A light and simplified cultivation method for direct direct seeding of short-season cotton in coastal saline-alkali land

A cultivation method and saline-alkali land technology, which is applied in the cultivation field of short-season cotton open-field late direct seeding instead of film-covered spring cotton, which can solve the problems of protracted boll-setting period, boll-opening dispersion, repeated flower harvesting, increased physical and chemical input and plant protection times, artificial Large physical and chemical investment and other problems, to achieve the effects of saving pesticides for pest control, facilitating centralized harvesting, and simplifying the management process

Active Publication Date: 2020-02-21
SHANDONG COTTON RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this cultivation mode is that: the use of spring cotton varieties in mid-to-late April must be covered with plastic film to increase ground temperature and reduce salt damage, and increase the seeding rate to ensure the seedling rate, but it will easily lead to increased physical and chemical inputs and plant protection times , the boll-setting period is protracted, boll opening is scattered, flowers are harvested multiple times, the operating procedures are numerous, the investment in artificial materialization is large, the pollution of plastic film is serious, and the efficiency of cotton planting is poor
[0003] Open field direct seeding refers to the method of sowing seeds directly in the open field. Non-saline land with medium soil strength can adopt open field direct seeding, but open field direct seeding is used in coastal saline-alkali land. On the one hand, it is easy to cause difficulty in cotton seedling emergence and lack of seedlings due to saline-alkali stress. On the other hand, due to insufficient accumulated temperature, the cotton bolls are not fully developed, which leads to a reduction in cotton production, so it is currently impossible to implement in coastal saline-alkali land.

Method used

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  • A light and simplified cultivation method for direct direct seeding of short-season cotton in coastal saline-alkali land
  • A light and simplified cultivation method for direct direct seeding of short-season cotton in coastal saline-alkali land

Examples

Experimental program
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Effect test

Embodiment 1

[0029] This test takes Lumianyan 28 (spring cotton) and Lu 54 (short-season cotton) as test materials, wherein the short-season cotton Lu 54 adopts Gaoqiao brand 60% imidacloprid suspension seed coating agent (per kilogram consumption 10ml) produced by Bayer Company coating. This experiment was carried out in Wangwa Village, Lijin County, Dongying City for two consecutive years from 2015 to 2016. Set up two planting modes of spring cotton film-covered sowing and short-season cotton open-field direct seeding. Repeat 3 times, a total of 6 plots, with a plot area of ​​50m 2 , planted in 6 rows with equal row spacing, and the row spacing is 76cm.

[0030] Spring cotton was sown on April 24, 2015 and April 26, 2016, and covered with plastic film; the density of spring cotton was 3,500 plants per mu, and coarse pruning was used, and it was planted on July 20, 2015 and July 18, 2016. Perform manual topping. Fertilization and other diseases, insects, weeds, etc. are controlled by ...

Embodiment 2

[0037] 1) Irrigation to create moisture

[0038] For severe saline-alkali land with a salt content of 0.55%, irrigate with salt water 18 days before sowing, and use 140 cubic meters of water per mu;

[0039] 2) Scraping the soil to build the seed bed, sowing, fertilizing, and spraying herbicides at one time

[0040]On May 20, use a sowing machine (ZL200910209910.X) with a front scraper to scrape the 0-5cm topsoil layer to both sides to expose the bottom moisture, forming a seeding bed (see attached figure 1 );

[0041] Select the short-season cotton variety Lu 54, use full-bodied seeds with a germination rate of more than 80%, coat with 60% imidacloprid suspension seed coating agent after velvet removal, mechanical precision drill or hole sowing in the open field, without plastic film, use 1.3 seeds per mu kg;

[0042] Use 50kg of NPK compound fertilizer (15:15:15) per mu, 15kg of resin-coated urea (release period 90d, nitrogen content ≥ 40%) as base fertilizer, and apply i...

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Abstract

The invention discloses a light and simple cultivation method for open ground direct seeding of short-season cotton in coastal saline soil. According to the method, high-quality short-season cotton varieties are adopted, and a novel cultivation manner is established by adopting the following measures: watering and building soil moisture, mechanically driving soil to build a seedbed, precise seeding on an open ground, combining a quick-acting fertilizer and a slow release fertilizer for single fertilization, performing chemical top sealing, harvesting cotton in a concentration manner and so on, therefore, on the bases of reducing salt damage and ensuring normal emergence of cotton seedlings and yield formation, the materialization and labor input can be effectively reduced, the pollution caused by pesticides and plastic film residues is reduced, and the comprehensive benefits of cotton planting are improved.

Description

technical field [0001] The invention relates to a method for cultivating cotton in coastal saline-alkali land, in particular to a method for utilizing short-season cotton in its short growth period and adopting short-season cotton in the open field for late sowing instead of film-covered spring cotton cultivation. Background technique [0002] Spring cotton varieties are commonly planted in first-ripening cotton fields in the coastal saline-alkali land of the Yellow River Delta. The current cultivation techniques are planting at the right time (mid-to-late April), medium density (about 3,500 plants / mu), mulching with plastic film, manual pruning, and multiple flower harvests. . The disadvantage of this cultivation mode is that: the use of spring cotton varieties in mid-to-late April must be covered with plastic film to increase ground temperature and reduce salt damage, and increase the seeding rate to ensure the seedling rate, but it will easily lead to increased physical a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/50
CPCA01G22/00
Inventor 董合忠代建龙李维江罗振卢合全徐士振唐薇张冬梅李振怀孔祥强辛承松
Owner SHANDONG COTTON RES CENT
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