Method for promoting rapid maturity of mud flat virgin soil using green manuring rotation mode

Abstract

The invention relates to a method for promoting rapid maturity of mud flat virgin soil using a green manuring rotation mode. Aimed at problems that JIANGSU coastal new beach reclamation virgin soil islack of organic matters and easily returns salt, and ordinary crops are difficult to grow, the invention provides a method for promoting rapid maturity of mud flat virgin soil using a sesbania (spring sowing) and ryegrass (autumn sowing) rotation mode. The method comprises: dividing coastal mud flat virgin soil into two parcels of A and B, spring sowing and autumn sowing time of the A parcel in afirst year respectively being the first ten days of May and the last ten days of October, spring sowing and autumn sowing time in the second year respectively being the last ten days of June and thelast ten days of October, spring sowing and autumn sowing time of the B parcel in the first year respectively being the last ten days of June and the last ten days of October, spring sowing and autumnsowing time in the second year respectively being the first ten days of May and the last ten days of October, turning and pressing time of four season green manure for plantation of the A parcel respectively being a harvesting period, a harvesting period, a full-bloom period, and a heading period, turning and pressing time of four season green manure for plantation of the B parcel respectively being a full-bloom period, a heading period, a harvesting period, and a harvesting period. The method can effectively improve mud flat virgin soil maturity progress. After the green manuring rotation mode applies for two years, soil organic matter contents of 0-20 cm deep soil layers of the A and B parcels are improved by 2.56-2.84 g / kg, and salinity content is reduced by 2.67-3.28 g / kg.

Description

technical field [0001] The invention relates to a method for promoting rapid maturation of mud flat soil in a green manure rotation mode, and belongs to the technical field of plant cultivation. Background technique [0002] my country's existing tidal flat area is more than 3.5 million hectares, while the area of ​​coastal tidal flats in Jiangsu is about 648,000 hectares, and it is silted eastward at a rate of 1,333 hectares every year. This vast tidal flat resource is the most potential and most valuable in the eastern region of my country. land reserve resources. Therefore, the rapid improvement, development and utilization of coastal tidal habitat plays an irreplaceable role in supplementing the shortage of cultivated land resources in my country and ensuring national food security. At present, due to the lack of organic matter and the high groundwater level in most of the newly reclamated habitats along the tidal flats, the soil returns to salinity seriously, and it is ...

AI Technical Summary

Problems solved by technology

At present, due to the lack of organic matter and the high groundwater level in most of the newly reclamated habitats along the tidal flats, the soil returns to salinity seriously, and it is difficult for ordinary crops to grow. The process of maturation mode is relatively slow, virtually slowing down the pace of soil improvement and utilization in tidal flat habitats

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