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Method for implementing rice-fish integrated culture on coastal mudflats in Jiangsu

A tidal flat and farmland technology, applied in fish farming, rice cultivation, climate change adaptation, etc., can solve the problems of lack of large-scale promotion and application support, high soil salinity in tidal flats, and incomplete construction of electric power and water conservancy engineering facilities.

Inactive Publication Date: 2019-06-28
江苏省渔业技术推广中心
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Problems solved by technology

[0003] The main reasons for the low comprehensive utilization rate of coastal tidal flat agriculture in Jiangsu are: 1) high salinity in tidal flat soil; 2) huge cost of tidal flat development, long development and construction period, and slow investment returns; 3) incomplete construction of power and water conservancy facilities, ditches Construction and renovation failed to make full use of regional freshwater resources; 4) Lack of first-hand agricultural basic scientific research data, especially the lack of water in moderately saline soil (3‰~5‰ salinity, high sand content in soil, easy to harden soil) ) experimental data on efficient planting of crops (varieties), lack of support for the large-scale promotion and application of the comprehensive planting and breeding model of "salt-tolerant crops + aquaculture"

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  • Method for implementing rice-fish integrated culture on coastal mudflats in Jiangsu

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preparation example Construction

[0060] The preparation method of the fermented chicken manure is as follows: according to the weight ratio of 55-65 parts of wet chicken manure, 25-35 parts of block quicklime, 8-12 parts of straw powder, mixing, compacting and accumulating for 7 days to 10 days of fermentation.

[0061] 2.3) Rice sowing and management

[0062] In early May, soak the field with 5cm-10cm of water in the rice planting area (that is, the water level is 5cm-10cm higher than the field surface); the water source is fresh water, and the salinity of the water reaches 1.2‰-1.8‰ when passing through the ditches along the way to the tidal flat planting area .

[0063] From May 20th to May 25th, the rice seeds were sowed by the machine sowing method, every 667m 2 Sow 4.0kg to 4.5kg of dry rice seeds. After sowing, keep the paddy field soil moist, and gradually increase the water level as the seedlings grow. The highest water level on the paddy field surface is ≤15cm;

[0064] In late July, after rice bo...

Embodiment 1

[0090]1# Field Block: From April 6th to April 30th, the field engineering construction of the paddy field will be carried out, mainly including the following aspects: 1) Excavation of a "彐" shaped fish ditch along the inner side of the paddy field ridge 2.5m, the ditch depth is 160cm, and the length is 400m. The width is 12m~15m, the slope ratio is 1:2.6, the area of ​​the fish ditch accounts for about 10% of the total field area, and the side walls of the fish ditch are protected by 10-mesh polyethylene mesh with a width of 1.8m to prevent collapse; 2) Excavation of the fish ditch is removed The soil is used to widen, heighten and reinforce the ridge. When strengthening the ridge, lay a layer of 1.8m wide 10-mesh polyethylene mesh for every 35cm of soil heightening. The length of the single-layer mesh is calculated according to the length of the ridge, and then the Raise and compact the field mud to prevent the ridge from collapsing and water leakage; the ridge is 60cm to 80cm...

Embodiment 2

[0101] In the 2# field, except that the rice species is selected as "Salt stem 15", the rice field construction, rice planting and management, aquatic product species (local crucian carp, vannamei) stocking and growth management, and harvesting measures are all the same as in Example 1.

[0102] Penaeus vannamei was captured in ground cages, and a total of 2,287.4kg of vannamei with a size of 66 tails / kg was captured. The price at the pond mouth was 40 yuan / kg, and the output value was 91,496 yuan; According to the granulation rate, the production of high-quality rice is 33027.8kg, the price of rice is 7.0 yuan / kg, and the output value is 231194.6 yuan; from December 28th to 31st, 3164.6kg of commercial crucian carp was caught by pulling nets and dry ponds, with an average size of 121.4g / tail. The price is 18 yuan / kg, and the output value is 56962.8 yuan; after conversion, white shrimp, local crucian carp, and rice 2 The output value is 379653.4 yuan.

[0103] Input cost: 300...

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Abstract

The invention discloses a method for implementing rice-fish integrated culture on coastal mudflats in Jiangsu. The method comprises 1) field engineering construction, 2) rice planting and management,3) stocking and culture management of local crucian carp and Pacific white shrimp, 4) rice harvesting and 5) commercial fish and shrimp fishing. The method for implementing rice-fish integrated culture on the coastal mudflats in Jiangsu makes full use of upper and lower space and production efficiency of water in fish ditches, and meanwhile, produced aquatic products, rice and rice straw can accelerate reduction of salt content of saline-alkali mudflats, so that positive ecological, economic and social effects on promoting resource utilization of the coastal mudflats, increasing income for peasants, enhancing agricultural efficiency and the like can be achieved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a method for carrying out rice-fishing comprehensive planting and breeding in coastal tidal flat farmland in Jiangsu. Background technique [0002] The total area of ​​tidal flats in the coastal areas of Jiangsu reaches 687,000 hm 2 , accounting for about 1 / 4 of the total area of ​​tidal flats in China, of which the supratidal zone is 295,000 hm 2 , and still at 1267hm per year 2 The speed is long. In the past 10 years, focusing on the overall development and utilization of coastal tidal flats in Jiangsu, a total area of ​​38,336hm has been approved for agricultural use 2 , most of the reclamation seas for agriculture have not been effectively developed and utilized. The purpose of agricultural sea use planning is mainly to increase land reserve resources, improve the scientific allocation level of tidal flat resources, and comprehensively utilize silted tidal...

Claims

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Application Information

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IPC IPC(8): A01G22/22A01K61/10A01K61/59
CPCY02A40/81
Inventor 张朝晖郭闯陈焕根姚国兴石太林黄春贵张岩杨思雨
Owner 江苏省渔业技术推广中心
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