Rice-and-vegetable rotation ecological sunlight greenhouse and rice-and-vegetable rotation method

Abstract

The invention discloses a rice-and-vegetable rotation ecological sunlight greenhouse and a rice-and-vegetable rotation method. The sunlight greenhouse includes a front hothouse, a rear cold canopy, a ceiling, an animal house, a biogas digester and a temporary storage pool; the front hothouse is connected with the rear cold canopy through a soft wall, and the land utilization rate is improved; the biogas digester is located below the animal house, dung and urine enter the biogas digester through an inlet, after fermentation, produced biogas fluid and biogas residues are totally a quick-acting fertilizer and used for replacing a chemical fertilizer applied in rice and vegetable planting processes, and the biogas fluid and the biogas residues also have the effects of sterilization and deinsectization; the temporary storage pool is used for rice seedling raising, used as habitats of fish, shrimps, crabs and the like, and also can be used for storing agricultural production tools. After rice is harvested, the sunlight greenhouse is formed, vegetable planting is conducted, through planting and breeding combination, paddy-upland rotation, comprehensive utilization of the biogas fluid and the biogas residues and other measures, the agricultural non-point source pollution is reduced, continuous cropping diseases are avoided, and the sunlight greenhouse and the rotation method have the advantages of increasing the soil cropping index, keeping soil health, reducing the agricultural non-point source pollution, increasing the economic income of farmers and ensuring the food security.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to an ecological solar greenhouse suitable for paddy fields and a crop rotation method thereof. Background technique [0002] As we all know, rice is an important food crop in my country. In 2012, my country's rice planting area was 30.137 million hectares, and the rice output was 204.236 million tons, accounting for 34.64% of the country's total grain output. Therefore, the production and supply capacity of rice directly affects my country's food security. [0003] According to the data from the National Bureau of Statistics, from 1997 to 2003, the sown area of ​​rice in my country decreased by an average of 9.4%. Among them, the change from double-cropping rice to single-cropping rice was the main reason for the decrease in the sown area. From 2004 to 2010, the trend of "double-cropping rice to single-cropping" was obvious. , the average annual decrease in the prop...

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