Method to promote rapid increase of organic matters in tidal flat virgin soil by Sesbania cannabina mowing mode

Abstract

The invention relates to a method to promote rapid increase of organic matters in tidal flat virgin soil by Sesbania cannabina mowing mode. In order to solve the problems that costal newly-enclosed tidal flat soil of Jiangsu lacks organic matters, salts are easily returned, and it is difficult for common crops to grow, the invention provides the method to promote rapid increase of organic mattersin tidal flat virgin soil by Sesbania cannabina mowing mode. The method includes: applying 1000 kg / 667 m<2> of organic fertilizer made by fermenting cow dung, chicken dung, rice chaff and the like totidal flat virgin soil, deeply tilling by machinery, applying suitable calcium superphosphate, and performing mechanical rotary tillage; building small ridges 10-15 cm in height around a field, and burying drain pipes communicated with outside ditches; ditching to sow seeds in mid-June, mowing Sesbania cannabina once at intervals of about 45 days, with stubbles about 55 cm in height left, spreading the mowed parts evenly among the rows, and topdressing with nitrogen fertilizer in time; when mowed stubbles grow to the full-bloom stage of Sesbania cannabina, and crushing and rolling in time.

Description

technical field [0001] The invention relates to a method for promoting the rapid improvement of soil organic matter in tidal flat habitats by mowing mode of greenleaf, and belongs to the technical field of plant cultivation. Background technique [0002] Tianjing, also known as waterlogged bean, alkali green, etc., is native to tropical and subtropical regions. It has strong adaptability, salt tolerance, waterlogging tolerance, rapid growth, wide adaptability, and strong stress resistance. It is an excellent summer green manure crop. , but also a pioneer plant for the improvement of saline-alkali land. [0003] my country's existing tidal flat area is more than 3.5 million hectares, while Jiangsu coastal tidal flat area is about 687,000 hectares, and it still silts eastward at a speed of 50-200 meters every year. This vast tidal flat resource is the most potential and the most Valuable land reserve resource. Therefore, the rapid improvement, development and utilization of c...

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 new reclamation land along the coastal tidal flats, the soil returns to salinity seriously, and it is difficult for ordinary crops to grow. Most of them are planted with salt-tolerant green manures such as vinaigrette, which are directly crushed and pressed at the full flowering stage. Promote soil maturation, but the vegetative growth ability of Tianjing has not reached the maximum level, and the soil organic matter has not reached the maximum level, which has virtually slowed down the pace of soil improvement and utilization in tidal flats

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