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Water-fertilizer integrated drip irrigation method applicable to tobacco fields in dry seasons

A tobacco field, water and fertilizer technology, applied in the field of flue-cured tobacco cultivation, can solve problems such as aggravating soil and water resource pollution, reduce planting costs, and improve tobacco leaf quality, so as to improve water use efficiency and soil moisture content, increase utilization rate, and increase yield and quality effects

Active Publication Date: 2019-02-01
NORTHWEST A & F UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the extensive use of organic fertilizers, it is necessary to take disease prevention measures integrating water and medicine during the growth of flue-cured tobacco, which aggravates the pollution of soil and water resources to a certain extent, which is not conducive to reducing planting costs and improving tobacco leaf quality.

Method used

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  • Water-fertilizer integrated drip irrigation method applicable to tobacco fields in dry seasons
  • Water-fertilizer integrated drip irrigation method applicable to tobacco fields in dry seasons
  • Water-fertilizer integrated drip irrigation method applicable to tobacco fields in dry seasons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The experiment site is Liuqu Village, Caojiawan Township, Long County, Baoji City. Select 9 mu of tobacco fields as the experimental site, of which 3 mu of tobacco fields are mixed with organic fertilizer and chemical fertilizer, topdressing fertilizer is applied in holes, and the tobacco field is irrigated with natural rainfall, as the experimental group T1, and the other 3 mu of tobacco fields are mixed with organic fertilizer and chemical fertilizer. Topdressing was treated with water and fertilizer integration, as the experimental group T2, the last 3 mu of tobacco fields were only applied chemical fertilizers, topdressing was applied in holes, and natural rainfall was used to irrigate the tobacco fields, as the control group (CK). The variety of flue-cured tobacco is Liao 17, the organic fertilizer is distiller's grains, and the chemical fertilizer is special fertilizer for flue-cured tobacco, P fertilizer (P 2 o 5 ) and K fertilizer (K 2 O), distiller's grains a...

Embodiment 2

[0058] The experiment site is Xinwan Village, Datong Town, Hanbin District, Ankang City. Select 4 mu of tobacco field with organic fertilizer and chemical fertilizer, apply topdressing fertilizer in holes, and use natural rainfall to irrigate the tobacco field as the experimental group T1, and apply organic fertilizer and chemical fertilizer to the other 4 mu of tobacco field, and topdress fertilizer with integrated treatment of water and fertilizer, as the experimental group T1. In group T2, the other 4 mu of tobacco fields were only fertilized with chemical fertilizers, topdressing fertilizer was applied in holes, and natural rainfall was used to irrigate the tobacco fields, which served as the control group (CK). The variety of flue-cured tobacco is Yun 97, the organic fertilizer is rapeseed cake, and the chemical fertilizer is special fertilizer for flue-cured tobacco, P fertilizer (P 2 o 5 ) and K fertilizer (K 2 O). Rapeseed cake and chemical fertilizers were applied ...

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Abstract

The invention discloses a water-fertilizer integrated drip irrigation method applicable to tobacco fields in dry seasons. Organic fertilizer and chemical fertilizer are mixed proportionally and applied in ridging and a seedling stage, an extending stage, a vigorous growth stage and a manure stage of tobacco, necessary moisture and nutrients are replenished in different stages of the tobacco in a growth period by means of water-fertilizer integrated drip irrigation, and accordingly disease resistance of the tobacco is improved, and the weather fleck occurrence rate and the disease index are decreased. The method is applicable to regions under conditions of low precipitation, drought years, irrigation inconvenience and serious water shortage in dry seasons, low cost and high water-fertilizerutilization efficiency are realized, tobacco growth and development and quality improvement are benefited, and the requirement of water-fertilizer integrated management of the tobacco fields in dry seasons is met.

Description

technical field [0001] The invention belongs to the field of flue-cured tobacco cultivation, and in particular relates to an integrated drip irrigation mode of water and fertilizer based on combined application of organic fertilizer and chemical fertilizer, which is suitable for dry season tobacco fields. Background technique [0002] Flue-cured tobacco (Nicotiana tabacum L.) is a commercial crop for the purpose of harvesting tobacco leaves. Moisture is related to the intensity and direction of the metabolism of flue-cured tobacco, and also affects the formation and accumulation of various organic substances in flue-cured tobacco, which has a great impact on the yield and quality of tobacco leaves. For the tobacco fields that are inconvenient to irrigate and rely on rainfall to meet the moisture needs of flue-cured tobacco, once the rainfall is insufficient, it cannot meet the moisture and nutrient needs of flue-cured tobacco, which will affect the growth and development of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G22/45
CPCA01C21/005A01G22/45
Inventor 张立新程亚倩韦成才袁帅李爱梅
Owner NORTHWEST A & F UNIV
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