Bletilla striata and purple yam intercropping method

Abstract

The invention relates to a bletilla striata and purple yam intercropping method. The method includes steps of land selection and preparation, seed selection and plantation, field management, harvesting and the like, wherein field management includes steps of framework building and seedling leading, intertillage and weeding, fertilizer and water management, pest and disease prevention and control and the like, and bletilla striata is harvested every three years while purple yams are harvested yearly. The purple yarms are planted on two slopes of a bletilla striata planting ridge, vines of the purple yams shade bletilla striata in a growth process, water and fertility preservation is realized, an excellent original ecological growth environment is provided for growth of bletilla striata, purchasing of shading nets is avoided, cultivation cost is reduced, and yield of bletilla striata and the purple yams is increased. Compared with a traditional planting method, the bletilla striata and purple yam intercropping method has advantages that a bletilla striata planting period is shortened by 1-2 years, bletilla striata casn be harvested in the third year, harvested bletilla striata and yam tubers are large in size and pure in color, and the acre yield is 2-3.5 times of that of traditional tuber cultivation.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to an interplanting method of bletilla striata and purple jade yam. Background technique [0002] Ziyu yam is also called purple ginseng, also known as Shuzhen and long taro. It is eaten with its fat tuber or cylindrical root. The tuber contains 1.5% protein, 14.4% carbohydrate, and contains various vitamins and choline. The nutritional value is extremely high, and purple yam has strong adaptability. No matter in the valley with an altitude of 6 or 7 meters, or the high mountain of 1900 meters, it grows well and shows strong adaptability. [0003] Bletilla striata (Bletilla striata) belongs to Orchidaceae, Bletilla striata, is a kind of ground orchid, widely distributed in Guizhou, Sichuan, Hunan, Hubei, Anhui, Jiangsu, Henan, Yunnan, Guangxi, Zhejiang and other provinces, also known as Gangen , Baige, Ruolan. Perennial herb, pseudobulb tuberous, white, plump...

AI Technical Summary

Problems solved by technology

[0005] Although the bletilla striata has been artificially planted in various places, the output has been unable to increase and the benefit is low, which has led to the slow development of the cultivation scale of the bletilla striata. The main reasons are: first, there is no mature production technology for the bletilla striata. Strong light, it is easy to fall or die under direct sunlight or drought conditions, so it mostly grows in a cool place covered by tall plants; it is shade-tolerant, fertilizer-loving, and cold-resistant, and it grows well in places rich in fertilizer and water, with large rhizomes

At present, most of the planting techniques used cannot meet the original ecological environment required for the good growth of Bletilla striata. The exposed planting is exposed to direct sunlight, high temperature, early fall of seedlings, shortened growth period, small growth of rhizomes, unable to achieve high yield, and the cost of planting in sheds is high , reducing economic benefits; second, farmers scattered planting, small scale, drug farmers can not grasp the requirements and control methods of many factors such as growth environment, temperature, light, water, soil, fertilizer, etc. during the growth and development of Bletilla striata, and cannot meet the requirements of high-yield and high-efficiency The technical requirements for cultivation make it difficult to pass the planting technology, and the yield is low, which restricts the production of Bletilla striata; the third is that most of the artificial planting of Bletilla striata adopts rhizome propagation at present, and the seed cost is high; the fourth is that the single variety of Bletilla striata is planted, black spot disease, root-knot nematode The hazards of diseases and insect pests are very serious, resulting in serious damage of diseases and insect pests; fifth, Bletilla striata is mostly harvested after falling seedlings, because the corm particles are small, it is difficult to harvest, and the labor cost is high. , Water and fertilizer management, processing and other labor costs are high, and the benefits of planting outweigh the losses, resulting in low direct economic benefits

[0006] At present, the interplanting technology of purple jade yam and bletilla striata is still immature, and there is no method suitable for large-scale production, and there is no fundamental solution to the short growth period of bletilla striata, the short growth period of rhizomes, the low yield, the difficulty of harvesting, and the high labor cost. , serious pest damage and other key technologies

The reasonable collocation of the two types of medicinal materials, the coordination of management and the complementarity of fertilizer, water and sunlight requirements have not been achieved.