黑麦覆盖作物管理方式对保护地棉花生长的影响

IF 0.7 Q4 AGRICULTURAL ENGINEERING
T. Kornecki
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引用次数: 0

摘要

在保护性农业中,覆盖作物必须产生足够的生物量来有效地覆盖土壤,并进行适当的管理以避免种植问题。生产者一直在询问适当的覆盖作物管理,包括适当的滚动覆盖作物方向(关于种植经济作物)和行清洁类型,以便在保护系统中取得成功。通过田间试验,评价了小麦黑麦不同滚动方向对棉花种植的影响。以棉花立地率、出苗率指数(ERI)和棉花产量为指标,对一种配有商业行清洁剂和定制残渣推挤器的免耕播种机进行了评价。选择阿拉巴马州的两个地点来考虑不同的气候和土壤条件。谷类黑麦用滚轮/卷曲剂和草甘膦终止。与不使用行清洁剂相比,使用任何一种经过测试的行清洁剂平行滚动种植棉花和不使用行清洁剂的未滚动残留物产生了最高的棉花林。在播种过程中,DawnTM带推垄器通过有效地将秸秆渣推到土壤表面,提高了棉花立地率,特别是对非滚黑麦。Stand与ERI高度相关(R2 = 0.99);与所有测试的行清洗器平行滚动时获得的ERI最快。最慢的ERI是垂直和对角方向,没有行清洁器。棉花产量主要取决于天气;然而,行清洁处理对产量有影响,不行清洁处理产量较低。直立黑麦和黎明黑麦由于包皮的原因在行清洁机上积累较多,需要更多的时间从播种机上清洁。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Rye Cover Crop Management Methods on Cotton Growth in a Conservation System
In conservation agriculture, cover crops must produce sufficient biomass for effective soil coverage and managed appropriately to avoid planting problems. Producers have been inquiring about proper cover crop management including suitable rolling cover crop directions (with respect to planting cash crop) and row cleaner type to be successful in a conservation system. A field experiment evaluated the effects of different rolling directions of cereal rye relative to cotton planting. A no-till planter with commercial row cleaners and a custom residue pusher was evaluated based on cotton stand, emergence rate index (ERI), and cotton yield. Two Alabama locations were chosen to account for different climatic and soil conditions. Cereal rye was terminated with a roller/crimper and glyphosate. Parallel rolling to planting cotton and non-rolled residue using any of the tested row cleaners generated the highest cotton stand when compared to no row cleaner. The DawnTM row cleaner with pusher had a higher cotton stand, especially for non-rolled rye, by effectively pushing residue against the soil surface while planting. Stand was highly correlated with ERI (R2 = 0.99); the fastest ERI was obtained with the parallel rolling with all tested row cleaners. The slowest ERI was with perpendicular and diagonal directions with no row-cleaner. Cotton yield mostly depended on weather; however, row-cleaner treatments had an effect on yield with a lower yield for no row-cleaner. Higher rye accumulation on row cleaners was for standing rye and the Dawn row cleaner due to wrapping and required more time to clean from the planter.
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来源期刊
Journal of cotton science
Journal of cotton science AGRICULTURAL ENGINEERING-
CiteScore
0.90
自引率
20.00%
发文量
0
期刊介绍: The multidisciplinary, refereed journal contains articles that improve our understanding of cotton science. Publications may be compilations of original research, syntheses, reviews, or notes on original research or new techniques or equipment.
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