Vegetable Lists
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Physiological leaf roll disease of potato
(disease diagnosis) there are some similarities between physiological leaf roll and viral leaf roll symptoms. It is mainly characterized by the upward curl of leaf lobules. Usually the lower part of the plant or the leaves of the whole plant become brittle and roll up in the shape of a tube. Some only the edge of the leaf is slightly rolled up, and some are seriously curled into a spoon or barrel shape. When serious, the leaf becomes thicker, brittle and hard, and the color is darker and thicker, giving people the feeling of clustered and messy. The characteristic of physiological leaf curling is that the leaf curling performance of the damaged plants is relatively consistent. There are several causes of physiological leaf curling, such as excessive application of nitrogen fertilizer.
2019-01-16 -
The proportion of nitrogen, phosphorus and potassium applied to potatoes should be appropriate.
The demand for nitrogen, phosphorus and potassium in potato is equally important. In the process of yield formation, nitrogen supply is the basis to ensure the formation of sufficient green leaf area for photosynthesis; phosphorus supply is also indispensable for tuber formation and starch accumulation; on the basis of sufficient nitrogen and phosphorus, potassium supply is necessary for carbohydrate assimilation in the early stage, aboveground to underground tuber transportation and starch accumulation in the later stage. The field test showed that the absorption ratio of nitrogen, phosphorus and potassium in potato was about 1 ∶ 0.5 ∶ 2.5.
2019-01-16 -
Potato food processing-protein fortified potato chips
Process flow: potato → washing → peeling → finishing → dicing or strip → precooking → cooling → disulfide solution treatment → drying → puffing → adding flavor enhancer → packaging → finished product. Operation points: ① peeling: peeling with alkali solution or infrared radiation, the effect is better. 2 molding: according to the requirements of the product cut into small, strip or other shapes. Drying: The moisture content of raw materials should be strictly controlled, and when the moisture content of raw materials drops to 2.8 - 3.5%, drying can be stopped.④ Puffing: using
2019-01-16 -
Experimental study on Industrial Rapid Propagation of Potato Test-tube plantlets
For many years, due to the self-breeding and self-breeding of farmers, the yield of potato decreased year by year, the quality became worse, the shape of the product became worse and so on. It has been proved by scientists that virus infection and its accumulation in potato blocks are the main reasons for potato "degradation". In order to solve the problem of serious degradation and yield reduction of main potato varieties in our city, our institute took potato virus-free production as a key experimental subject, and carried out experimental research on the problems existing in virus-free production, so as to make use of resources and reduce production costs.
2019-01-16 -
Industrialization Technology of Potato in Vitro
This achievement includes potato test-tube potato virus-free, rapid propagation. A series of industrial techniques for inducing microtubers to be planted in field. According to the basic theory and operation technology of biological engineering, combining with the physiological mechanism of tuber formation, the axillary buds of potato tube seedlings and tube seedling segments were induced to form tube tubers suitable for plant cultivation under suitable medium and culture conditions, thus achieving commercial production. Through proper induction technique and improvement of culture container, the productivity of test tube alarm per unit culture area was increased by 3~5 times, and the highest productivity per square meter per year was 2
2019-01-16 -
Potato harvester developed successfully
On July 17, at the provincial potato mechanization planting and harvesting site observation meeting held in Xiazhai Village, Nianbo Town, Ledu County, Qinghai Province, it was seen that the potato harvester produced and developed by private enterprises in the province had been harvested by a single person in less than 40 minutes, which was equivalent to a whole day's work of 10 labourers, and the selling price of the machine was less than 1500 yuan. The business staff of Qinghai Agricultural and Animal Husbandry Machinery extension Station distributed and promoted 40 horses with an efficiency of 1.2 mu per hour to 20 grass-roots stations on the spot.
2019-01-16 -
Protein Feed Made from Potato Residue
Recently, researchers at Harbin Institute of Technology have made gratifying progress in the research of using waste potato residue to produce single-cell protein feed. The researchers not only screened out excellent strains for producing cell protein, but also designed and formulated a complete technological route for producing single-cell protein feed from potato residue. It is the first time to produce cell protein by liquid fermentation with potato residue and juice at home and abroad. China produces more than 70 million tons of potatoes per year, and more than 3.4 million tons of residual potato residue from processing starch. Potato residue is rich in fiber
2019-01-16 -
High-yield cultivation techniques of Potato with double ridges and High moisture content
The main characteristic of potato cultivation with double ridges and high soil moisture is the optimization and integration of improved varieties, good methods and good growth environment. Its core technology is "six changes", the first is to change the use of many, inferior and miscellaneous varieties as the leading excellent varieties, the second is to change the intercropping of corn and Chiang to simply growing potatoes, and the third is to change the planting method of "Man Tianxing" to double ridges and high soil moisture cultivation; fourth, to change the soil moisture in the first tillage ridge to two or three times to cultivate the soil; fifth, to change the partial application of nitrogen fertilizer to balanced fertilization (mainly phosphorus and potash fertilizer). Sixth, change the initial release management in the field to fine management (the focus is timely irrigation.
2019-01-16 -
Cultivation technique of Potato with double Film
Potato double film cultivation technology is a comprehensive cultivation technique with the combination of plastic film mulching and arch shed, which mainly solves the freezing injury of potato in early spring in northern China, promotes potato sowing and listing early, and increases farmers' income. Potato double film cultivation is generally listed 30 days earlier than plastic film potato, the yield per mu can reach 2500 kg, the income per mu is more than 2000 yuan, and the economic benefit is very significant. The main cultivation techniques are as follows: first, the cultivation with double film should be 50-60 meters long from east to west and 6 meters wide from north to south.
2019-01-16 -
Cultivation techniques of Potato after Flood
The varieties with good shape, high yield, rapid expansion of potato pieces and high temperature tolerance at seedling stage, such as Kexin No. 4, should be selected. Selecting seed potato and sprouting seed potato should choose the spring potato harvested in the same year, and strictly pick out the diseased potato, rotten potato, damaged potato and poorly formed potato pieces, and the small whole potato of 20 to 40 grams is the best. The whole potato should be sown in autumn, the seed potato is about 25g / mu and the dosage is 150kg / mu. Use gibberellin 1 gram of whole potato, 120-180 jin of water, soak the seeds for 15-20 minutes in mid-late July and put them in
2019-01-16 -
Processing technology of potato crisp candy slices
1. Select potato slices, choose fresh, pest-free, 50-100g potato, wash the epidermis soil, and then release. Keep stirring and peeling with sticks in 20% of the lye. After all peeling, pick up and rinse again and drain. Slices can be cut into prismatic or triangular slices with a thickness of 1-2mm. After cutting, Mfeng is immersed in clean water to avoid discoloration of starch on the surface. 2. Boil and dry the thin slices soaked in water, pick them up and boil them in boiling water. When boiling to 8 ripeness, turn off the heat and dry immediately. You must be in charge in this process.
2019-01-16 -
The method of accelerating germination of Pepper Seeds
The method of accelerating germination of Pepper Seeds
2019-01-16 -
Causes and Control of Secondary growth of Potato
Nilek County has long and narrow terrain and cool climate, which is suitable for the growth of cold crops. Potato has always been the dominant local crop. After years of in-depth investigation and research by technicians, the causes of secondary growth of potato and the corresponding solutions were found out. 1. Potato secondary growth in early August 2003, 1.3 hectares of potatoes sown in the five villages of Nilke Town in late April, the tubers have expanded as big as eggs, the sprouting eyes of new potatoes sprout and grow small potatoes the size of thumbs, while the new potatoes grow old.
2019-01-16 -
Cultivation techniques of Potato in Winter
1. Preparation before sowing: in mid-February, prepare agricultural materials such as seed potatoes, pesticides, chemical fertilizers and agricultural films. Put the seed potatoes in the room at about 12 degrees Celsius to sprout. 2. Cut a good seed potato: make sure that each seed potato has at least 1 color 2 bud eyes and weighs about 30 grams. The chopped seed potato pieces were mixed with medicine. The formula of the powder is to add 250 grams of 70% methyl topiramate wettable powder with 50 kg of fossil powder. 3. Timely early sowing: generally sowing from late January to early February, with a row spacing of 90
2019-01-16 -
Value-added processing Technology of Potato starch waste liquid
The waste liquid of potato starch production is rich in nutrients, which is a pity to be discarded and pollutes the environment. People try to process the potato starch waste liquid and use it in the food industry, but it is held back because the treated starch juice has a peculiar smell of potato. In order to make effective use of potato juice, a new process using glucose invertase has been developed in recent years, which not only effectively removes the unpleasant taste in the juice, but also contains rich nutrients such as sugars, amino acids, organic acids and minerals.
2019-01-16 -
Plastic film ridging technology of potato
After the seed potatoes are sown, use a flat shovel to flatten the ridge surface, which is conducive to weeding and covering. 667 square meters with herbicide Du Er 80 ml of water 40 kg spray on the ridge surface, herbicide can not be sprayed at one time, should leave a small part, such as film after spraying ridge. To prevent long grass, 667 square meters need 90 cm wide microfilm 4 kg. When covering the film, be sure to seal both sides and the ridge head with wet soil tightly, and seal a horizontal line with wet soil every 6~7 meters on the ridge surface to prevent strong wind from blowing up the film and affecting the heat preservation effect. After seed potato emergence
2019-01-16 -
Symptoms and Prevention of low temperature chilling injury in Potato
During plant growth or during stem storage, if the air temperature or soil temperature is too low (above freezing point), the plant will produce chilling injury. The degree of chilling injury varies with the temperature. 1. The symptom of the leaf is in the seedling stage, and the leaf wilts and collapses rapidly after the plant is damaged by freezing. When the qi warms up, the affected area becomes flooded and browns after death. But if the plant is only damaged by scourge. the above symptoms will not occur. Chilling injury occurs in the seedling stage in early spring. The symptoms appeared at the top of the seedlings and appeared yellowish to light brown at the base of the young leaves. When
2019-01-16 -
Comprehensive Processing Technology of Potato
Potato is one of the main agricultural products in China, which can be planted all over the country and has great production potential. Potato in addition to fresh food, starch processing, cooking Chinese and Western fast food, but also can be a variety of deep processing. 1. Potato jam Wash the potatoes first, remove the rotten and budding parts, then peel them off, steam them in a steamer, and air them out of the cage. Rub the potatoes evenly with a sieve and set aside. White granulated sugar, water and sour water (i.e. sour water for vinegar room) are mixed with a small amount of thin rice (porridge) and bran is placed in
2019-01-16 -
Pre-storage treatment and several storage methods of potato
1. The pretreatment of potato pieces before storage can inhibit potato germination and ensure the storage effect. The main results are as follows: (1) after drying potato pieces after harvest, they can be dried slightly in the field to distribute part of the water for storage and transportation. Generally, drying for 4 hours can significantly reduce the incidence of storage. If the drying time is too long, the potato will lose water and wilt, which is not conducive to storage. (2) the potato harvested in summer should be stored in a cool and ventilated room, cellar or shade shed after harvest. For convenience
2019-01-16 -
Storage and rough processing Technology of Potato
1. Storage technology. 1. Burial. Choose a high-lying and dry place and dig a trench with a width of 0.8-1.5 meters and a depth of 0.9 meters. The potatoes pre-stored in the cold place will be stored in the ditch when they are about to freeze, scattered potato pieces, 40-50 cm thick, put a handful of corn stalks every 1 meter to make a ventilator, 0.5 meters above the ground, cover the grass curtain, cover the soil when the temperature drops, the thickness is not lower than the permafrost, and the top of the ditch should be raised. 2. The method of ventilation storage. The potato pile is 1.3-1.7 meters high. 2 meters wide and placed vertically in the potato pile every 2-3 meters
2019-01-16