Abstract: The plant-made seedling-growing tray cultivation technique is an effective way to improve maize yield and quality in China’s cold northern area. However, the corn seedling nursery carrier and tray cultivation technique has been proved poor in adaptability. After comparing several nursery carriers, a design for a plant-made seedling-growing tray that is suitable for maize transplantation was proposed in which rice straw was used as the primary raw material. The preparation method, processing and structural dimensions of the tray were investigated and designed, five types of plant-made seedling-growing trays with different formulations were proposed. The shear mechanical properties and the shear strength of the plant-made seedling-growing trays were tested to determine the shear force needed for cutting through trays prepared with increasing mass ratios of rice straw and the effect of the shearing rate on the shear strength. The results showed that at a shearing rate of 100 mm/min, the maximum shear force decreased gradually as the mass ratio of straw was increased and that the hardness of the tray decreased as its shear strength decreased. Under three shearing rates (100 mm/min, 200 mm/min and 500 mm/min) and a blade displacement of 10 mm, the shear force was the highest at the point at which the tray was cut through; the required shear force to cut through the tray then gradually decreased. Trays with the same straw composition showed no significant influence of shearing rate on the tray’s shear strength at shearing rates of 100 mm/min, 200 mm/min or 500 mm/min. This study describes a multi-tray, single-strip nursery carrier for use in plant-made seedling-growing tray cultivation and proposes a theoretical basis for the design of a rotary transplanting device, the key part of a maize plant-made seedling-growing tray transplanter. Keywords: maize seedling transplanting, seedling-nursery tray, preparation, shear force, shear strength, rice straw, mixing ratio DOI: 10.3965/j.ijabe.20160906.2222 Citation: Ma Y C, Zhang W, Wang C, Mao X, Zhang B, Wang H Y. Preparation of a seedling-growing tray made of rice straw for maize seedling transplantation and its shear mechanics test. Int J Agric & Biol Eng, 2016; 9(6): 44－55.
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机译：摘要：在北方寒冷地区，植物育苗盘栽培技术是提高玉米产量和品质的有效途径。但是，已经证明玉米幼苗育苗载体和托盘栽培技术的适应性差。在比较了几种育苗载体后，提出了一种以玉米秸秆为主要原料的适于玉米移植的植物育苗盘设计。对托盘的制备方法，工艺和结构尺寸进行了研究和设计，提出了五种不同配方的植物育苗盘。测试了植物制成的育苗盘的剪切机械性能和剪切强度，以确定切开随稻草质量比增加而制备的盘所需的剪切力，以及剪切速率对剪切强度的影响。结果表明，在剪切速率为100 mm / min时，最大剪切力随着秸秆质量比的增加而逐渐降低，而托盘的硬度随着剪切强度的降低而降低。在三种剪切速率（100毫米/分钟，200毫米/分钟和500毫米/分钟）下，刀片位移为10毫米时，剪切力在切割托盘时达到最高。切穿托盘所需的剪切力然后逐渐减小。具有相同吸管成分的托盘在剪切速率为100 mm / min，200 mm / min或500 mm / min时，剪切速率对托盘的剪切强度没有显着影响。这项研究描述了一种用于植物制苗盘栽培的多托盘，单条育苗载体，并为旋转移植装置的设计提供了理论基础，该装置是玉米植物育苗盘的关键部分托盘插秧机。关键词：玉米移栽，育苗盘，制备，剪切力，剪切强度，稻草，混合比DOI：10.3965 / j.ijabe.20160906.2222引文：马永昌，张伟，王丙，毛旭，张乙，王慧英。玉米秸秆稻秆育苗盘的制备及其剪切力学性能测试。国际农业与生物工程杂志，2016; 9（6）：44－55。
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