Seed pelleting method for promoting one-time seeding of full seedlings under wet direct seeding paddy flooding conditions

Abstract

The invention discloses a seed pelleting method for promoting one-time seeding of full seedlings under wet direct seeding paddy flooding conditions. The seed pelleting method includes steps of: A, seed selection; B, seed sterilization: using trichloroisocyanuric acid or hydrogen peroxide; C, pelleting agent formulation preparation: preparing according to a mass ratio of clay, talcum powder and calcium peroxide; D, binder preparation: mixing polyvinyl alcohol with water to prepare a binder solution; E, pelleting: calculating and weighing ingredients in the pelleting agent formulation according to final pelleting multiple, and mixing well to obtain pelleted seeds; F, seed storage: air-drying, and vacuum-packaging; G, land preparation: adopting modes of land soaking, water tillage, land raking and land weeding for land preparation during wet direct seeding; H, seeding. The seed pelleting method is suitable for wet direct seeding of early, middle and late paddy, seed consumption is saved, germination rate and seedling quality of wet direct seeding paddy seeds under flooding conditions are improved remarkably, stress resistance of paddy seedlings is enhanced, and one-time seeding of full seedlings under the flooding conditions after wet direct seeding paddy seeding is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and more specifically relates to a seed pelletization method for promoting the sowing of whole seedlings under flooded conditions of wet direct-seeding rice, which is suitable for mechanical precision hole direct-seeding of early, middle and late rice in the wet direct-seeding system, There are various sowing methods such as direct seeding by plane, artificial sowing or drill sowing. Background technique [0002] Wet direct seeding of rice is a light and simplified high-efficiency planting mode. This mode has low labor intensity, can alleviate the contradiction of labor shortage in rural areas during busy farming seasons, and is more suitable for mechanization. However, the seeds float on the surface of the mud after sowing in wet direct seeding. If there is heavy rainfall, the seeds will gather in a small area, resulting in uneven and uneven emergence; With rotten seeds and buds, the e...

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Problems solved by technology

[0004] Aiming at the problems of low seedling emergence rate, uneven seedling emergence and irregular seedling emergence caused by flooding and heavy rain after wet direct seeding of rice, the purpose of the present invention is to provide a method to promote the process of sowing whole seedlings of wet direct seeding rice under flooding conditions. The unique seed pelleting method is suitable for early, middle and late wet direct seeding, and can be applied to various sowing methods such as mechanical precision hole direct seeding, airplane direct seeding, manual sowing or drill sowing, etc. This method significantly improves the quality of wet direct seeding rice seeds The germination rate and seedling quality under flooding conditions enhance the stress resistance of rice seedlings and promote the one-seeding whole seedlings of wet direct-seeding rice

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