Application of water-loss reducer in jatopha curcas forestation on dry-hot valley

A technology for afforestation of hot and dry valleys and crazy trees, applied in the fields of application, afforestation, forestry, etc., can solve the problems of low survival rate and slow growth of forest trees, and achieve the effects of increasing production, improving forest land benefits, and increasing the survival rate of afforestation

Inactive Publication Date: 2008-10-29
RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the defects of low afforestation survival rate and slow growth of trees after afforestation in the dry-hot valley area by the traditional method of jatropha plantation, and provides the application of a water-retaining agent in the afforestation of jatropha curcas in the dry-hot valley

Method used

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  • Application of water-loss reducer in jatopha curcas forestation on dry-hot valley

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] This experiment was carried out in the Xiaokuashan River Basin of Shadi Village, Yuanmou County, Yunnan Province. This county is a typical dry-hot valley with an ecologically fragile area. The number of days is 349 days, the accumulated temperature of ≥10°C is 7786°C; the annual rainfall is about 630mm, concentrated in May-September, and there is little or no rain in other months, and the annual evaporation is 3811.2mm. The climate is dry, and the evaporation is 6 times the rainfall. Total solar radiation 641.8KJ / cm 2 , the sunshine rate is 62%; the dryness is 4.4 (calculated by Penman's formula).

[0015] Jatropha curcas, also known as tung tree, stinky tung tree, Jatropha curcas, and hibiscus tree, belongs to Jatropha curcas L, a plant of the genus Jatropha in the family Euphorbiaceae.

[0016] The water-retaining agent is a kind of artificially synthesized high-molecular polymer with super water-absorbing and water-retaining and releasing capabilities. Its English n...

Embodiment 2

[0023] Embodiment 2 (control 1)

[0024] Carry out by Jatropha curcas plantation building traditional method, but except not applying ripe farmyard manure, superphosphate, potassium sulfate to make base manure and water-retaining agent, other measures are identical with embodiment 1. See Table 1 for specific effects.

Embodiment 3

[0025] Embodiment 3 (control 2)

[0026] Embodiment 3 does not apply the water-retaining agent, but applies the base fertilizer. The composition and content of the base fertilizer are the same as those of the treatment 1, treatment 2 and treatment 3 in the embodiment 1, and other measures are the same as the embodiment 1. The specific effect See Table 1.

[0027] Table 1: the afforestation survival rate of each embodiment

[0028]

[0029] It can be seen from the above table that the afforestation of Jatropha curcas with water retaining agent in this area has an average survival rate of 96.95%, and the survival rate of Jatropha curcas afforestation without water retaining agent is 74.73%, with an average survival rate of 96.95%. An increase of 22.22%. Applying 4kg of cooked farmyard manure, 0.5kg of superphosphate, 0.5kg of potassium sulfate, and 25g of water-retaining agent had the best effect, and the survival rate of afforestation reached 98.45%.

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Abstract

The invention provides a water retention agent and the application thereof in jatropha curcas forestation in arid-hot river valleys, pertaining to the technical field of plant growing. The invention comprises cultivation plots selecting, ponds digging, applying of the water retention agent and field plating. The Chinese commodity name of the water retention agent of the invention is Tudihanbaobei water retention agent, the cultivation plot is barren mountains and barren slope lands without water conservancy and irrigation; field planting is conducted in May to October, the rain season; the size of the dug planting pond is 80 cm multiplied by 80 cm multiplied by 80 cm <3>; base fertilizer comprising 2 kg to 4 kg of well-rotted farmyard manure, 0.5 kg of calcium superphosphate and 0.5 kg of potassium sulfate is fertilized in each planting pond and a nursery stock is placed in the planting pond, 20 g to 30 g of water retention agent granules are put at the root of the nursery stock and then the soil is backfilled in the planting pond. The application of the water retention agent of the invention solves the problem of the low survival ratio of forestation in arid-hot river valley areas by adopting the traditional method of jatropha curcas artificial forestation; utilization of the invention can ensure that the survival ratio of jatropha curcas forestation in arid-hot river valleys reaches 95 percent to 98 percent, raising by 22.22 percent compared with the contrastive survival ratios on average, thus improving the yield and the benefit of forest lands.

Description

technical field [0001] The invention relates to the technical field of plant cultivation, in particular to the application of a water-retaining agent in afforestation of Jatropha curcas in dry-hot valleys. Background technique [0002] As one of the main raw materials for biodiesel, Jatropha curcas is one of the main research crops for the development of biomass energy in my country. The current Jatropha patents involve extracts, biodiesel preparation, breeding and cultivation, and so on. Jatropha curcas has begun to take shape in the western region of my country, whether it is the original forest or the new forest. However, due to the hot and dry climate in the dry and hot valley region, the annual average rainfall is between 558-801.2mm, and the evaporation is 2636-3830mm, which is 3.4-6.0 times the rainfall, and the water-heat balance is seriously out of balance. Due to the special ecological environment characteristics of dry and hot valley areas, how to improve the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G23/04A01G13/02C05G1/00C09K17/18
CPCY02A40/22Y02P60/40
Inventor 方海东纪中华潘志贤杨艳鲜沙毓沧和寿甲杜波廖承飞袁理春李建增杨顺林段曰汤
Owner RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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