Light and simple cultivation method for open ground direct seeding of short-season cotton in coastal saline soil

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: 2017-06-06
SHANDONG COTTON RES CENT
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  • Abstract
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  • 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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  • Light and simple cultivation method for open ground direct seeding of short-season cotton in coastal saline soil
  • Light and simple cultivation method for open ground direct seeding of short-season cotton in coastal saline soil

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Experimental program
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Effect test

Embodiment 1

[0029] In this experiment, Lu Mianyan 28 (spring cotton) and Lu 54 (short-season cotton) were used as test materials. Among them, the short-season Mianlu 54 used Bayer's Gaoqiao brand 60% imidacloprid suspension seed coating agent (10ml per kilogram) Coating. The experiment was carried out in Wangwa Village, Lijin County, Dongying City for two consecutive years from 2015 to 2016. Two planting modes are set for spring cotton mulching and seeding, and short-season cotton for direct seeding. Repeat 3 times, total 6 plots, plot area 50m 2 , Using 6 rows of equal row spacing planting, row spacing 76cm.

[0030] Spring cotton was sown on April 24, 2015 and April 26, 2016, respectively, and covered with plastic film; the spring cotton density was 3,500 plants per mu, using coarse pruning, and was sown on July 20, 2015 and July 18, 2016 Perform manual topping. Fertilization and other diseases, pests, weeds, etc. are controlled by local conventional management. Fertilization is divided...

Embodiment 2

[0037] 1) Irrigation to make moisture

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

[0039] 2) Scrape the soil to build a seed bed, plant seeds, fertilize, and spray herbicides in one time

[0040] On May 20th, a seeding machine with a front scraper (ZL200910209910.X) was used to scrape the 0~5cm surface soil layer to both sides to expose the bottom moisture to form a seed bed (see attached figure 1 );

[0041] The short-season cotton variety Lu54 is selected, with full and plump seeds with a germination rate of 80% or more, and after lint removal, they are coated with 60% imidacloprid suspension seed coating agent. kg;

[0042] Apply 50kg of NPK compound fertilizer (15:15:15) per acre and 15kg of resin-coated urea (release period 90d, nitrogen content ≥40%) as base fertilizer, and apply it to 10cm below the seed when sowing;

[0043] Before sowing, use the herbicide 48%...

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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 cotton cultivation method in coastal saline-alkali land, in particular to a cultivation method that utilizes the short growth period of short-season cotton, and adopts short-season cotton open field and late direct sowing instead of spring cotton mulching planting. Background technique [0002] Spring cotton varieties are commonly planted in the first-cropping cotton fields in the coastal saline-alkali land of the Yellow River Delta. The current cultivation techniques are suitable time sowing (mid-to-late April), medium density (about 3500 plants / mu), mulching film, artificial pruning, and multiple harvesting. . The shortcomings of this cultivation model are: the use of spring cotton varieties for sowing in mid-to-late April must be covered with plastic film to increase ground temperature and reduce salt damage, and increase the amount of seeding to ensure the seedling rate, but it is easy to increase the physical and chemical inp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
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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