Chinese yam cultivation method

Abstract

The invention discloses a Chinese yam cultivation method, which comprises the following steps of: (1) after rotatably ploughing soil of a ploughing layer of a farmland, digging out surface soil in a Chinese yam planting belt and above a ploughed bottom layer, and stacking the soil at the long side outside the planting belt; (2) digging a U-shaped oriented planting tank downwardly inclined towardsthe other long side from one long side along the direction vertical to the trend of the Chinese yam planting belt on the bared ploughed bottom layer, wherein the inclination angle is 10-20 DEG; (3) covering a 3-10 cm of loose soil layer on the dug U-shaped oriented planting tank, and back filling the soil of the ploughing layer of the farmland stacked at the long side of the planting belt to cover the soil on the loose soil layer in the planting belt, so that a backfill soil layer is formed; and (4) sowing Chinese yam seeds in the loose soil layer at the high-level end of the U-shaped oriented planting tank of the ploughed bottom layer. According to the invention, the U-shaped oriented planting tank is formed by digging from the ploughed bottom layer, a plastic groove or a sleeve is not required to pave, and each Chinese yam saves one plastic groove or sleeve, so that the Chinese yam cultivation cost is greatly saved; and furthermore, plastic materials are prevented from being used, thus the white pollution in the Chinese yam planting process is radically solved.

Description

technical field [0001] The invention relates to a yam cultivation method. Background technique [0002] Yam is a perennial twisting herbaceous plant of Dioscoreaceae. As a typical high-efficiency economic crop with both grain, vegetable and medicine, it is cultivated in most parts of the country. Yam is becoming more and more popular in domestic and foreign markets, and the market demand capacity is increasing year by year. At present, most of the main yam varieties in production have strong growth characteristics, and their tubers grow directly in the 0.8-2m underground soil layer. Their shape, size and integrity are the direct factors affecting their commodity value. At present, the main cultivation methods in my country's four major yam production areas are manual trenching cultivation or semi-mechanized subsoiling and ridge cultivation. The main harvesting methods are manual downward digging harvesting or sporadic mechanical-assisted subsoiling harvesting, which is labor...

AI Technical Summary

Problems solved by technology

However, the germination position of yam underground tubers is uncertain. Orientation grooves and casings are arranged in the field soil according to the distance between plants. The whole or partial contact between the yam and the soil, the absorption capacity of the root system is limited during the growth of the yam tuber, and there is a phenomenon of premature aging in the later stage; during the long-term use of the directional groove and the casing, the plastic material buried under the ground Orientation grooves or sleeves are easy to become brittle, and the excavation of yam requires hard tools and large force. The edge of the orientation groove made of plastic material is also easy to be broken during the excavation process, and the plastic fragments generated after breaking are not easy to remove. It is easy to remain in the soil and cause white pollution to the cultivated land

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