Provided is a cultivation method for increasing yield of ratooning rice and reducing Cd content and use thereof, belonging to the technical field of agricultural planting. The cultivation method for increasing yield of ratooning rice and reducing Cd content comprises sowing seeds of ratooning rice in middle and late March of a year, conducting transplantation in middle April of the year for growth in a Cd-contaminated rice field, performing water and fertilizer management of a first season rice, harvesting the first season rice at a position between 1st and 2nd last nodes thereof and performing water and fertilizer management of a second season rice. The cultivation method provided by the present disclosure may significantly increase the yield of ratooning rice, significantly reduce the content of Cd in brown rice of ratooning rice season, and is of great significance for the safe utilization of contaminated farmland.

A method for micro-ridge mixed-sowing cultivation of rice includes: S1: draining away water at the maturity stage of the preceding crop until reaching a state allowing a harvester to operate; S2: harvesting the preceding crop, leaving the stubble, smashing the stalks of the preceding crop, and then spreading the smashed stalks on the stubble to form a rhizosphere layer for rice growth; S3: trenching the field to form ecological trenches; S4: flattening the standing stubble and the smashed stalks on the seedbed surface to form an underlying surface, molding seed-fertilizer-soil compounds into a ridge shape and fall the seed-fertilizer-soil compounds on the underlying surface to form ecological ridges, wherein a plurality of ecological ridges are formed between adjacent ecological trenches, and the seed-fertilizer-soil compounds are obtained by thoroughly mixing rice seeds, chemical fertilizers and soil at a mass ratio of 6 to 14:50 to 70:6,000 to 10,000.

A method for micro-ridge mixed-sowing cultivation of rice includes: S1: draining away water at the maturity stage of the preceding crop until reaching a state allowing a harvester to operate; S2: harvesting the preceding crop, leaving the stubble, smashing the stalks of the preceding crop, and then spreading the smashed stalks on the stubble to form a rhizosphere layer for rice growth; S3: trenching the field to form ecological trenches; S4: flattening the standing stubble and the smashed stalks on the seedbed surface to form an underlying surface, molding seed-fertilizer-soil compounds into a ridge shape and fall the seed-fertilizer-soil compounds on the underlying surface to form ecological ridges, wherein a plurality of ecological ridges are formed between adjacent ecological trenches, and the seed-fertilizer-soil compounds are obtained by thoroughly mixing rice seeds, chemical fertilizers and soil at a mass ratio of 6 to 14:50 to 70:6,000 to 10,000.

The invention relates to the field of plant improvement, in particular of the improvement of yield for plants, by using a transgene containing the BETL9 promoter driving expression of the MRP1 protein.

The provided is a construction method for a flood storage area ecological wetland oriented to multi-target collaborative promotion. The construction method includes: I. carrying out ecological wetland construction on a flood storage area by taking promotion of agricultural production as a goal; II. according to a water purification target of the flood storage area of the ecological wetland and a current pollution condition in the flood storage area, constructing the ecological wetland based on improvement of the water purification target when the flood storage area does not reach the water purification target at present; and III, in order to improve the biodiversity, carrying out the following ecological wetland construction on the flood storage area. In the method, agricultural production, water purification and biodiversity improvement of the flood storage area are comprehensively considered. The method is the most effective way for multi-target collaborative promotion of the flood storage area.

The provided is a construction method for a flood storage area ecological wetland oriented to multi-target collaborative promotion. The construction method includes: I. carrying out ecological wetland construction on a flood storage area by taking promotion of agricultural production as a goal; II. according to a water purification target of the flood storage area of the ecological wetland and a current pollution condition in the flood storage area, constructing the ecological wetland based on improvement of the water purification target when the flood storage area does not reach the water purification target at present; and III, in order to improve the biodiversity, carrying out the following ecological wetland construction on the flood storage area. In the method, agricultural production, water purification and biodiversity improvement of the flood storage area are comprehensively considered. The method is the most effective way for multi-target collaborative promotion of the flood storage area.

The invention relates to the field of plant improvement, in particular of the improvement of yield for plants, by using a transgene containing the BETL9 promoter driving expression of the MRP1 protein.

A method is provided for evaluating plant roots, comprising (i) growing a plant in a substantially transparent container charged with a particulate, non-transparent growing medium; and (ii) evaluating plant roots through the transparent container by digital imaging. An apparatus for evaluating plant roots in a high throughput manner is also provided.

The present invention discloses a method for improving cadmium tolerance in rice and reducing cadmium content in rice grains, and belongs to the technical field of microbial applications. In the present invention, an endophytic fungi Falciphora oryzae FO-R20 with a deposit number of CCTCC M 2021505 is subjected to seedling co-raising with rice in a fungal fertilizer form, the endophytic fungi Falciphora oryzae FO-R20 is colonized in the root tissue of rice, and then the rice seedlings are transplanted to a field until harvest. Therefore, the tolerance of rice to cadmium is improved, the content of heavy metal cadmium in the grains of rice is reduced by 12.61%. The FO-R20 has great value by popularization and application in guaranteeing plant health and improving crop quality.

The present invention discloses a method for improving cadmium tolerance in rice and reducing cadmium content in rice grains, and belongs to the technical field of microbial applications. In the present invention, an endophytic fungi Falciphora oryzae FO-R20 with a deposit number of CCTCC M 2021505 is subjected to seedling co-raising with rice in a fungal fertilizer form, the endophytic fungi Falciphora oryzae FO-R20 is colonized in the root tissue of rice, and then the rice seedlings are transplanted to a field until harvest. Therefore, the tolerance of rice to cadmium is improved, the content of heavy metal cadmium in the grains of rice is reduced by 12.61%. The FO-R20 has great value by popularization and application in guaranteeing plant health and improving crop quality.