...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Canadian Journal of Plant Science >Agronomie and economic responses to integrated weed management systems and fungicide in a wheat-canola- barley-pea rotation
【24h】

Agronomie and economic responses to integrated weed management systems and fungicide in a wheat-canola- barley-pea rotation

机译：小麦-油菜-大麦-豌豆轮作对综合杂草管理系统和杀真菌剂的农艺和经济响应

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Changes in tillage intensity and herbicide use can influence the incidence of weeds, insects and diseases, crop yields and economic returns. We examined the effects of six integrated weed management systems (with varying combinations of tillage methods, seeding rate, seeding date, time when weed control was applied, and annual fungicide applications on pest incidence, grain yield and quality, and economic returns for a spring wheat (Triticum aestivum L.)-canola (Brassica napus L.)-barley (Hordeum vulgare L.)-pea (Pisum sativum L.) rotation in the Dark Brown soils of the Moist Mixed Grassland Ecoregion of Saskatchewan. Herbicide use intensity was reduced without a significant increase in weed biomass in five of the six systems in most crops and years. The complete elimination of herbicides in one system resulted in significant crop yield losses. Certain insects were more prevalent in the cropping systems with early planting dates. Zero tillage systems produced higher yields, and yields generally declined as tillage intensity increased. For all crops, the high herbicide-zero tillage system produced the highest yields, whereas the lowest yields were obtained in the no herbicide-high tillage system. Management method had minimal impact on seed quality. Application of fungicide generally increased yields of barley, wheat and pea, but the increases were not sufficient to recover fungicide cost. High herbicide-zero tillage, medium herbicide-zero tillage, and low herbicide-zero tillage systems produced the highest net return and no herbicide-high tillage system the lowest net return, under all grain price scenarios.
机译：耕作强度和除草剂使用的变化会影响杂草，病虫害的发生，作物产量和经济效益。我们研究了六个综合杂草管理系统的影响（耕作方法，播种速率，播种日期，施杂草控制的时间以及年度杀菌剂的不同组合对春季害虫发生率，谷物产量和质量以及经济回报的影响）萨斯喀彻温省湿润混合草原生态区的黑褐色土壤中的小麦（Triticum aestivum L。）-油菜（Brassica napus L。）-大麦（Hordeum vulgare L。）-豌豆（Pisum sativum L.）轮作，除草剂的使用强度为在大多数作物和年份中，六个系统中有五个减少了杂草，而杂草生物量却没有显着增加;一个系统中完全消除了除草剂，导致了作物产量的重大损失;某些害虫在播种期较早的作物中更普遍。耕作制度提高了产量，但随着耕作强度的增加，产量普遍下降;对于所有农作物，高除草剂零耕作制度产生的产量最高，而在非除草剂-高耕系统中，产量最低。管理方法对种子质量的影响最小。施用杀真菌剂通常可以提高大麦，小麦和豌豆的单产，但这种增加不足以收回杀真菌剂的成本。在所有谷物价格情景下，高除草剂零耕种，中除草剂零耕种和低除草剂零耕种制度产生的净收益最高，而没有除草剂高耕作制度的净收益最低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号