This standardized production technical specification applies to the main potato production areas. According to this implementation, in normal years, the hectare yield can reach 30 tons.
Second, the selection of species and seed processing
1, species selection
Based on the use of virus-free seed potatoes, according to the use of suitable varieties.
The consumption of new potato production can be selected from Kexin 4, Kexin 12, Kexin 13, Dongnong 303, and Early Dabai; the processing of starch, vermicelli, etc. can be used Kexin 12, Eugene (88-5), Huangmazi, etc. Processing chips, potato chips, etc. can use Atlantic, Shabati and so on. Seed potato selection of young potatoes, ageing potatoes, can not choose old potatoes, cracked potatoes, malformed potatoes, diseased potatoes.
2. Seed processing
(1) Germination
40 to 45 days before sowing the pit, into the indoor near the sun or outdoor leeward tile 2-3 layers, the temperature is maintained at 15 degrees Celsius -20 degrees Celsius, at night to pay attention to cold, 3-5 days flip once, uniform light. Elimination of disease and rotten potatoes during the germination process.
(2) Cut the branch
Mechanical sowing can cut large branches, each weighing 35-45 grams; artificial sowing can be cut into small branches, each weighing 30-35 grams. Each plant maintains 1-2 buds. During the process of cutting, disease and rotten potatoes were eliminated and the knife was sterilized with 5% of the children.
(3) Seed dressing
Corn borer, commonly known as borers, is one of the most important pests on corn in the city. The annual occurrence area is more than 3 million acres. If it is not controlled in time, the output loss can be more than 15%.
Trichogramma is an egg parasitoid. After many years of practice, it has been proved that Trichogramma has good control effect on corn borer, labor-saving and labor-saving, no harm to humans and animals, no pollution to ecological environment, no damage to natural enemies, and no residual poison to products. Such advantages are an important biological and practical technology for carrying out green prevention and control of pests and diseases to ensure stable production and increased production of corn.
Corn bran has undergone three generations a year in the city. It adheres to the principle of “one pressure, one control, and two defenses.†It focuses on the release of Trichogramma to prevent and control the second generation of corn borer. It also combines well with the four, ie, wintering and field control. Combining; prevention and control of the leaf stage and the combination of the prevention of the panicle stage; combination of chemical control and biological control; prevention and control of corn combined with other host crops.
The perennial corn quail egg is in the mid-June period, and the second-generation corn mash is in late July to early August. The third generation of corn quail is in late August. The specific bee-keeping time of each district should be determined according to local conditions. Local monitoring points should be reasonably set up, one for every 3-5 million mu, and systematic monitoring should be conducted from May 1 to the end of September. Regular, fixed-point and fixed-plant surveys shall be conducted to investigate the progress of pupa and feathering of corn borers, and forecasting in combination with meteorological conditions. , When the rate of previous generation collapse reached 10%, pushing back 10 days to 12 days, when the cumulative egg quantity of 100 corn plants in the field was 1 block or 2 blocks, it was the first time that the bee was suitable, and it was pushed back 5 days later. For the second bee period.
The number and method of bee release
Each bee was given 10,000-20,000 heads and each bee was given 10,000 heads. Set one release point per acre: Take the first 12 m from the ground for the first release of the bee line, then every 25 meters for a bee line; the first point of each bee line is 13 meters from the ground, and every other time 26 meters set a little. Set two release points per acre: 8 m from the ground is the first place where the bee is placed, then every 20 m is placed a row of bees, the first place where each bee is placed is 8 m from the land, then every 20 Rice is a bee. Three release points per acre are set: 7 m from the ground is the first place of bee row, followed by a row of bees every 16 m. The first bee of every bee line is 7 m from the land and every 16 Rice is a bee.
At the point of placing the bees, select the middle leaf of a corn plant and use a toothpick to place the paper bag on the main vein of the back of the leaf.
Purchasing Trichogramma products must strictly implement the "Triumphus biocontrol industry standards for agricultural use (NY/T 1166-2006)" quality standards, sampling quality of Trichogramma must reach the second-level indicators.
Precautions
(a) Accurately master the progress of the development of the eggs.
(2) The Trichogramma product is not resistant to storage. Please do not mix it with pesticides and fertilizers to prevent direct sunlight and avoid direct washing of rainwater.
(c) In the event of light rain, bees can continue to put bees, in the event of heavy rain, the bees will be placed in a cool dark place, immediately after the rain, bees.
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