The author believes that as long as we do a good job in several major aspects of production management, will greatly increase the planting efficiency of yam. The management of yam cultivation should focus on the application of basal fertilizer, soil loosening, treatment of yam species, timely dressing, disease prevention, and measures to promote the growth of roots and other links.
First, the soil is loose and the tubers are easy to inflate.
Loose soil is essential for root elongation and enlargement. Planting ditch depth to reach about 1 meter, sandy loam loose air, warming fast, good seedlings early, is conducive to tuber elongation; sticky soil chilled, poor ventilation, is not conducive to root elongation, but good fertility There is a stamina. Irrespective of soil quality, cattle and manure or comminuted crop stalks (wheat stalks, rice husks) can be added to the area of ​​over 1000 kilograms per mu. This will not only increase soil organic matter but also improve soil permeability. The large stones, bricks, and gravel in the soil should be removed to prevent damage to the roots. It is advisable to dig trenches ahead of the time before they are frozen to help weather the soil and form a good soil structure. The sooner the irrigation should be, the better it is to improve the ground temperature as soon as possible.
Second, basal fertilizer to use enough, film should be covered.
The chicken and duck dung manure per hectare per mus, or the manure of pig manure is over 3,000 kilograms, the potassium sulfate compound fertilizer is over 50 kilograms, and the diammonium phosphate is about 50 kilograms. Conditionally add 100 kg of biological bacterial fertilizer and bean cake fertilizer, and one kilogram each of boron, zinc, iron and iron fertilizer, and fully mix with the soil and fill in the planting ditch. After filling with water, planting can only be performed when the temperature rises to 15 degrees. After sowing, it should be covered with plastic film to warm it. The film should be removed at the end of May in order to facilitate the lowering of the roots.
Third, seedlings must be treated to prevent disease and pest control.
After the sowing of yam, it is easy to infect the root rot and blight. The simplest method is to treat the yam seedlings. You can dip the yam seeds with fludioxonil (Changshi) 1,000 times or Ami-Sida 1500 times, and follow the ditch. Spray after spraying to ensure that the yam seedlings will not die.
In the spring, there are more underground pests, mainly crickets, golden worms, cockroaches, and ground tigers. An effective method is to spray phoxim 1500 times along the ditch. Or the use of high concentration of chalcazine (thiabendazole) spray ditch to control the underground pests, the effect is better and the safety is higher.
Fourth, the middle of the stem leaf, three good attention.
Yam to the middle of growth, rainy days, high humidity, prone to cause anthrax, brown spot, spear leaf spot disease, brown spoilage disease, virus disease. You can use Amisite 1500 times plus 600 times the noble copper spray, spaced once every 15 days, spray a total of 2-3 times. Brownish spoilage can be rooted with the above methods, especially after heavy rains. Viral diseases focus on prevention and control of whitefly and aphids. Pay attention to topdressing chemical fertilizers, and apply 2-3 times in the middle growth stage. Apply 25 kg of potassium sulfate compound fertilizer to each acre. Pay attention to the timely removal of yam beans and reduce nutrient consumption.
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