Tandem type water-rolled seedling raising method for machine-transplanted rice

Abstract

The invention belongs to the field of rice seedling raising, and discloses a tandem type water-rolled seedling raising method for machine-transplanted rice. The tandem type water-rolled seedling raising method comprises the following steps: assembling of tandem type rice seedling trays, laying of a supporting medium, laying of a lining material, mechanical sowing, and accelerating germination in adarkening mode. According to the invention, nutrient soil (a matrix) adopted in a traditional method is completely abandoned; the length of rice seedling blocks can be changed according to the fieldsize of an outdoor hard ground rice seedling raising field; and the mass of a rice seedling block corresponding to each seedling tray is only 1/5 of the mass of the rice seedling block of conventionalnutrient soil. The rice seedling raising cost of the tandem type water-rolled seedling raising method is increased by 15.7% compared with the rice seedling raising cost of a traditional hard tray rice seedling raising method, and is saved by 54.1% compared with the rice seedling raising cost of a long-blanket type rice seedling raising method; the rice seedling raising labor investment of the tandem type water-rolled seedling raising method is saved by 76% compared with the rice seedling raising labor investment of the traditional hard tray rice seedling raising method, and is saved by 29.1%of the the rice seedling raising labor investment of the long-blanket type rice seedling raising method; and the mechanical transplanting efficiency of the tandem type water-rolled seedling raising method is improved by 13.9% compared with the mechanical transplanting efficiency of the traditional hard tray rice seedling raising method, and has no obvious difference from the mechanical transplanting efficiency of the long-blanket type rice seedling raising method.

Description

technical field [0001] The invention belongs to the field of seedling raising, and relates to a machine-transplanted rice tandem water rolling seedling raising method. Background technique [0002] The well-known rice mechanized transplanting and seedling raising technologies in China are mainly blanket seedling raising and pot seedling raising technologies, and the related technologies are mature. The existing seedling raising methods all use plastic seedling trays as the base, and use soil or new substrates as the medium for seedling raising, which has many inconveniences in operation. First, the seedling tray with seedling soil or matrix weighs about 5kg, and it is difficult to carry; second, agricultural operations such as raising seedlings, transporting seedlings, preparing seedling soil, mixing fertilizer, and storing require a lot of manpower, and it is easy to Seedling block and rice shoot cause damage; Its three, the seedling disc specification is 28cm * 58cm, and ...

AI Technical Summary

Problems solved by technology

In actual production, due to the influence of the seedling packing force, the rate of loose seedlings in transplanting small seedlings is high, which cannot meet the agricultural operations such as seedling lifting, seedling transportation, and machine transplanting, which seriously restricts the development of seedling transplanting.

At the same time, due to the low sowing amount of hybrid rice, the root packing force is low, so that the root system of the seedlings cannot be coiled into lumps, which has become a major problem that limits the popularization and application of hybrid rice machine transplanting.

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