Method for building panicum virgatum into vegetation in severe saline-alkali soil

A technology for severely saline-alkali land and switchgear, applied in the application, organic fertilizer, forestry and other directions, can solve the problems that the improvement method cannot be widely promoted, reduce soil evaporation, and improve the cost of The effect of building speed and water retention performance is good

Active Publication Date: 2016-08-10
SHANDONG AGRI SUSTAINABLE DEV INST
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Problems solved by technology

Although these two methods have significant effects on improving saline-alkali bare land, the cost of improvement is too high and the existing economic conditions cannot be met, so the improvement methods cannot be widely promoted; For annual plants, artificially establish a hay layer, increase soil coverage, reduce soil evaporation, enhance soil leaching and reduce salt content in surface soil, thereby improving soil physical and chemical conditions, and then plant perennial high-quality forage plants, using the principle of plant succession, gradually restored to usable grass
The existing vegetation establishment method has a low vegetation survival rate and low efficiency and is difficult to promote
Chinese patent application CN2012103133171 discloses a method for planting switchgrass in saline-alkali land, which greatly improves the survival rate of plant seedlings, but this method is only suitable for moderate saline-alkali land

Method used

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  • Method for building panicum virgatum into vegetation in severe saline-alkali soil

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Experimental program
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Embodiment 1

[0035] Forage Science and Technology Demonstration Base of Shandong Academy of Agricultural Sciences, Nonggao District, Dongying City, the experimental site covers an area of ​​2.5 mu, and the total salt content of the experimental site soil is 0.57wt% to 1.1wt%. It started on July 27, 2014.

[0036] Specific steps are as follows:

[0037] a. Land consolidation

[0038] Weeding and rotary tilling the land to make the soil level, the soil particle size is not more than 5mm, dig transplanting holes according to the row spacing (80-100cm) × (80-100cm), the depth of the hole is 40-50cm, and the diameter of the upper opening is 30-40cm Apply 500g base fertilizer at the bottom of every hole, and spray 120g treatment agent (every 100g treatment agent is made up of chitin 8g, cornstarch 15g, 2 parts of alkyl glycosides and surplus water) around the inside of each transplant hole;

[0039] The base fertilizer includes 50 parts of cow dung, 12 parts of mulberry leaves, 1 part of green ...

Embodiment 2

[0053] Liguo Township Forage Experiment Demonstration Base, Zhanhua District, Binzhou, has an area of ​​5 mu, and the total salt content of the soil in the experiment site is 0.61wt%~0.94wt%. Transplanting began in early August 2015.

[0054] Specific steps are as follows:

[0055] a. Land consolidation

[0056] Weeding and rotary tilling the land to make the soil level, the soil particle size is not more than 5mm, dig transplanting holes according to the row spacing (80-100cm) × (80-100cm), the depth of the hole is 40-50cm, and the diameter of the upper opening is 30-40cm Apply 500g base fertilizer at the bottom of every hole, and spray 150g treatment agent (composition is the same as embodiment 1) around the inside of each transplant hole;

[0057] The base fertilizer includes 40 parts of cow dung, 10 parts of mulberry leaves, 2 parts of green tea powder, 20 parts of corn stalks, 0.2 parts of polyvinyl alcohol, and 0.08 parts of N-oleoyl sarcosine (the preparation method is...

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Abstract

The invention relates to a method for building panicum virgatum into vegetation in severe saline-alkali soil. The method comprises the steps as follows: soil preparation, transplanting hole digging, base fertilizer application, treating agent spraying, seedling selection and preparation, digging, transplanting and plant division, field transplanting, field management and the like. According to the method, a field planting experiment is performed in the severe saline-alkali soil in the yellow river delta region, the survival rate is high, the vegetation building speed is high, the vegetation can be built in the same year, and a considerable number of grasses and seeds are harvested; the energy grass, namely, panicum virgatum is successfully planted in the severe saline-alkali soil, the method can play an active role in promoting development and utilization of the severe saline-alkali soil and popularization of biomass energy, thereby having a broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of ecological agriculture, and in particular relates to a method for building switchgrass into vegetation in severe saline-alkali land. Background technique [0002] Switchgrass (Panicum virgatum) is a tall licorice in tropical grasslands originating in North America. It belongs to the genus Panicum in the family Poaceae. In recent years, it has been deeply studied as a new energy model crop. It has been found that lignocellulose can be used to produce ethanol, and it can also be used for thermal power generation. It has become an important plant energy source. Planting energy crops can increase energy supply, Environmental protection is an important measure to achieve sustainable development. [0003] China is a country with a large amount of saline-alkali land, distributed in 17 provinces including the Northwest, Northeast, North China, and coastal regions. The total area of ​​saline-alkali wasteland and ...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G23/04C05G1/00
CPCA01G17/005A01G23/04C05F11/00C05F3/00C05G3/80
Inventor 贾春林盛亦兵刘涛张进红王祥峰王国良胥双军
Owner SHANDONG AGRI SUSTAINABLE DEV INST
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