A rice yield increasing agent and its application method

Abstract

The invention discloses a rice yield promoter as well as a using method thereof. The rice yield promoter is prepared by mixing salicylic acid and 12.5% of diniconazole wettable power in a weight ratio of (1-1.5): 1, preferably 1:1. When the rice yield promoter is used, 2-8 g of the yield promoter is dissolved with 10L of water and foliage spray is carried out in a rice heading pustulation period. The rice yield promoter disclosed by the invention is low in cost and good in effect, can be used for remarkably improving the rice output, and the experimental result during a year is stable, so that the rice yield promoter is a novel technology for high and stable yield of rice.

Description

technical field [0001] The invention relates to a rice yield increasing agent and its application method. Background technique [0002] Rice is an important food crop in many countries including my country, providing food and nutrition sources for more than 50% of the world's population. China's rice yield increased from 2.0t hm in 1960 after the application of dwarf and semi-dwarf varieties -2 increased to 3.5t hm in 1970 -2 , and further use of rice heterosis and modern cultivation techniques, the current rice yield has reached 6.0t hm -2 Above, the rice yield per unit area has entered the world's advanced ranks. However, since 1997 when grain reached a historical peak of 200 million tons, my country's rice production has been declining year after year. After 2004, the yield of rice per unit area entered into recovery growth, but there was no major breakthrough. It is predicted that by 2025, rice production will need to increase by about 60% to meet the needs of the w...

AI Technical Summary

Problems solved by technology

After 2004, the yield of rice per unit area entered a recovery growth, but there was no major breakthrough

However, super rice varieties are often accompanied by the disadvantages of poor stress resistance and unstable yield, and it is difficult to realize their yield potential in field production.

Moreover, in recent years, extreme climates in the rice fields of the middle and lower reaches of the Yangtze River in my country have frequently occurred, resulting in a substantial reduction in rice production in my country, which has seriously affected national food security.

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