Method for substituting and controlling eupatorium adenophorum by using broadleaf paspalum

A technology of Eupatorium adenophorum and Paspalum latifolia, applied in the field of alternative plants, can solve the problems of poor ecological adaptability, weak competitiveness, and low substitution ability, and achieve the goals of strong stress resistance, improved competitiveness, and environmental protection Effect

Inactive Publication Date: 2011-08-03
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a kind of method that utilizes paspalum latifolia to replace and control Eupatorium adenophorum, solve the problem of poor ecological adaptability, small coverage, weak competitiveness, The problem of poor control effect
[0009] The present invention aims at t

Method used

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  • Method for substituting and controlling eupatorium adenophorum by using broadleaf paspalum
  • Method for substituting and controlling eupatorium adenophorum by using broadleaf paspalum
  • Method for substituting and controlling eupatorium adenophorum by using broadleaf paspalum

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: alternative plant ecological adaptability test

[0023] The substitute plants tested were paspalum broadleaf, African foxtail, pig dung bean, thatched cottage, corymbose cassia, perennial ryegrass, duck's grass, pennisetum, and mulberry. The test was carried out in Chitu Village, Huishui County, Guizhou Province. The test site is located at 26.2° north latitude, 106.3° east longitude, and an altitude of about 1000m. The frost-free period is about 270 days. The annual average temperature is 14-16°C. The monthly average temperature is 4-6°C, the annual extreme maximum temperature is between 34.0-36.0°C, the extreme minimum temperature is between -6.0--9.0°C, and the annual average annual precipitation is 1100-1300mm. The month is rainy, and the drought is severe from August to October.

[0024] The experimental site is an abandoned mountainous area with a slope of 25°, and the previous crop was corn. The soil is slightly acidic yellow soil with an organic ...

Embodiment 2

[0034] Embodiment 2: the competition test of substitute plant and Eupatorium adenophorum

[0035] The species of substitute plants are paspalum broadleaf and perennial ryegrass, and their competition objects are Eupatorium adenophorum. The test pots are plastic pots with a diameter of 18 cm and a height of 14.8 cm. Each pot contains 2000 g of soil from the Eupatoria adenophorum invasion site. The soil is acidic yellow soil with an organic matter content of 15.6 g / Kg. Start fertilizing one month after sowing, apply urea (effective content 46%) once a week, apply 0.03g per pot each time (dissolve in 100mL water, pour evenly on the soil surface), fertilize 7 times in total, apply 38kg / ha of urea in total . Sowing on May 26, 2010, the replacement plant was sown 1 cm deep, and Eupatorium adenophorum was sown on the soil surface, and then the soil was kept moist. When the seedlings were 2-3 cm high, the replacement plant and Eupatorium adenophorum were planted in each pot. The num...

Embodiment 3

[0042] Embodiment 3: field test of alternative plant control Eupatorium adenophorum

[0043] The test was carried out in Shazi Township, Zhenning County, Guizhou Province, about 100Km away from the site of Example 1, and to the southwest. The climate, altitude and soil texture are similar to the Huishui test site, and no serious drought occurred in the test year.

[0044] The test site is a gentle hillside with a slope of 20°, and a small number of young peach trees are planted with a density of 1 tree / 43.5m2. The number of Eupatorium adenophorum before site preparation (division number) was 71.7 plants / m2. Before sowing, Eupatorium adenophorum was cut off at the ground level, and then the roots of Eupatorium adenophorum were excavated and the roots were retained (ie, cutting treatment) to establish Paspalum latifolia. Planted on May 1, 2009. The sowing method and test design of Paspalum broadleaf are the same as in Example 1, but the difference is that 300Kg / hm of base man...

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Abstract

The invention discloses a method for substituting and controlling eupatorium adenophorum by using broadleaf paspalum, belonging to the field of substitute plants. The method comprises the following steps of: seeding broadleaf paspalum, weeding, fertilizing, felling and pouring water for overwintering on the soil planted with eupatorium adenophorum in South China, and gradually substituting broadleaf paspalum for eupatorium adenophorum to establish benign succession ecological community. By use of the broadleaf paspalum for substituting and controlling the eupatorium adenophorum, the duration control time is long for more than 10 years, the soil erosion can be prevented and the fertility of the soil can be increased. The broadleaf paspalum is a kind of quality pasture with soft stem leaf, good palatability and good economic use value; and the broadleaf paspalum can provide abundant quality feeds for developing animal husbandry in a poverty-stricken area and increase incomes of farmers.

Description

technical field [0001] The invention belongs to the field of substitute plants, and in particular relates to a method for substituting and controlling Eupatoria adenophorum by using paspalum broadleaf. Background technique [0002] Eupatorium adenophorum (Eupatorium adenophorum Sprengel), Eupatorium adenophorum genus, Asteraceae Eupatorium genus, perennial herb or subshrub, seed propagation and vegetative propagation, seeds are extremely small, 1000-grain weight 0.04-0.045g, each Eupatorium adenophorum can produce 3-10 seeds Thousands of grains, spread by wind, water or carry. Eupatorium adenophorum can be grown under climate conditions where the annual average temperature is higher than 10°C, the annual average relative humidity is higher than 68%, the absolute minimum temperature is not lower than -11.5°C, the highest temperature is below 35°C, and the coldest monthly average temperature is higher than 6°C. grow appropriately. Eupatorium adenophorum can adapt to occur an...

Claims

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Application Information

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IPC IPC(8): A01G1/00
Inventor 卢向阳刘伟成卢彩鸽杨剑芳刘冰田兆丰刘霆董丹张涛涛
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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