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

An organic matter and tidal flat technology, applied in the field of plant cultivation, can solve the problems such as the vegetative growth ability of Asparagus has not been maximized, the soil organic matter has not been maximized, and the pace of soil improvement and utilization of tidal flat habitats has been slowed down. To achieve the effect of increasing soil organic matter content, increasing the rate of decomposition, and improving the efficiency of nitrogen fixation

CN109644604AInactive Publication Date: 2019-04-19JIANGSU COASTAL AREA AGRI SCI RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-04-19
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

Examples

Embodiment Construction

[0020] Apply 1000kg / 667m of organic fertilizer fermented from cow dung, chicken manure, rice bran, etc. 2 , Mechanical plowing, the depth of 40 ~ 50cm. Application of superphosphate on plowed plots, P 2 o 5 The dosage is 4.5kg / 667m 2 , mechanical rotary tillage, the depth is 10-20cm. Build small ridges around the fields, with a height of 10-15cm, which can accumulate a certain amount of rainwater in the rainy season to form a water layer and improve the nitrogen fixation efficiency of the root nodules of the field. Drainage when the water volume is large; ditch sowing, seeding rate 3kg / 667m 2 , the sowing method is drill sowing, the row spacing is 40-50cm, the sowing depth is 3-5cm, and the sowing time is in mid-June; when the vinaigrette grows for about 45 days and the height is about 120cm, mow once, and the stubble height is about 55cm. Spread evenly among the rows; topdress nitrogen fertilizer immediately after cutting, and the N application rate is 10kg / 667m 2 ; The...