Method for improving germination rate of direct seeding rice seeds under low-oxygen condition

Abstract

The invention discloses a method for improving the germination rate of direct-seeding rice seeds under a low-oxygen condition. The method comprises the following steps: respectively adding water into an inner coating film and an outer coating film, and uniformly stirring to obtain an inner coating film agent and an outer coating film agent for later use; the method comprises the following steps: mixing and coating specially pretreated rice seeds with an inner film coating agent, naturally standing for 2-3 hours, then mixing and coating with an outer film coating agent, and then drying in a low-temperature drying machine; and after determining that the moisture content of the dried coated rice seeds is qualified, carrying out waterproof packaging and storage. According to the method, a unique rice seed pretreatment process is adopted, meanwhile, the mass ratio of the coating agent to the rice seeds is strictly limited to be (1.8-2.2): 1 during coating, the specially-made coating agent is combined with the specific rice seed pretreatment process, the germination rate, the germination index and the vital index of the rice seeds under the low-oxygen condition can be effectively increased, and the mildew rate of the rice seeds is reduced. The problem of oxygen deficit caused by too large rainfall, potholes and water accumulation on the field surface and too thick covering soil is solved, and a reliable guarantee is provided for income and yield increase of rice.

Description

technical field [0001] The invention belongs to the technical field of agriculture and discloses a method for improving the germination rate of direct-directed rice seeds under low-oxygen conditions. Background technique [0002] Rice direct seeding is a light and simple cultivation technology that has appeared since the 1980s. It refers to the technology of directly sowing rice seeds in the field and cultivating rice without the need for seedling raising and transplanting during the rice cultivation process. Compared with transplanted rice, rice direct seeding technology is popular among farmers for its advantages of reducing labor intensity and saving production costs. According to incomplete statistics, the area of ​​direct-directed rice in my country has exceeded 2 million mu. According to the law of the development of foreign rice cultivation technology with industrialization and marketization, with the improvement of the scale of rice production in my country and the ...

AI Technical Summary

Problems solved by technology

However, there are also corresponding problems in the process of direct-directed rice cultivation, among which the uneven emergence caused by low germination rate is one of the serious obstacles affecting the high and stable yield of direct-directed rice.