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A kind of anti-drought composition and its application and preparation

A technology of composition and pharmaceutical preparation, applied in the directions of application, animal repellent, plant growth regulator, etc., can solve the problems of white clover growth and yield loss, difficult and high application, poor drought resistance, etc., and is suitable for large-scale promotion. Application, application method is simple, good effect of drought resistance

Inactive Publication Date: 2017-03-15
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of these hormones or growth regulators is high, or the application is difficult and high, and they are limited when they are widely used in agricultural production.
[0005] At present, most of the research reports on exogenous addition to improve plant stress resistance use a single additive, which is mainly limited to the laboratory research stage. If it is used in large-scale production, the production cost of the additive will be high, and the application method limited operability
However, there are few reports on improving the drought resistance of white clover by adding exogenous sources at home and abroad, and the effective addition combination is especially rare.
[0006] Therefore, in view of the poor drought resistance of white clover in production and cultivation, the demand for water is large, the loss caused by drought stress to the growth and yield of white clover is extremely serious, and there is currently a lack of effective improvement of the drought resistance of white clover with low cost and simple application. With the current situation of low exogenous addition and its combination, it is urgent to explore simple and effective means to improve the survival rate and growth of white clover under drought stress, with the main purpose of reducing cultivation and management input, in order to improve the drought resistance of white clover in production. Cultivation provides practical and effective ways and methods

Method used

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  • A kind of anti-drought composition and its application and preparation
  • A kind of anti-drought composition and its application and preparation
  • A kind of anti-drought composition and its application and preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The screening of embodiment 1NaCl, SA root application concentration

[0035] Test material: Drought-sensitive 'Latinuo' white clover was used as the test material.

[0036] Material cultivation: plant white clover in plastic toughened pots with a length of 24 cm, a width of 18 cm, and a height of 6 cm. Each pot is filled with the same weight of sterilized quartz sand, according to 1g / m 2 Calculate the seeding rate of pots and pots, sow on quartz sand and germinate in a light incubator at 24°C. After germination for 7 days, continue to cultivate with Hoagland full nutrient solution. The temperature is 24°C during the day and 20°C at night, and the duration is 12 hours each. , a relative humidity of 70%, and a light intensity of 500 μmol m -2 the s -1 . When the seedlings grew to 30 days (2 mature leaves), the materials with consistent growth were selected for the test.

[0037] Experimental design: ①NaCl concentration level: set 0g / L (control), 0.60g / L, 1.20g / L, 1....

Embodiment 2

[0044] The screening of embodiment 2 foliage spraying NaCl, SA concentration

[0045] Test material: Drought-sensitive 'Latinuo' white clover was used as the test material.

[0046] Material cultivation: White clover is planted in pots with a diameter of 24 cm and a depth of 30 cm. Put the same weight of ordinary garden soil that has been sterilized by insecticides and fungicides and fully mixed in each pot. According to 1g / m 2 Calculate the sowing amount of each pot according to the seeding rate, and conduct unified routine management such as watering and weeding for all pots after sowing. Placed in the greenhouse for 3 months, the average temperature of the greenhouse is 20°C, the relative humidity is 65%, the light time is 12h, and the light intensity is 500μmol m -2 the s -1 . When the seedlings grew to 30 days (2 mature leaves), the materials with consistent growth were selected for the test.

[0047] Experimental design: ①NaCl concentration level: set 0g / L (control...

Embodiment 3

[0054] Example 3 Exogenous NaCl and SA combination concentration screening

[0055] Test material: Drought-sensitive 'Latinuo' white clover was used as the test material.

[0056] Material cultivation: method is the same as embodiment 2.

[0057] Experimental design: According to the single concentration screening results, in the concentration combination treatment, set 4 concentration gradients for NaCl and SA respectively, and the NaCl concentrations are: 0.6g / L, 1.20g / L, 1.80g / L and 2.4g / L; SA concentrations were: 1.38mg / L, 2.76mg / L, 5.52mg / L and 8.28mg / L. Use 1% Tween-80 solvent to prepare 0.6g / L NaCl+1.38mg / L SA, 0.6g / L NaCl+2.76mg / L SA, 0.6g / L NaCl+5.52mg / L SA, 0.6g / L NaCl +8.28mg / L SA, 1.20g / L NaCl+1.38mg / L SA, 1.20g / L NaCl+2.76mg / L SA, 1.20g / L NaCl+5.52mg / L SA, 1.20g / L NaCl+8.28 mg / L SA, 1.80g / L NaCl+1.38mg / L SA, 1.80g / L NaCl+2.76mg / L SA, 1.80g / L NaCl+5.52mg / L SA, 1.80g / L NaCl+8.28mg / L L SA, 2.4g / LNaCl+1.38mg / L SA, 2.4g / L NaCl+2.76mg / L SA, 2.4g / L NaCl+5.52mg / L SA, ...

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Abstract

The invention relates to the technical field of agricultural production and in particular relates to a drought resisting composition as well as application and preparation thereof. The drought resisting composition is formed by salicylic acid and a neutral sodium salt. The drought resisting composition is capable of effectively delaying withering of the leaves of trifolium repens under drought stress and has a remarkable synergistic effect in contrast with a single dosage; besides, the application effect of the drought resisting composition is not limited by application time; the drought resisting composition has a good drought resisting effect on the drought sensitive trifolium repens variety and the drought-resistant trifolium repens variety, and further is low in production cost and suitable for large-area popularization and application.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to a drought-resistant composition and its application and preparation. Background technique [0002] Drought stress is one of the main abiotic stress factors affecting normal plant growth and crop yield. Since the middle of last century, the area affected by crop drought in my country has increased year by year. At the same time, due to the impact of global climate change, the persistent drought situation in most parts of northern my country may become more severe, while the seasonal and persistent drought in the south is becoming more and more prominent. [0003] White clover (Trifolium repens L.) is a perennial high-quality forage grass belonging to the genus Trifolium of Leguminosae, which is widely cultivated all over the world. It is the leading leguminous forage for the establishment of artificial grasslands in the middle and lower reaches of the Yangtze Riv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/08A01N59/02A01N59/00A01P21/00A01N37/40
CPCY02A50/30
Inventor 彭燕谢欢张艳李州彭丹丹张新全马啸黄琳凯闫艳红
Owner SICHUAN AGRI UNIV