Seasonal drought relieving and high yield ensuring compound agent for double cropping rice and application method thereof

Abstract

The invention belongs to the field of crop production and discloses a seasonal drought relieving and high yield ensuring compound agent for double cropping rice. The compound agent includes an early-season rice special type and a later-season rice special type. The early-season rice special type includes, by weight, 50% of hydroxyethylcellulose, 20% of amino acid raw powder, 15% of monopotassium phosphate, 10% of potassium fulvate, 2.5% of zinc sulfate, 2% of prohexadione calcium, 0.2% of compound sodium nitrophenolate, and 0.05% of abscisic acid; and the later-season rice special type includes, by weight, 30% of hydroxyethylcellulose, 30% of amino acid raw powder, 20% of potassium fulvate, 10% of monopotassium phosphate, 5% of Kang polyphenol, 4.8% of zinc sulfate, and 0.2% of sodium alpha-naphthylacetate. In the formula, comprehensive drought resistant capability of rice is improved through several ways. The compound agent is quick in effects, has long lasting time and has good effects.

Description

technical field [0001] The invention belongs to the field of crop production and relates to a rice drought alleviating agent. Background technique [0002] Double-cropping rice is the main planting mode of rice in southern my country. Due to two crops a year, the total output of double-cropping rice is 900 kg / mu, and the high-yield field reaches 1300 kg / mu, which is an average increase of more than 60% compared with one-cropping rice. my country's double-cropping rice The planting areas are mainly distributed in 10 provinces including Zhejiang, Anhui, Jiangxi, Hubei, Hunan, Guangdong, Guangxi, Hainan, Yunnan, and Fujian, with a total area of ​​10 million hm 2 Left and right, double-cropping rice production has made an important contribution to solving the problem of food security in southern my country where there are many people and little land. The double-cropping rice area is traditionally a high-water area with large precipitation in the previous year. However, due to th...

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Problems solved by technology

[0003] Among the existing anti-drought agents, the passive anti-drought measures are mainly imposed on a certain drought-resistant point (such as reducing soil water evaporation or reducing transpiration or increasing plant internal hormones or adjusting leaf stomata opening, etc.), without sufficient Use the adaptability of crops to drought to actively resist drought. At the same time, rice is different from other dryland crops. Its growth environment and plant itself have much higher water requirements than dryland crops. Seasonal drought affects double-cropping rice. The impact on growth is much higher than that of other dryland crops. Therefore, according to the growth pattern of double-cropping rice and the characteristics of seasonal drought, the stomatal switch will be controlled, the polymer organic matter will form a film to prevent water and disperse, promote the growth of crop roots, promote plant photosynthesis and promote tillering. The combination of regulatory substances such as occurrence and development can slow down the harm of seasonal drought to double-cropping rice and can effectively increase the yield and variety of compound agents. the meaning of

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