A soilless board for rice seedling raising and its application in the field of rice soilless machine transplanting

Abstract

The invention belongs to the technical field of grain crop production, and relates to a rice seedling raising soilless board and application of the rice seedling raising soilless board in the field of rice soilless machine transplanting. The rice seedling raising soilless board comprises a seedling raising medium composed of rice husks and non-woven cloth, the rice husks serve as a basal layer, the non-woven cloth serves as a covering layer, and the surface of the rice husks is evenly covered with the non-woven cloth. The seedling raising medium is evenly and horizontally laid on a seedling raising plate, and the rice seedling raising soilless board is formed by the seedling raising medium and the seedling raising plate. The rice seedling raising soilless board is easily machined with the rice husks as a basic raw material and with the non-woven cloth used, the chemical method is not used, and production cost is low. The formed seedlings range from 3 m to 6 m in length after planting, the stopping frequency of a rice transplanter stops for replenishing seedlings is reduced, the machine transplanting efficiency is greatly improved, and the weight of the rice seedling raising soilless board is only about 1 / 5 that of a common nutrient soil seedling block. The rice seedling raising soilless board promotes rice seedling raising to develop in the factorization, intensification, simplification and industrialization direction, and ecological towns and new countryside building is accelerated.

Description

technical field [0001] The invention belongs to the technical field of grain crop production, and relates to a soilless board for rice seedling raising and the application of the soilless board for rice seedling raising in the field of soilless machine transplanting of rice. Background technique [0002] Rice is one of the most important food crops in the world, and more than half of the world's population uses rice as a staple food. In recent years, due to the acceleration of China's urbanization process and industrial restructuring, the rice production method has rapidly shifted to mechanized transplanting. At present, machine-transplanted rice mainly adopts seedling raising methods such as double-membrane seedling raising, floppy disk seedling raising and hard disk seedling raising. The seedling raising board mainly includes the following two types: [0003] 1. Traditional nutrient soil [0004] At present, the bed soil used for rice seedling raising is generally taken ...

AI Technical Summary

Problems solved by technology

[0008] The Chinese patent "Method for Raising Rice Seedlings without Soil and Dryness Using Rice Husk as Substrate" Patent No. 200410043613. Before sowing, it is necessary to soak the rice husk, filter water, mix with nutrients, and compact the operation steps." The operation process is complicated, the cost is high, and the management is complicated. The seedlings are easy to break, which can easily cause damage to the seedlings and affect the quality of machine transplanting

[0009] In addition, the current seedling-raising boards formed with soil or new substrates as seedling-raising media usually need to be supported by seedling-raising trays, while the traditional seedling-raising trays are 0.03m x 0.28m x 0.58m in size. The following problems have been produced: (1) the seedling tray after the seedling-raising plate formed by traditional soil is equipped with about 6kg weight, even the seedling-raising tray of the seedling-raising plate formed by carrying the new substrate also has 4-5kg, and the seedling soil preparation takes a lot of time and labor; (2 ) Due to the small size of traditional seedling trays, the number of seedling trays per unit area is large, and the seedling trays must be moved many times from sowing to planting. The larger the farm, the more labor it takes to transport; Shut down to refill the seedlings, the work efficiency is low

[0010] Although, Japanese scholar TASATA (1999) reported that the seedling raising board formed as seedling raising medium with non-woven fabric, compares the seedling raising board that traditional matrix forms, overcomes above many defects with non-woven fabric as seedling raising medium; But, test result shows that with Non-woven fabrics are used as the medium for seedling cultivation. When the machine is inserted into the field, the hole rate is high and the seedling damage rate reaches 30-50%. It is difficult to implement in actual production and is not conducive to large-scale mechanized production and application.

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