A kind of large-scale cultivation method of yam seed

Abstract

The invention discloses a large-scale culture method of yam seedlings, and belongs to an artificial associated intervention technology in the technical field of crop cultivation. The method adopts the core technology of yam bulbil and corn intercropping and bulbil and cultured yam seedling graded management. Through adopting the yam bulbil and corn intercropping mode, the corn lodging-resistance capability is enhanced, meanwhile, high-resistance yam seedlings are cultured in a large scale, the acre yield can reach 9000 to 12000 plants, the cost is basically not increased, through being compared with that of conventional corn production, 3 to 4 laborers are increased for seeding, management and caring, 6 to 8 laborers are increased for harvesting, the labor quality and work intensity requirements only equal to those of potato planting, only medium work is required for the intensity, the bulbil culture cost is only about 1 / 3 of that of the traditional culture mode, the competitiveness is greatly improved, and the popularization and the application are easy.

Description

technical field [0001] The patent of the invention is a large-scale cultivation method of yam seeds, which belongs to the artificial accompanying intervention technology in the field of crop cultivation technology. The core technology is the intercropping of yam seeds and corn, and the hierarchical management of yam seeds and bred yam seeds. Background technique [0002] Yam, commonly referred to as long yam, is a traditional tuber vegetable in China and many countries. [0003] According to morphological characteristics, horticulture divides yam germplasm resources into four categories: long yam (Dioscorea polystachya), brown yam (Dioscorea persimilis), yam (Dioscorea fordii) and ginseng potato (Dioscorea alata). Chinese yam has great differences in leaf and underground tuber traits, which are easy to distinguish. [0004] Long yam, scientific name Dioscorea polystachya, also known as Huai yam (Dioscorea polystachyaTurcz.), yam, yam, field potato, Buddha's palm potato, etc...

AI Technical Summary

Problems solved by technology

The way and method of improvement is currently mainly to choose lodging-resistant varieties, and to increase resistance by fertilizing and spraying pesticides. Physical support methods are rare due to cost reasons. Even the traditional method of cultivating soil for reinforcement is too high due to high labor costs. It is no longer used, and the method of companion planting is rarely tried

[0016] Most of the reasons for corn lodging are: 1. Unreasonable planting density; 2. Improper fertilization methods: the first situation is that when applying base fertilizer, phosphorus and potassium fertilizers are not used or the amount of phosphorus and potassium fertilizers is too small, the amount of nitrogen fertilizers is obviously too much, and the amount of potassium fertilizers is too little. Cause nutritional imbalance in corn, corn grows too fast, the plant is too tall, and the stalks are slender and prone to lodging

The second situation is that when the fertilizer is topdressed during the growth of corn, the fertilizer is too close to the base of the rhizome, or it is directly sprinkled on the root system, which will burn the base of the root, reduce the number of supporting roots (aerial roots), and cause the root to support 3. Improper field management measures: Reasonable fertilization and watering cannot be applied during the growth of corn; timely control of diseases and insect pests cannot be prevented in time, which reduces the resistance of corn; 4. When spraying post-emergence herbicides on corn, any Spraying paraquat or gramless corn fields will also reduce the aerial roots of corn, thus increasing the probability of corn lodging