Substrate culture method for reducing continuous cropping obstacle of rehmannia

Abstract

The invention relates to a substrate culture method for reducing continuous cropping obstacle of rehmannia, which comprises steps including 1sterilizing soil with 0.5% ethanol before planting; 2 adopting mixture of turf, vermiculite and pearlite as the substrate, spraying water containing fungicide before using, enabling water content of the substrate to reach 60%, maintaining for one week; 3 removing bottoms of nutrient earthen bowls or bottoms of nutrient bags, adding treated substrate into the nutrient earthen bowls or the nutrient bags, then placing and planting rehmannia into the nutrient earthen bowls or the nutrient bags, sowing the rehmannia on treated rectangular pieces of land in a field according to 25cm line spacing, 20cm row spacing, the holes are 8-10cm in depth, placing thenutrient earthen bowls or the nutrient bags planted with the rehmannia into the land, watering sufficiently, covering coil for about 0.5-1cm to facilitate moisturizing; and 4 performing field management according to normal planting during growth period. The substrate culture method for reducing continuous cropping obstacle of rehmannia effectively resolves the continuous planting obstacle problems that after one year of rehmannia planting, when the rehmannia is replanted, disease is serious, plants die in mass, yield is reduced sharply, and the rehmannia must be planted on other fields.

Description

technical field [0001] The invention relates to a planting method for alleviating obstacles to continuous cropping of crops, in particular to a matrix cultivation method for reducing obstacles to rehmannia rhizome, which belongs to the intensive agricultural production technology and is specially used to overcome and eliminate obstacles to rehmannia rhizome. Background technique [0002] Rehmannia glutinosa ( Rehmannia glutinosa Libosch.) is a perennial herb of the family Scrophulariaceae. It is used as medicine with dried tubers. It is mainly produced in the ancient "Huaiqing Mansion" (now Jiaozuo, Henan). "Dahuai medicine" is one of the famous authentic medicinal materials, and has been listed as the top grade of medicinal materials in the pharmacopoeias of all dynasties. Rehmannia glutinosa is mild in nature, tonic but not dry. In clinical application, fresh rehmannia, raw rehmannia and rehmannia glutinosa are used as medicine respectively. It has multiple functions suc...

AI Technical Summary

Problems solved by technology

At present, there is no good solution to the continuous cropping obstacles of Rehmannia glutinosa in production. Most researches, such as adding complex microbial agents, applying adsorbents to reduce allelochemicals, and other soil treatment methods are still in the theoretical stage, and it is difficult to apply them in production.

Due to the seriousness and particularity of the continuous cropping obstacles of Rehmannia glutinosa, many techniques to eliminate the continuous cropping obstacles of other crops cannot achieve the expected results when applied to the production of Rehmannia glutinosa, and the continuous cropping obstacles have seriously affected the yield and quality of Rehmannia glutinosa in authentic areas.

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