Curcuma high-yield culture technique

Abstract

The invention discloses a high quality and yield culture technology of curcuma, which comprises the following steps: land selection and preparation, seed curcuma preparation, sowing, field management, harvesting and prevention and cure of plant diseases and insect pests. The technology of the invention is characterized in that: the loosening, fertile and sandy loamy soil with deep soil layers in which curcuma is not planted within one year is chosen for planting; prior to sowing, fossas are dug as per the depth of 0.08-0.12m, the suitable time for sowing is from June 20 to June 30, the planting density is 0.33-0.38m of row spacing, and the number of plants is 4600-6100 per mu; prior to sowing, the parent curcumas without plant diseases and insect pests are selected, curcuma is cut into small sections with 2-3 tubers, 4-6 sections are planted in each fossa, and the hurt and funked curcuma can not be taken as parent curcuma; during sowing, fossias are dug in field, and sowing is carried out according to the planting spacing of 0.33-0.38m. The bottom fertilizer is applied in the space between the parent curcumas, and covering soil is carried out. The technology can improve the yield of the medicinal materials of the produced curcumas and radix curcume longae by 15%-20%, increase the content of curcuminoids, the content of curcuma dione and the content of naphtha by 15%-20%, 17%-22% and 15%-18% respectively, and increase the economic benefit by 15%-20%.

Description

technical field [0001] The invention relates to a high-quality and high-yield cultivation technology of turmeric, which includes processes such as site selection, site preparation, seed selection, sowing, fertilization, fine field management, reasonable planting mode, and scientific pest control measures. Background technique [0002] Turmeric is a plant of the Zingiberaceae Curcuma longa L. It has a long history of cultivation. It has existed for thousands of years in Leshan City, Sichuan, and hundreds of years in Shuangliu and Chongzhou in Chengdu. Its rhizome is called turmeric on medicinal materials, and its root is called yellow silk turmeric on medicinal materials. Traditionally, it is better to have a golden section and a strong aroma. The 2005 edition of the Pharmacopoeia stipulates the content of dilute ethanol extract, volatile oil and curcumin as evaluation indicators. Turmeric has the functions of lowering blood fat, anti-tumor, anti-inflammation, anti-pathogeni...

AI Technical Summary

Problems solved by technology

At present, the growers in the main production areas of turmeric are still planting according to the traditional extensive mode, without scientific and technological guidance, and there are many irregularities in each production link. The main problems are as follows: (1) long-term asexual reproduction and The self-propagation and self-retention of the provenance lead to the aging of the ginger, the lack of quality standards for the ginger, and the phenomenon of continuous cropping is very common, resulting in poor stress resistance and disease resistance, and reduced yield

(2) The planting method is extensive and random, such as the span of sowing period is large, and the difference in planting density is significant, etc.

Li Longyun and others have done research on the cultivation experiments of turmeric, but the results of the research are inconsistent and contradictory, and it is impossible to form a stable cultivation technology route.

[0004] The existing turmeric cultivation techniques generally have the disadvantages of large amount of fertilizer, high production cost, high labor intensity, low income, and poor quality, and cannot guarantee the consistency of the innate advantages of each plant in the field, and cannot effectively control its output and quality

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