From late July to early August each year, the mature harvest period of Amomum villosum and the field management after fruit harvesting are the important measures for obtaining stable and high yields in successive years. The main management measures are now described.
The old seedlings in the plant population after the removal of the old seedlings Amomum elegans, the growth has declined, not only consume water, nutrients, but also susceptible to pests and diseases, affecting the growth of healthy plants in the group. Therefore, after fruit harvesting, the old and weak plants and diseased plants should be cut off immediately and burned in a concentrated manner. Only 40 to 50 healthy plants per square meter will be left, which will facilitate the light transmission within the Amomum hirsutum and reduce nutrient consumption and pests and diseases. Promotes robust growth of plants.
Adjust shade shading degree Amomum villosum is a kind of shade plant, according to its growth and development habits, only in the condition of 50% shading degree can normal growth and development. Shading too small or too large is not conducive to its growth and development. Therefore, after the fruit is collected each year, it is necessary to properly adjust the shading degree in the villosum land. If the shading is too large, shady trees should be shaded or cut down to reduce the shading. For the shading of small plots, fast-growing trees are planted to increase shading, and beneficial villi seed plants grow robustly.
After fertilizing the flowering fruit group of Amomum vulgare, it consumes a lot of nutrients, and in order to restore the population growth quickly and promote the growth of young bamboo shoots, it lays a solid foundation for the second year to obtain high yield. After harvesting fruit and cutting old seedlings, each acre Use manure, compost 3000kg, peanut 30kg (or bean cake 50kg), superphosphate 25kg. The above-mentioned fertilizers are uniformly spread into the villosum by being roasted together after being co-twined, and the soil is covered with 1/2 of the grape stems after application. This fertilization is called bamboo shoot fertilizer. From the end of February to the beginning of March in the second year, 1000 kg of human excrement and 5 kg of urea are applied per acre. This time, it is said to be a strong seedling fertilizer, and it promotes more long bamboo shoots, longer seedlings, and more amomum. Take the results and lay the foundation.
Diseases and Insect Pest Control Common pests and diseases include: (1) Bacterial blight frequently occurs in autumn and winter. Control methods: Adjust the shading degree in the Amomum regulus to be 50% or so; strengthen the watering or irrigation when the weather is dry; apply 70% thiophanate 1000 times liquid to prevent and cure in the initial stage of disease. (2) Leaf spot disease occurs easily after winter drought or frost. Control methods: After the fruit is removed, the diseased leaves of the diseased plants are concentrated and burned; P and K fertilizers are added, and appropriate water spray is applied; at the early stage of disease, 50% thiophanate WP is sprayed at 800 times to prevent and cure. (3) The borer damages the growth point of Amomum sorbifolia shoots and causes dead heart. Control methods: Found that the killed bamboo shoots were immediately excised and concentrated and burned. Adult oviposition period was sprayed with 40% dimethoate 1000 times solution or 90% trichlorfon 800 times solution.
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