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当前位置: 首页 > 文章 > 辽宁风沙土区连作年限对花生植株性状、产量及主要病害的影响 沈阳农业大学学报 2018,49 (4) 459-464
Position: Home > Articles > Effects of Continuous Cropping Years on Plant Trait, Yield and Disease Index of Peanuts in Sandy Soil Region of Liaoning Journal of Shenyang Agricultural University 2018,49 (4) 459-464

辽宁风沙土区连作年限对花生植株性状、产量及主要病害的影响

作  者：
黄玉茜;刘欣宇;林英;梁春浩;马京莹;韩晓日
关键词：
花生连作;风沙土;植株性状;产量;病情指数
摘  要：
为探讨连作年限对辽宁西北部风沙土区花生植株性状、产量及主要叶部病害发生规律的影响,通过田间小区试验,调查了正茬、连作2,3,4,5,10年对花生的农艺性状、产量及产量构成因素和病害发生情况的影响。结果表明:连作年限对花生主要农艺性状影响较大,连作10年后,主茎高、第一侧枝长和单株分枝数降低幅度最大,分别为25.4%,26.3%和30.8%。连作对花生产量及产量构成因素的影响明显,单株荚果数、单株饱果数、百果重、百仁重和产量均呈现逐年下降的趋势,与正茬相比,连作10年后降低幅度最大,分别为42.3%,43.4%,8.9%,17.3%和36.1%。连作后花生褐斑病和网斑病的病情指数呈现逐渐上升趋势,连作10年后病情指数达到最大值,分别为51.60和39.87。其中,连作3年和连作4年,花生褐斑病病情指数差异不显著;连作5年和连作10年,花生网斑病的病情指数也无显著性差异。花生连作对植株性状、产量及产量构成因素、主要叶部病害病情指数的影响较大,连作对花生生长发育有明显的抑制作用,连作年限越长抑制作用越大。实践中,为提高辽宁风沙土区花生产量应适当实行轮作倒茬。
译  名：
Effects of Continuous Cropping Years on Plant Trait, Yield and Disease Index of Peanuts in Sandy Soil Region of Liaoning
作  者：
HUANG Yu-qian;LIU Xin-yu;LIN Ying;LIANG Chun-hao;MA Jing-ying;HAN Xiao-ri;College of Land and Environment, Shenyang Agricultural University;Plant Protection Research Institute, Liaoning Academy of Agricultural Sciences;
关键词：
peanut continuous cropping;;aeolian soils;;plant trait;;yield;;disease index
摘  要：
In order to explore the effects of the continuous cropping years on the plant trait, yield and the occurrence rules of peanut leaf disease in sandy soil region, a field experiment was conducted in the condition of continuous cropping of 1 year, 2 years, 3 years, 4 years, 5 years and 10 years, respectively. The results showed that the continuous cropping years had great influence on the main agronomic characters of peanut. After continuous cropping of 10 years, the decrease degree of main stem height, first lateral branch length and single plant branch number were the largest, 25.4%, 26.3% and 30.8%, respectively. The effects of continuous cropping on peanut yield and the forming factors of yield were greater. The single plant pods, single plant plump, pods weight, nuts weight and yield all showed a trend of decreasing year by year. After continuous cropping 10 years,the decrease degrees of these indexes were largest compared with 1 year, 42.3%, 43.4%, 8.9%, 17.3% and 36.1%, respectively.The disease index of early leaf spot and web blotch gradually ascended and reached the highest point at 51.60 and 39.87 after continuous cropping 10 years. The disease indexes of early leaf spot were not significant between continuous cropping of 3 years and 4 years, and there were no significant differences in the disease indexes of web blotch between continuous cropping of5 years and 10 years. There were great effects of continuous cropping years on plant trait, yield and disease index of peanuts in sandy soil region of Liaoning. It had an obvious inhibitory effect on the growth development of the peanut, and the longer it was, the more inhibition it will took. In order to improve the yield of peanut in this region, the crop rotation should be carried out properly.

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