Drought resistant agent for plants

Abstract

The invention discloses a drought resistant agent for plants. The drought resistant agent comprises, by weight, 10 to 100 parts of lanthanum chloride, 25 to 100 parts of arginine, 10 to 100 parts of cystine, 25 to 100 parts of aspartic acid, 2 to 50 parts of vitamin B1, 2 to 50 parts of vitamin B2, 1 to 10 parts of selenium element, 2 to 20 parts of plant-growth regulator, 1 to 10 parts of antibacterial and antiseptic agent, 1 to 3 parts of an osmotic agent, 1 to 16 parts of a trace element and 1 to 90 parts of alginate oligosaccharide. A preparation method for the drought resistant agent comprises the following steps: (1) preparing alginate oligosaccharide; (2) preparing a mixture; and (3) carrying out uniform mixing under stirring. The active component alginate oligosaccharide of the drought resistant agent is cheap and can promote prosperity of plant roots, adjust transpiration of plants, enhance the stress resistance of plants and the selenium content of fruit, regulate growth and development of plants, obviously improve in-vitro biological enzyme activity in crops, accelerate metabolism, promote accumulation of permeation substances, and improve water absorption, water retention and free radical removal capability of crops; the drought resistant agent has excellent drought resistance and yield increasing effect; and the preparation method is simple.

Description

technical field [0001] The invention relates to a drought-resistant agent, in particular to a plant drought-resistant agent. Background technique [0002] Drought is one of the main factors affecting the adversity and yield reduction of food crops worldwide. According to the "China Flood and Drought Disaster Bulletin" released by the Ministry of Water Resources of China, the average annual grain loss of crops due to drought rose from 4.35 billion kilograms in the 1950s to 20.94 billion kilograms in the 1990s. The average annual grain production is 28.57 billion kilograms. [0003] my country is a big agricultural country and also a big corn planting country. Adversity stresses such as drought are extremely harmful to the growth of maize. At present, these adversity stresses are usually dealt with by improving field management techniques or using chemical agricultural preparations. However, the excessive use of chemical agricultural preparations has gradually exposed probl...

AI Technical Summary

Problems solved by technology

However, the excessive use of chemical agricultural preparations has gradually exposed problems such as low utilization rate, environmental pollution, food safety, etc., which has caused a great negative impact on agricultural production and ecological environment, and has attracted widespread attention worldwide.

Especially in recent years, accidents in my country's food safety field have occurred frequently, a large part of which is caused by the abuse and residue of chemical agents. The current chemical drought resistance technology mainly refers to the use of chemical substances to maintain soil moisture and reduce water loss caused by transpiration of corn crops. Some use anti-transpiration agents to reduce water consumption caused by transpiration, but the drought resistance is unstable and have a certain impact on photosynthesis; some use plant regulators such as abscisic acid to spray directly on the stomatal guard cells, Stimulate the closure of stomata and resist transpiration; some use water-absorbing resin as water-retaining agent, mainly used for drought-resistant seedlings, which can only work in the seedling stage of corn crops, and under the action of fertilizer salt, the water-retaining capacity is reduced. In addition, its safety and degradability need to be further improved; some use plant regulator gibberellin and other seed dressings, mainly to ensure that corn crops emerge neatly, but limited to the period of use