Method for soil tillage of tobacco field in sloping farmland

Abstract

The invention discloses a method for soil tillage of a tobacco field in a sloping farmland. The method comprises the steps of deep loosening, soil preparation, application of base fertilizer and ridging. According to the method, a mode of matching deep loosening tillage of soil with locating layered application of the base fertilizer is adopted, a trinitarian vertical distribution structure is formed by combining the position of a ridge body, the position of a deep loosening belt and the position of a base fertilizer strip, and therefore the moisture content of the soil of the sloping farmlandcan be effectively increased; soil nutrients are activated, and meanwhile the moisture storage capacity of the soil of the tillage layer of the sloping farmland is increased, so that early-generationand quick-growth of flue-cured tobaccos are promoted, and the growth and development of the flue-cured tobaccos in the robust growth period are facilitated; by means of the method, the thickness of the soil tillage layer of the tobacco field of the sloping farmland is increased, the obvious effects of breaking obstacles at plough pans, reducing the unit weight of the soil and improving the porosity of the soil are achieved, and especially the soil improving effect of the subsurface stratum is achieved; the method has the obvious effects of optimizing the spatial distribution configuration offlue-cured tobacco roots, improving the vigor of the roots in the mature stage and the field culturing durability and quality of tobacco leaves, increasing the yield of the tobacco leaves and the like.

Description

technical field

[0001] The invention belongs to the technical field of flue-cured tobacco cultivation, and in particular relates to a method for cultivating soil in a tobacco field on a sloping farmland. Background technique

[0002] At present, my country's tobacco leaf production is mainly distributed in mountainous tobacco fields. Taking Yunnan Province, Guizhou Province and Sichuan Province, the largest major tobacco producing areas in the country, as an example, in 2016, the transplanted area of ​​mountain tobacco accounted for 72.9%, 89.0% and 94.4% of the flue-cured tobacco transplanted area in the province respectively. According to the topography of tobacco fields, mountain tobacco fields can be divided into terraces and slope farmland, of which slope farmland is the main body of mountain tobacco production. Due to the long-term use of a single soil tillage mode such as shallow plowing or rotary tillage in slope farmland tobacco fields in China, the soil plow layer...

Examples

Embodiment 1

[0032] The method for cultivating soil in tobacco field on slope farmland comprises the following steps:

[0033] (1) Subsoiling: Subsoiling the tobacco fields with a depth of 30cm and a spacing of 100cm between the subsoiling belts. While cultivating, 20kg / mu of crushed oil was brought in, and the depth of fertilization was 15cm;

[0034] (2) Soil preparation: 2 days before the tobacco seedlings are transplanted, the tobacco field is rotary plowed and finely raked until the soil is finely broken, and the terrain of the tobacco field is level along the contour line;

[0035] (3) Base fertilizer application: After the land preparation, apply 1000kg / mu of decomposed farmyard manure or 60kg / mu of commercial organic fertilizer along the deep loose belt to form a strip of base fertilizer;

[0036] (4) Ridging: After the basal fertilizer is applied, ridges are formed along the mountain contour with a distance of 100 cm and a height of 20 cm.

Embodiment 2

[0038] The method for cultivating soil in tobacco field on slope farmland comprises the following steps:

[0039] (1) Subsoiling: Subsoiling the tobacco fields with a tillage depth of 40cm and a spacing of 120cm between subsoiling belts. While cultivating, 40kg / mu of crushed oil was brought in, and the depth of fertilization was 20cm;

[0040] (2) Soil preparation: 2 to 3 days before the transplanting of tobacco seedlings, the tobacco field is rotary plowed and finely raked until the soil is finely broken, and the terrain of the tobacco field is level along the contour line;

[0041] (3) Base fertilizer application: After the land preparation, apply 1500kg / mu of decomposed farmyard manure or 100kg / mu of commercial organic fertilizer along the deep loose belt to form a strip of base fertilizer;

[0042] (4) Ridging: After the basal fertilizer is applied, ridges are formed along the mountain contour with a distance of 120 cm and a height of 30 cm.

Embodiment 3

[0044] The method for cultivating soil in tobacco field on slope farmland comprises the following steps:

[0045] (1) Subsoiling: Subsoiling the tobacco fields with a depth of 35cm and a spacing of 110cm between the subsoiling belts. While cultivating, 30kg / mu of crushed oil was brought in, and the depth of fertilization was 17.5cm;

[0046] (2) Soil preparation: 2 to 3 days before the transplanting of tobacco seedlings, the tobacco field is rotary plowed and finely raked until the soil is finely broken, and the terrain of the tobacco field is level along the contour line;

[0047] (3) Base fertilizer application: After the land preparation, apply 1250kg / mu of decomposed farmyard manure or 80kg / mu of commercial organic fertilizer along the deep loose belt to form a strip of base fertilizer;

[0048] (4) Ridging: After the base fertilizer is applied, ridges are formed along the mountain contour with a distance of 110 cm and a height of 25 cm.

technical field

[0001] The invention belongs to the technical field of flue-cured tobacco cultivation, and in particular relates to a method for cultivating soil in a tobacco field on a sloping farmland. Background technique

[0002] At present, my country's tobacco leaf production is mainly distributed in mountainous tobacco fields. Taking Yunnan Province, Guizhou Province and Sichuan Province, the largest major tobacco producing areas in the country, as an example, in 2016, the transplanted area of ​​mountain tobacco accounted for 72.9%, 89.0% and 94.4% of the flue-cured tobacco transplanted area in the province respectively. According to the topography of tobacco fields, mountain tobacco fields can be divided into terraces and slope farmland, of which slope farmland is the main body of mountain tobacco production. Due to the long-term use of a single soil tillage mode such as shallow plowing or rotary tillage in slope farmland tobacco fields in China, the soil plow layer...

Examples

Embodiment 1

[0032] The method for cultivating soil in tobacco field on slope farmland comprises the following steps:

[0033] (1) Subsoiling: Subsoiling the tobacco fields with a depth of 30cm and a spacing of 100cm between the subsoiling belts. While cultivating, 20kg / mu of crushed oil was brought in, and the depth of fertilization was 15cm;

[0034] (2) Soil preparation: 2 days before the tobacco seedlings are transplanted, the tobacco field is rotary plowed and finely raked until the soil is finely broken, and the terrain of the tobacco field is level along the contour line;

[0035] (3) Base fertilizer application: After the land preparation, apply 1000kg / mu of decomposed farmyard manure or 60kg / mu of commercial organic fertilizer along the deep loose belt to form a strip of base fertilizer;

[0036] (4) Ridging: After the basal fertilizer is applied, ridges are formed along the mountain contour with a distance of 100 cm and a height of 20 cm.

Embodiment 2

[0038] The method for cultivating soil in tobacco field on slope farmland comprises the following steps:

[0039] (1) Subsoiling: Subsoiling the tobacco fields with a tillage depth of 40cm and a spacing of 120cm between subsoiling belts. While cultivating, 40kg / mu of crushed oil was brought in, and the depth of fertilization was 20cm;

[0040] (2) Soil preparation: 2 to 3 days before the transplanting of tobacco seedlings, the tobacco field is rotary plowed and finely raked until the soil is finely broken, and the terrain of the tobacco field is level along the contour line;

[0041] (3) Base fertilizer application: After the land preparation, apply 1500kg / mu of decomposed farmyard manure or 100kg / mu of commercial organic fertilizer along the deep loose belt to form a strip of base fertilizer;

[0042] (4) Ridging: After the basal fertilizer is applied, ridges are formed along the mountain contour with a distance of 120 cm and a height of 30 cm.

Embodiment 3

[0044] The method for cultivating soil in tobacco field on slope farmland comprises the following steps:

[0045] (1) Subsoiling: Subsoiling the tobacco fields with a depth of 35cm and a spacing of 110cm between the subsoiling belts. While cultivating, 30kg / mu of crushed oil was brought in, and the depth of fertilization was 17.5cm;

[0046] (2) Soil preparation: 2 to 3 days before the transplanting of tobacco seedlings, the tobacco field is rotary plowed and finely raked until the soil is finely broken, and the terrain of the tobacco field is level along the contour line;

[0047] (3) Base fertilizer application: After the land preparation, apply 1250kg / mu of decomposed farmyard manure or 80kg / mu of commercial organic fertilizer along the deep loose belt to form a strip of base fertilizer;

[0048] (4) Ridging: After the base fertilizer is applied, ridges are formed along the mountain contour with a distance of 110 cm and a height of 25 cm.

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