• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Journal of Agronomy >Management targets for continuously stocked mixed oat x annual ryegrass pasture in a no-till integrated crop-livestock system
【24h】

Management targets for continuously stocked mixed oat x annual ryegrass pasture in a no-till integrated crop-livestock system

机译：在免耕作物-畜牧综合系统中连续放养混合燕麦x黑麦草牧场的管理目标

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Feeding livestock with cover crops can improve the efficiency and sustainability of integrated crop-livestock systems under no-till. However, no-till systems are based on permanent soil cover by organic material, so grazing livestock can compete for soil cover. Hence, managing stocking rates during the grazing period of the cultivated forage species is a key factor to assure enough herbage mass for maintaining long-term sustainable no-till systems. In this context, the objective of this study was to determine sward management targets for a continuously stocked mixed oat (Avena strigosa) x annual ryegrass (Lolium multiflorum) pasture in rotation with soybean in a no-till integrated crop-livestock system to determine the optimum balance between animal production and herbage mass for soil cover. The effects of sward height management on animal performance and herbage mass covers were evaluated. Treatments corresponded to four sward heights: 10, 20, 30 and 40 cm, maintained throughout the experimental period through continuous stocking and variable stocking rate, plus a no-grazing control area. Treatments were arranged in a randomized complete block design with three replications. Herbage mass and animal performance increased linearly with sward height, but weight gain per hectare decreased. Grazing efficiency fitted to a quadratic regression and conversion efficiency a logarithmic model. Equilibrium between grazing and conversion efficiencies was reached on swards managed at 20 cm, indicating that this sward height provided enough herbage mass to allow both animal performance and no-till crop demand for soil cover
机译：用免耕作物喂养牲畜可以提高农作物－畜牧综合系统的效率和可持续性。但是，免耕系统是基于有机材料的永久土壤覆盖，因此放牧的牲畜可以竞争土壤覆盖。因此，在牧草栽培期间控制放养率是确保足够的牧草量以维持长期可持续免耕系统的关键因素。在这种情况下，本研究的目的是确定在免耕作物-畜牧综合系统中连续放养的混合燕麦（Avena strigosa）x一年生黑麦草（多年生黑麦草）与大豆轮作的草地管理目标。在动物生产和草料覆盖土壤之间达到最佳平衡。评估了草皮高度管理对动物生产性能和牧草覆盖量的影响。处理过程对应于四个草皮高度：10、20、30和40厘米，通过连续放养和可变放养率在整个实验期间保持不变，再加上无草控制区域。将治疗安排在随机完整区组设计中，重复三遍。牧草的质量和动物的性能随草皮高度的增加而线性增加，但每公顷的增重减少。放牧效率适合对数模型的二次回归和转化效率。在20厘米处管理的草地上，达到了放牧效率与转化效率之间的平衡，表明该草地高度提供了足够的牧草质量，既可以满足动物的生产性能，又可以耕作免耕作物

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