A compound regulator for preventing corn premature senescence and/or improving corn yield

Abstract

The invention discloses a composite conditioning agent for preventing premature senescence of corns and / or raising yield of corns. The composite conditioning agent per 1kg is composed of 200-400mg of succinic acid, 600-1200mg of choline chloride, 0.00002-0.00004mg of 1-(2-chlorine-4-pyridyl)-3-phenylurea, 15-25mg of N-tert-butyl-alpha-phenyl nitrone, and the balance being water. The composite conditioning agent can promote corn seed germination and seedling growth, can regulate and control corn root growth and development observably, can promote corn blade growth and development, can raise corn yield, and can improve corn ear characters. The ear length is increased by 0.56cm / ear averagely compared to the control group, the row grain number is increased by 1.76 grains / row averagely, the hundred-grain weight is raised by 1.83g averagely, and the average growth rate of corns is 7.30%.

Description

technical field [0001] The invention relates to a composite regulator for preventing corn premature aging and / or improving corn yield, belonging to the field of plant regulators. Background technique [0002] Corn is an important food and fodder crop in my country, and occupies an extremely important position in the national economy. The abundance and abundance of corn production has gradually become an important factor affecting the balance of food supply and demand in my country and determining the development of animal husbandry. But in the limited area of ​​arable land, the area of ​​corn planting is limited to a certain extent, how to increase the yield per unit area becomes the key to the future corn production. Leaf is an important organ for plants to carry out photosynthesis and produce organic matter. About 95% of the dry matter of corn comes from photosynthetic accumulation. Research results have shown that if the life span of functional leaves can be extended by 1...

AI Technical Summary

Problems solved by technology

The first is the soil condition, the quality of the plowed land is poor, the soil permeability is poor, and the small amount of farmyard manure is applied, which leads to the lack of organic matter in the soil, the imbalance of carbon and nitrogen ratio, and the reduction of biological nitrogen fixation ability, resulting in insufficient nutrition in the later stage of corn growth.

The second is the cultivation conditions. The unreasonable planting density or planting form of corn will relatively reduce the nutrient area of ​​a single plant; continuous cropping for many years will cause a large amount of Fusarium, Pythium and take-all pathogens to accumulate in the soil, affecting the growth of corn

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