Coastal heavy saline-alkaline land sweet potato high-yield cultivation method

A cultivation method and technology in saline-alkali land are applied in the field of high-yield sweet potato cultivation in coastal heavily saline-alkali land, and can solve the problems of difficulty in seedling cultivation, poor product quality, and stunted growth in sweet potato cultivation, so as to increase soil fertility and microbial community, reduce evaporation, and eliminate surface aggregation. Effect

Inactive Publication Date: 2013-06-12
QINGDAO AGRI UNIV
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Problems solved by technology

In heavy saline-alkali coastal areas, a series of technical measures such as terraced fields, flood irrigation, additional application of organic fertilizers, ridges, film mulching, cuttings, and drip irrigation under plastic films were used to solve the difficulties of maintaining seedlings, stunting, poor product quality, and yield of sweet potatoes in coastal heavy saline-alkali land. low-level problem, to achieve the unity of high-efficiency utilization of heavy saline-alkali coastal land and high-yield, high-quality, and high-efficiency sweet potatoes

Method used

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  • Coastal heavy saline-alkaline land sweet potato high-yield cultivation method
  • Coastal heavy saline-alkaline land sweet potato high-yield cultivation method

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Experimental program
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Effect test

Embodiment 1

[0021] (a) Ditching terrace fields: Dig a salt drainage ditch 2 every 15 m in the flat coastal heavy saline-alkali land, with a width of 3 m, so that the relative height difference between the top of terrace field 1 and the bottom of the ditch reaches 1.5 m.

[0022] (b) Flood irrigation: dam 3 around the surface of the terrace, and use fresh water 4 to irrigate terrace 1 with a water depth of 150 mm;

[0023] (c) Increase the application of organic fertilizer: when the surface of the terrace 1 is flooded with water and naturally infiltrates, spread the decomposed farmyard manure on the surface of the terrace 1;

[0024] (d) Ridging: Rotary tillage and ridging after fertilization, the height of the ridge is 10 cm, and the width of the ridge is 58 cm;

[0025] (e) Membrane covering: at the same time of ridge formation, plastic film 7 is used to cover the surface of ridge 6, and drip irrigation tape 8 is laid under the film;

[0026] (f) Cutting: On April 20, 2011, 9 roots of s...

Embodiment 2

[0033] (a) Ditching terrace fields: excavate a salt drainage ditch 2 every 20 m in the flat coastal heavy saline-alkali land, the ditch width is 5 m, so that the relative height difference between the top of terrace field 1 and the bottom of the ditch reaches 2 m;

[0034] (b) Flood irrigation: dam 3 around the surface of the terrace, and use fresh water 4 to irrigate terrace 1 with an irrigation amount of 200 mm;

[0035] (c) Increase the application of organic fertilizer: when the surface of the terrace 1 is flooded with water and naturally infiltrates, spread the decomposed farmyard manure on the surface of the terrace 1;

[0036] (d) Ridge: Rotary tillage after fertilization, ridge 6, ridge height 12 cm, ridge width 60 cm;

[0037] (e) Membrane covering: at the same time of ridge formation, plastic film 7 is used to cover the surface of ridge 6, and drip irrigation tape 8 is laid under the film;

[0038] (f) Cutting: On April 25, 2012, 9 roots of sweet potato seedlings we...

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Abstract

The invention relates to the technical field of agricultural production, in particular to a coastal heavy saline-alkaline land sweet potato high-yield cultivation method. For coastal heavy saline-alkaline lands, a series of technical means such as furrowing to form raised fields, basin irrigation, organic fertilizer application, ridging, film mulching, cutting and under-film drop irrigation are adopted to realize high yield of sweet potatoes in the coastal heavy saline-alkaline lands. Underground water level can be decreased through furrowing to form the raised fields; saline matters in soil can be washed through basin irrigation; soil fertility and microbial floras can be increased through application of organic fertilizers; saline matters on ridges can be further washed, evaporation is reduced and saline matter surface accumulation can be eliminated through ridging, film mulching and under-film drop irrigation; and damages to films can be reduced, evaporation can be reduced and saline matter surface accumulation can be eliminated through cutting. Therefore, the high yield of the sweet potatoes in the coastal heavy saline-alkaline lands is realized.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a high-yield cultivation method for sweet potatoes in coastal heavy saline-alkali land. Background technique [0002] There are about 1.5 billion mu of various saline soils in my country, accounting for 26.3% of the world's saline soil area. The coastal and inland areas have a large area of ​​saline-alkali land, and most of the saline-alkali land has been waiting for development. In particular, heavy saline-alkali coastal areas have high groundwater levels, high soil salinity, soil compaction, low soil fertility, and poor air permeability, making it difficult to produce various economic crops. sweet potato[ Ipomoea batatas (L.) Lam.] is an annual or perennial vine herb of the genus Sweetpotato in the Convolvulaceae family. It is the fourth largest food crop in my country after rice, wheat and corn. Around 100 million tons. Sweet potato has become an important e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/02A01B77/00
Inventor 王建林李拴怀杨新民
Owner QINGDAO AGRI UNIV
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