Adding juice to the pulp and using liquid fermentation to produce cell protein is the first proposal and application of its kind both in China and abroad. China produces more than 70 million tons of potatoes annually, and starch processing leaves behind more than 3.4 million tons of potato pulp. The pulp is rich in fiber
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Growing potatoes in idle winter fields yields good returns
1. Choose good field plots and sow at the right time. Choose double-cropping rice areas below 100 m altitude, with little or no frost in winter and an average annual temperature above 19°C, requiring paddy fields with deep topsoil, loose texture, medium-to-upper fertility, and convenient drainage and irrigation; at the same time, arrange the sowing period reasonably. After the double late rice is harvested in mid-November, immediately plow deep and sun-bleach the soil, sow in early to mid-December, and harvest from late March to early April the following year. 2. Prepare the land finely and make deep furrows and high ridges. Potatoes grown in paddy fields in winter are most afraid of waterlogging, so fine land preparation should be advocated, with deep plowing and high-ridge cultivation, and planting
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How to Grow Black Potatoes for High Returns? A Detailed Guide to Cultivation Techniques
I. Characteristics and Traits The seedlings are upright, the plant clump is lush, the plant type is tall, and the growth vigor is strong. Plant height is 60 cm, stem thickness is 1.37 cm, the stem is dark purple, and the cross-section is triangular. The main stem is well developed, with fewer branches. Leaf color is dark green, the petiole is purple, the corolla is purple, and the petals are dark purple. The tuber body is long oval, the skin is smooth, and it is black-purple, glossy black and shiny, and rich in luster. The tuber flesh is dark purple and tightly dense. The appearance color is highly attractive. Starch content is 13%-15%, and the taste is fragrant and mealy with good quality. The eyes are shallow, and the number of eyes is medium. Tuber set is concentrated, with 6-8 tubers per plant,
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Master the Three Earlies and Three Skills for Spring Potato Planting to Achieve High Returns
Three Earlies: Choose early-maturing varieties. Practice has proven that selecting high-yielding, high-quality, virus-free potato varieties with a growth period within 70 days (from emergence to harvest) is the key to achieving high, stable yields and quality in spring-planted potatoes. Currently ideal varieties include Holland No. 7, Holland No. 15, Zhengshu No. 6, etc. Start sprouting early. Using a sunny cold frame before planting to pre-sprout can make potatoes emerge early and uniformly, with complete and strong seedlings, promoting early plant development and early tuber formation - this is an important yield-increasing measure. The key points of sprouting technique are: before planting
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Deep processing of sweet potatoes brings good returns, giving farmers a new way to increase their income
I. Crispy rice crust 1. Raw material preparation. Select 10 parts of fresh sweet potatoes with a high dry matter content, cut off the roots and stems, and wash them with water. Separately select 1 part of highly sticky glutinous rice, soak it in water and wash it for 30 minutes, then drain off the water. Next, put the sweet potatoes and glutinous rice into separate pots, add water, and steam them thoroughly over high heat for later use. Then put the mashed cooked sweet potatoes and glutinous rice, while still hot, into a bucket, and quickly pound them with a thick stick into a paste. At the same time add a small amount of white sugar water to increase sweetness and flavor. 2. Spreading the paste. Take a clean cloth sheet and spread it flat on a sun-drying mat,
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Sweet potatoes turn into feed, saving costs and increasing efficiency at the same time
1. Tuberous roots: each unit of fresh sweet potato is equivalent to 0.3 corn units. It is an excellent succulent feed and also a very good energy feed. All kinds of livestock like to eat it, and it is most suitable for feeding meat pigs. The method is to boil it, mix 15-20 kg of cooked sweet potato with 1 kg of concentrated feed (crude protein >= 34%), stir evenly and feed to meat pigs. The effect is the same as a complete compound feed, but the feed cost is much lower than compound feed. Feeding sweet potato alone or feeding it raw has a poor effect. Tuberous roots that are rotten or have black spot disease should be buried deep in a pit, and it is strictly forbidden for humans and livestock to eat them
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Sweet potato starch is in high demand in the market, and timely processing yields high returns.
Sweet potato starch occupies an increasingly important position in people's daily diet. Potato-based chemical products have now become the main raw materials for chemical products such as lactic acid, citric acid, disposable tableware and degradable agricultural mulch film. It is understood that the current price of refined white potato starch has risen by nearly 10% compared with last year, and the reason for this price trend is undoubtedly the supply-demand gap for sweet potato starch. Relevant data show that at present, the demand for sweet potato starch in the domestic market alone is more than 1 million tons, while the production volume is far less than this number.
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Key Technical Points for No-Till Planting with Rice Straw Return
No-till technology with rice straw return refers to a simple planting method in which, after the rice harvest, the rice straw is spread evenly over the field, no plowing is done, and only chemical weed control is carried out before wheat can be sown. This technology was successfully developed in May 2000 through dedicated experimental research by the Chengdu Second Institute of Agricultural Sciences. The no-till wheat planting technology with rice straw return fully combines the advantages of straw return, no-till, and broadcasting, and scientifically assembles them into a complete new technology package, which has not yet been formally reported at home or abroad. Experimental research shows that this comprehensive supporting technology not only increases
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How to scientifically manage film-mulched garlic after it turns green
The weather is gradually warming up, and film-mulched garlic has now begun to turn green. After the seedlings turn green, adventitious roots begin to grow at the lower part, accumulating nutrients for the differentiation of garlic scapes and bulbs, which is the key period for achieving high quality and high yield of garlic. The management measures for this period are: clean the dust off the plastic film. Due to irrigation before winter, dust or silt will accumulate on the garlic film, affecting its light transmission, so it should be removed as early as possible to enhance light and raise soil temperature. Repair damaged plastic film in time. Film that has been torn, scratched, or lifted by the wind should be repaired at any time, and garlic sprouts curled under the film should be hooked out as soon as possible
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