Application of brassinosteroids to drought resistance and afforestation

Brassinolide, drought technology, applied in afforestation, application, forestry and other directions, can solve the problems of backward water absorption, reduced water absorption capacity of water-retaining agent, high price, etc., to promote the growth of saplings, reduce cell membrane permeability, and enhance drought resistance. sexual effect

Inactive Publication Date: 2009-09-23
NORTHWEST A & F UNIV
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AI Technical Summary

Problems solved by technology

However, improper use will easily cause the water-retaining agent to dry out, resulting in water absorption, and as time goes by, the water-absorbing ability of the water-retaining agent in the soil will gradually decrease or even become invalid.
Dry water drought-resistant affore...

Method used

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  • Application of brassinosteroids to drought resistance and afforestation

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Embodiment

[0026] 1. The natural situation of the test area: This test is located in the Gaojiawan River Basin in Ansai County, Northern Shaanxi. This area is located in the hinterland of the Loess Plateau, which is a typical beam-shaped hilly and gully area, with a semi-arid continental monsoon climate in the warm temperate zone. The average altitude is 1200m, the annual precipitation is 485.3mm, the interannual variation of rainfall is large, and the annual distribution is uneven. The rainfall from July to September accounts for more than 60% of the annual precipitation, the dryness is 1.5-2.5, and the annual average temperature is 8.8 ℃ , the average frost-free period is 160 days, and the total annual radiation is 552.68kJ / cm 2 . The main soil type is loess soil.

[0027] 2. Afforestation area: 30hm 2 .

[0028] 3. Brassinolide-treated seedlings and planting: select local suitable tree species such as Chinese pine, arborvitae, mountain apricot, seabuckthorn, and mountain peach. Th...

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Abstract

The invention relates to application of brassinosteroids to drought resistance and afforestation, which has simplicity, low cost, no soil pollution and quick effect and quite important and profound significance to accelerating vegetation to restore and reconstruct and improving the ecological environment. The invention comprises the following steps: (1) selecting the brassinosteroids with the weight percentage of 0.1 percent; (2) selecting an afforestation area; (3) selecting afforestation seasons from the last third of October to the last third of November in autumn and from the first third of March to the first third of April in spring; (4) selecting a land preparation method and specification: digging fish-scale pits on a sloping surface along a contour line, wherein the rows of the fish-scale pits are arrayed in a shape like the Chinese character 'pin', and the each fish-scale pit has a length of 60 cm, a width of 40 cm and a width of 40 cm; (5) determining afforestation tree species and seedling tree ages, wherein the afforestation tree species comprise pitch pines, biota orientalis, ansu apricots, prunus davidiana and hippophae rhamnoides, and annual seedling trees of the biota orientalis and other deciduous species are selected for the afforestation except that biennial seedling trees of the pitch pines are selected for the afforestation; (6) carrying out root-dip treatment of the brassinosteroids; and (7) planting the seedling trees.

Description

1. Technical field: [0001] The invention relates to a drought-resistant afforestation method, in particular to an application of brassinosteroid in drought-resistant afforestation, in particular to an application method of brassinosteroid in drought-resistant afforestation in arid and semi-arid areas of the Loess Plateau. 2. Background technology: [0002] The vegetation in the arid and semi-arid areas of the Loess Plateau is sparse, soil erosion is serious, and the ecological environment is deteriorating, which greatly affects the development of social economy. For more than half a century, in order to improve the ecological environment and promote social and economic development, the central and local governments have invested a lot of money in vegetation construction. Due to the scarcity and uneven distribution of precipitation in the Loess Plateau, the large amount of evaporation, and the deep burial of groundwater, there is no possibility for plants to absorb and utiliz...

Claims

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Application Information

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IPC IPC(8): A01G23/00A01G23/04
CPCY02A40/22Y02P60/40
Inventor 李凯荣韩刚王红红
Owner NORTHWEST A & F UNIV
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