悬浮剂型种衣剂的悬浮稳定性和流动性

本文讨论了悬浮剂型种衣剂的悬浮稳定性和流动性。研究结果表明,悬浮性和流动性与原工的粒子大小、体系的粘度和触变性凝胶网络的形成相关。所得结论为工业生产优质种衣剂提供理论和实验依据。     

防重腐蚀涂层材料及其耐腐性能的试验研究

针对农业工程领域中的材料重腐蚀问题,研制了一种防重腐蚀高聚物涂层材料,进而对涂层材料的耐腐性能、力学性能、热性能进行了试验研究,分析了热动态条件对材料腐蚀速度的影响,获得了满意结果。     

Bending behavior of coated yarns

Cotton yarns were coated with a polymer solution to hold surface fibers to the yarn body, which caused fiber-fly generation during knitting process. The physical property of the coated yarn, especially a bending rigidity was investigated in order to evaluate the performance of the coated yarn during knitting. SEM images showing the surface condition of the coated yarn demonstrated that the thickness of a coating material increased as the concentration of the coating solution increased. The results of the bending rigidity measured using KES-FB2 system showed that the bending rigidity of the coated yarn increased as the concentration of the coating solution increased. The results also revealed the possibility that yarn coated with a low amount of coating material should be employed for further research of reducing fiber-fly generation during knitting process.     

Yarn hairiness affecting fluff generation

Fluff (lint, fiber fly) generation, especially related to yarn structure, was investigated. Research centered on the fiber length related to fluff generation during the knitting process. Short fiber length composing yarn structure was a main source of the fluff shedding. High quality spun yarn with longer length of fiber was recommended to the high speed knitting industry in order to reduce process troubles such as yarn breakage, etc. but the cost is doubtable to the manufacturers. A trial to reduce the fluff trouble by using chemicals to hold the short fiber on the surface of the yarn was suggested and the research showed a positive effect to the problem. However, another factors including a by-product of chemical residue and searching more feasible material need to be concerned for the future research.     

15%克·福·唑醇悬浮种衣剂芽后包衣对玉米幼苗的生理效应

研究了唑醇类种衣剂芽后包衣对玉米幼苗的生理效应。结果表明,用15%克·福·唑醇悬浮种衣剂芽后包衣处理对玉米幼苗无不良影响,对幼苗根系活力、根的过氧化物酶活性、幼苗叶片叶绿素含量、光合速率及叶肉细胞间隙CO2浓度均有不同程度的提高。以药种比1∶50芽后包衣效果最佳。     

仿生包衣装置对大豆发芽与苗期植株性状的影响

为了提高大豆种子的包衣质量,促进包衣种子的发芽与苗期生长,实现苗齐苗壮,增加产量。以黑农48大豆种子为供试材料,对仿生包衣装置处理和现有包衣装置处理的大豆种子进行单因素田间试验,以未包衣大豆种子为对照组CK,仿生包衣装置处理的大豆种子为处理1,现有包衣装置处理的大豆种子为处理2,测定大豆种子发芽情况和苗期植株性状,比较2种包衣装置的包衣效果。结果表明:处理1和处理2的大豆种子发芽指标和苗期植株性状指标均高于对照组CK,处理1较处理2的发芽指数增长20.21%,根鲜重增长11.26%,主根长增长11.15%,且处理1和处理2的发芽指数、根鲜重、主根长差异显著。仿生装置处理较正常包衣处理种子生长状况更好的原因为仿生搅拌叶片更能减少搅拌叶片对大豆种子种皮和胚的损伤,增加大豆包衣的均匀性,进而提高了种子的包衣质量。通过田间试验验证了仿生包衣装置较现有包衣装置在包衣效果上的优越性,研究结果可为包衣设备改进优化提供数据支持和实用参考。     

不同种衣剂对玉米丝黑穗病相对防效及产量的影响

本试验主要研究了不同种衣剂与玉米丝黑穗病发生之间的关系,结果表明,种植同一高感丝黑穗病的玉米品种,使用不同种衣剂,其防治效果和产量结果有明显差异。63％福·克·戊干粉种衣剂和80％福·克干粉种衣剂配套2％戊唑醇干粉种衣剂防治效果理想,防效达到93．37％～96．39％;20．2％吡·福·戊唑悬浮种衣剂和10．6％福·戊唑悬浮种衣剂防效达到89．16％～90．96％;25％福·克·萎悬浮种衣剂（黑盖）和15％黑戈种衣剂防效一般。     

种子包衣技术对水稻发芽率和苗期病害的影响

本文阐述使用水稻种衣剂培育秧苗可以有效控制苗床水分和湿度,同时能缓释农药和肥料,增强秧苗抗逆性。试验表明,种子包衣处理对水稻发芽率和发芽势无不良影响,且壮根、壮苗效果显著;同时能减少病害发生,保持旱育秧苗发根优势和分蘖优势,达到省工省时的目的。     

非树脂包膜型缓释肥的研究与展望

阐述了非树脂包膜缓释肥包括肥料包裹型、有机质包膜型的国内外研究进展,并指出了其发展中需要克服的瓶颈和问题。     

壳聚糖在食品保鲜中的应用

近年来,壳聚糖作为一种新型无毒无害的天然食品保鲜剂,被广泛应用在食品工业领域。该文主要介绍了壳聚糖的基本特征和性质、保鲜食品的作用机理以及壳聚糖单一涂膜和复合涂膜在食品保鲜中的应用。