Vegetable Lists
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Storage characteristics of Potato
There is an obvious physiological dormancy period after potato harvest. It usually lasts for 2 to 4 months, which varies from variety to breed. Generally speaking, the dormancy period of late-maturing varieties is short, while that of early-maturing varieties is long. The length of dormancy period varies with maturity. The dormancy period of immature potato tubers harvested in the middle growth stage is longer than that of the same size but in the mature period. The storage temperature also affects the length of dormancy period, and the dormancy period of potato stored at suitable low temperature is long, especially the low temperature at the beginning of storage is very beneficial to prolong the dormancy period. one
2019-01-16 -
Storage and fresh-keeping Technology of Potato
The edible part of potato (potato) is tuber, which contains a lot of carbohydrates and rich mineral elements. The potato is resistant to storage and transportation and can be supplied year-round. It is a kind of raw material for fresh vegetables and processed products to adjust the weak market and popular. Storage and characteristics of potatoes generally have a dormancy period of 2-4 months after harvest, and the length of dormancy period varies from variety to variety. The dormancy period of late-maturing varieties is short, while that of early-maturing varieties is long. Different maturity also has an effect on the length of dormancy, and the rest of immature potato stems.
2019-01-16 -
Early Control of main Underground damage of Potato
First, the main pests 1. Mole cricket is also called Lala Oratosquilla, country Dog son. The adults of mole cricket (fully winged) and nymphs (unwinged) are harmful to potatoes. It uses mouthparts and front claws (front feet) to tear the underground stems or roots of potatoes into disordered filaments, wilting or dying the aboveground parts, and sometimes biting buds so that the buds can not grow, resulting in lack of seedlings. It digs tunnels in the soil, separates the young roots from the soil, breathes air, causes water loss, affects the growth of seedlings, and even dies. It bites tubers in autumn to make holes or make them
2019-01-16 -
Key points of Bud planting techniques of Potato
In order to prevent potato degradation, prevent ring rot and solve the problem of insufficient supply of improved varieties, we carried out the bud planting experiment of potato variety Longshu 3 from 2000 to 2002. The results showed that the disease in the field was light, the yield was 3600 kg / mu, the tuber was large and uniform, and the commodity rate was high. Now the cultivation techniques are introduced as follows: (1) Seedling 1. Select land to make bed. The land with flat terrain, loose soil and convenient water source is selected as the nursery ground. The seedling bed is 1.2 meters wide and long according to the planting area.
2019-01-16 -
Causes and Prevention of Potato degradation
(1) the reason for potato degradation is that potatoes are planted in spring in hot summer areas in the south. After a year or several years, the yield gradually decreases, or even there is no harvest at all. This phenomenon is called potato degradation. The direct external cause of potato degradation is virus damage. Mosaic virus, mosaic virus, common mosaic virus and hammer tuber virus are common in southern China. These viruses infect plants and cause degradation through vectors such as mechanical friction, aphids, leafhoppers or soil nematodes. High temperature is the indirect external cause of potato degradation.
2019-01-16 -
Processing Technology of Potato fudge
The high-grade fudge made of potato as the main raw material has good taste and color, moderate softness, sweetness and delicacy, and is very popular with consumers. And it has the characteristics of simple equipment, easy production, high profit and so on. 5 kg of potato paste, 3 kg of sugar, 1.3 kg of edible gelatin, 2.5 kg of water, 10 g of sodium benzoate, the right amount of essence, 2.4 g of sodium sulfite, the right amount of edible pigment, citric acid adjusted according to ph 1. Choose potatoes without mildew, spoilage, freezing and blackening.
2019-01-16 -
Scientific Storage Technology of Potato
How to scientifically store fresh potatoes for seed, edible and processing is the key link to extend potato industry chain. Through scientific storage, it can not only adjust market supply and demand, but also increase value by 20%~30%. The present storage situation, existing problems and scientific storage methods of potato in Weichang County were discussed through investigation and production practice. Although paddock farmers have the habit of storing potatoes and have accumulated rich storage experience, there are also many problems.
2019-01-16 -
Prevention and control techniques of black heart and hollow potato
Black heart and hollow potato are physiological diseases of potato. The specific etiology, symptoms and control methods are as follows: 1. Black heart disease of potato tuber 1. Symptoms of the disease appear in the center of potato tubers with irregular patterns from blue to black, and in severe cases, more than half or the whole tuber will turn black. two。 The disease is caused by anoxia in potato tubers. In potato storage, when the storage cellar is tightly sealed or the potato pile is too large, the potato cultivation soil is hardened and impervious, which will occur due to the lack of internal oxygen supply.
2019-01-16 -
Black heart disease of potato
(disease diagnosis) it is mainly caused by the damage of potato storage. In the central part of the tuber, it forms an irregular pattern from black to blue-black, and develops into a black heart from point to tuber. With the serious development, the whole potato pieces can be discolored. The boundary of the victimization of the black heart is obvious. In the later stage, the black heart tissue gradually hardens. At room temperature, the black center can soften and turn black. Different tubers have very different responses to causing black hearts. (etiology) this is a physiological disease caused by respiratory asphyxia due to insufficient oxygen supply to the internal tissue of the tuber.
2019-01-16 -
Potato ring rot
The disease is a bacterial vascular bundle disease, which is characterized by dwarf and wilting of aboveground stems and leaves and annular rot of underground tubers along the vascular bundle ring. The early and severe disease leads to the death of seedlings; most of the diseased plants grow slowly, dwarf and thin, few branches, small leaves, and wrinkle but not spread; if the disease is late and light, the plant height, leaves and branches grow normally, but the top leaves become smaller. In the later stage, the first or second branches or the whole plant wilted. The symptoms are most obvious after flowering, the lower leaves wilt, droop and die at first, and the upper leaves curl inward from the edge, showing dehydration, turning grayish green, and then
2019-01-16 -
Ring Rot of Potato and its Control
Ring rot is caused by Corynebacterium ring rot (Corynebacteriumsepedonicum), which can occur in stems and leaves or in tubers. It can continue to cause damage during storage and cause tuber rot in severe cases. In recent years, with the popularization and application of virus-free seed potato, the incidence of ring rot decreased significantly. 1. Symptomatic ring rot is also a vascular bundle disease. Aboveground symptoms generally appear after flowering. The initial symptoms appear in the lower leaves of the plant, showing chlorosis and mottling between the veins.
2019-01-16 -
Techniques of Potato Ring Rot
It is a common disease with an area of about 10% all the year round. Potato ring rot pathogen is mainly transmitted by seed potato, it can not survive in the soil, but can be carried on tools, machinery, packing boxes and bags. Solution: using disease-free seed potato is the most economical and effective control method; sowing whole potato; cutting pieces of seed potato should be strictly sterilized; before sowing disease-free potato pieces, it is necessary to eliminate autogenous plants in the field. and use baskets, boxes and other tools for disinfection; use new bags.
2019-01-16 -
Mechanized soil cultivation Technology of Potato
At present, it is in the middle tillage stage of potato planting. In order to guide the production of agricultural machinery, the matters needing attention and fault maintenance of potato mechanization are introduced as follows: first, the adjustment method (take 3ZF-4 as an example) 1. Line spacing adjustment. Line spacing adjustment of type 4 potato ploughing and fertilizing machine: based on the center line of the front crossbeam of the cultivator, loosen the fixing screws on the main beam of the single connection of the two sides of the fertilizing machine, move the single unit of the fertilizing machine, and measure the distance between the two adjacent shovels to the desired ruler.
2019-01-16 -
New Progress in Potato Genome Project
According to the International Potato Genome sequencing Association (thePotatoGenomeSequencingConsortium,PGSC), the Dutch government will spend 3 million euros (about $3.6 million) to sequence the first potato chromosome and complete the potato genome (840Mb) sequencing in 2010 in cooperation with other national scientific organizations, in order to make a contribution to the future global food supply. PGSC
2019-01-16 -
Potato Ji Chengshu No. 1
Main characters: erect plant type, medium number of branches, plant height 50~60cm, stem green, strong growth potential: green leaves, medium hairs, large compound leaves. The leaf margin is spreading, the lateral leaflets are 4 pairs, the arrangement is medium, the inflorescence peduncle is green, the peduncle node is colored, the Corolla is light purple, the petal tip is colorless, the Corolla is large, no double petal, purplish red, the tip is pointed, light purple, medium hairy, etc.; the tuber has a long dormant period and is resistant to storage. Late ripening, birth days about 120 days; excellent steaming quality; processing quality: dry matter 20.2%, starch 12.2-16.
2019-01-16 -
Two items of Potato processing
1. The production formula of jam: potato 4kg, sugar 4kg, citric acid 10g, carmine pigment and edible essence in small amounts, sodium benzoate 2Mel 3g. The potatoes are first washed, steamed, peeled and opened to cool, and then beaten into mud with a beater. Then pour the sugar into the sandwich pot, add the right amount of water to boil and dissolve, pour in the mashed potatoes and stir, so that the mashed potatoes and sugar water mix, continue to heat and keep stirring to prevent the pot from paste. When the slurry temperature reaches 107 ℃-110 ℃, the ph is adjusted with citric acid water
2019-01-16 -
potato intercropping model
In order to improve the utilization rate of land and increase farmers 'income, several intercropping models with potato as the main planting variety are introduced for farmers' friends and grassroots leaders to refer to in agricultural structure adjustment. 1. Potato cotton potato germination in late January, late February sowing, the use of plastic film mulching cultivation. Zhengyin No. 5 and Zhengyin No. 7 virus-free potato bred by Zhengzhou Fruit Research Institute of Chinese Academy of Agricultural Sciences were selected as varieties, and Biaoza A1 with big and disease resistance was suitable for cotton varieties. Potatoes are planted in double rows with high ridges and 8 wide rows
2019-01-16 -
Production of White Potato vermicelli
1. Main equipment. Potato washing machine, grinding machine, grinding separator, sanding machine, filter, Euryale machine, flour mixer, noodle machine. 2. Technological process. Fresh potato → washing potato → pulping → purification and decolorization treatment → vermicelli forming → cooling → drying → packaging → finished product 3, operation points ⑴ material selection: choose potatoes with high starch content and no decay. Generally every 5-6 kilograms of fresh potatoes can be processed 1 kilogram of refined white starch or vermicelli. ⑵ washing potato: pour the fresh potato directly into the hopper of the potato washing machine, start the machine to supply water, and wash, transport and automatically through the machine.
2019-01-16 -
Potato hollow heart disease
(disease diagnosis) occurs more frequently in larger potato lumps. At the beginning, the central tissue of potato blocks was waterlogged or transparent, and brown necrotic spots appeared in some centers. In the later stage, a cavity was formed near the center of the tuber. Most of the cavities are lens-shaped or star-shaped, and their edges are mostly angular; some cracks appear in the interior of the tuber; and some hollow shapes are spherical or irregular. The inner wall of the cavity is white, light brown to straw yellow, forming an incomplete cork layer. Usually, the cavity expands as the tuber grows. Sometimes mold can be seen in the hollow, but rarely.
2019-01-16 -
Occurrence and control of potato tuber moth
Potato tuber moth is also called potato borer, tobacco leaf moth, and the masses are called skin worm, embroidery worm, potato maggot and so on. First, the harmful symptoms are mainly caused by larval decay, mostly from the bud eyes and broken skin of potato pieces, and the larvae hatched on the plant will spread with the wind and feed on the leaves through the leaves. After the injured leaves die, the larvae transfer to other leaves to do harm. Second, the occurrence regularity of potato tuber moth occurs for several generations a year, overwintering in various insect states on the remnant leaves of sweet potatoes and various hosts in the field. Cheng
2019-01-16