A cultivation method for promoting the root development of flue-cured tobacco in the early stage of growth

The technology of a pre-growth and cultivation method is applied in the cultivation field of promoting root system development in the pre-growth stage of flue-cured tobacco. It can solve problems such as affecting the root system development of tobacco plants, poor leaf opening of tobacco plants, and excessive growth of tobacco plants, so as to improve the ability of water storage and moisture conservation. The effect of stabilizing water content and promoting root growth

Inactive Publication Date: 2020-12-08
INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past 10 years, tobacco leaf production managers in the middle and upper reaches of the Yangtze River have had considerable controversy over the water content of the ridge body during film mulching. At present, "full moisture" film mulching (field water holding capacity of ridge body ≥ 80%) is generally practiced in tobacco cultivation. , it is easy to lead to "leggy" of the tobacco plants in the cluster stage, which seriously affects the root development of the tobacco plants. In the long period of prosperity, the absorption of nutrients and water by the roots of the tobacco plants cannot meet the growth needs, resulting in a small number of leaves, and the identity of the middle and lower leaves. Thin, the upper leaves are thicker, and the leaves of the whole tobacco plant are poorly opened

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  • A cultivation method for promoting the root development of flue-cured tobacco in the early stage of growth

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The implementation site is located in Luochuanyan Village, Jiaoyuan Town, Xuan'en County, Enshi Prefecture, Hubei Province, and the rainfall during the rooting period is 213.5mm.

[0031] (1) Soil preparation: After the previous crops are harvested, the soil is deeply plowed to a depth of 30cm. After plowing, rotary plowing is carried out with a fine harrow to make the soil finely divided.

[0032] (2) Ditching and fertilization: In the tobacco field that has been prepared, excavate a fertilization ditch at a distance of 120 cm. The depth of the fertilization ditch is 7 cm, and then apply 1800 kg / hm2 of organic fertilizer and corresponding tobacco-specific fertilizer. The amount of tobacco-specific fertilizer should be Reduce application according to 9kg N / hm2.

[0033] (3) Ridging: Ridging is carried out around the fertilization ditch, and the ridges are raised on flat ground. The height of the ridge is 35 cm, the width of the ridge bottom is 65 cm, and the width of th...

Embodiment 2

[0038] The implementation site is located in Gongping Village, Huangliang Town, Xingshan County, Yichang City, Hubei Province. The rainfall during the rooting period is 169.2mm.

[0039] (1) Soil preparation: After the previous crops are harvested, the soil is deeply plowed to a depth of 25 cm. After plowing, rotary plowing and fine harrowing are carried out to ensure that the soil is finely broken.

[0040] (2) Digging and fertilizing: In the tobacco field that has been prepared, excavate a fertilization ditch at a distance of 118 cm. The depth of the fertilization ditch is 10 cm, and then apply 3000 kg / hm2 of organic fertilizer and corresponding tobacco-specific fertilizer. The amount of tobacco-specific fertilizer should be Reduce the application according to the amount of 15.0kg N / hm2.

[0041] (3) Ridging: Ridging is carried out around the fertilization ditch, on flat ground, with a height of 30 cm, a width of 70 cm at the bottom, and a width of 33 cm at the surface.

[...

Embodiment 3

[0046] The implementation site is located in Daxinchuan Village, Hubeikou Township, Yunxi County, Shiyan City, Hubei Province, and the rainfall during the rooting period is 92.1mm.

[0047] (1) Soil preparation: After the previous crops are harvested, the soil is deeply plowed to a depth of 25 cm. After plowing, rotary plowing and fine harrowing are carried out to ensure that the soil is finely broken.

[0048] (2) Digging and fertilizing: In the tobacco field after site preparation, excavate a fertilization ditch at a distance of 120cm, the depth of the fertilization ditch is 8cm, and then apply 2100kg / hm2 organic fertilizer and corresponding tobacco-specific fertilizer in strips, and the amount of tobacco-specific fertilizer should be Reduce the application according to the amount of 10.5kgN / hm2.

[0049] (3) Ridging: the implementation site is less than 15° sloping land, centered on the fertilization ditch, the ridge height is 25cm, the ridge bottom width is 65cm, the ridge...

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Abstract

The invention discloses a cultivating method capable of promoting root development of flue-cured tobacco at the earlier stage of growth. The cultivating method comprises the steps of soil preparation,fertilization, ridging, film coating and transplanting. According to the cultivating method, on the basis of long-term experiments and demonstrations, the cultivating method capable of promoting rootdevelopment of the flue-cured tobacco at the earlier stage of growth is set up, early growth and quick development of tobacco plants at the root extending stage are accelerated by means of the cultivating method, coordination of root growth and tobacco plant growth is promoted, the drought resisting capacity of the tobacco plants is enhanced, the quality and grade structure of the flue-cured tobacco are improved, and high popularization value is achieved.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a cultivation method for promoting the root system development of flue-cured tobacco in the early growth stage. Background technique [0002] The root system is the main organ for crops to absorb soil nutrients and water. The development of the root system is closely related to the distribution, migration, and consumption of water and nutrients in the soil, and is directly related to the growth and yield formation of the aboveground parts of crops. Tobacco roots are fixation organs, absorption organs and important synthetic organs. Its growth not only affects the yield of tobacco leaves, but more importantly, affects the quality of tobacco leaves. Therefore, cultivating a strong root system, improving the ability of the root system to absorb nutrients and water, promoting the growth of tobacco leaves, and coordinating the internal chemical components of tobac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/45A01G25/00A01G13/02A01B79/00A01C21/00A01M29/08
CPCA01B79/00A01C21/00A01G13/0275A01G25/00A01M29/08A01M2200/012A01G22/45Y02A40/28
Inventor 佀国涵袁家富赵书军彭成林苏兆俊徐大兵孟贵星刘岱松周玮婧樊军
Owner INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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