• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Agronomy and Crop Science/Zeitschrift fur acker-und pflanzenbau >Effect of rice straw biochar and irrigation on growth, dry matter yield and radiation-use efficiency of maize grown on an Acrisol in Ghana
【24h】

Effect of rice straw biochar and irrigation on growth, dry matter yield and radiation-use efficiency of maize grown on an Acrisol in Ghana

机译：稻草生物炭和灌溉对加纳酰亚丙基酰丙酰山增长，干物质产量及辐射利用效率的影响

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

In order to determine whether the current low productivity associated with rainfed cultivation on degraded soils in Ghana can be improved by biochar amendment and irrigation, field experiments with maize were conducted over two seasons in 2017 and 2018. Rice straw biochar at rates of 0 t/ha (B-0), 15 t/ha (B-15) and 30 t/ha (B-30) was combined with irrigation regimes of full irrigation (I-100), deficit irrigation (I-60) and no irrigation (I-0). The I-100 treatment was irrigated to field capacity every 3-4 days according to time domain reflectometry measurements while the I-60 treatment received 60% of the irrigation amount given to I-100 but with the same irrigation frequency. The I-0 treatment was not irrigated. In both seasons, the B-30 treatment recorded the highest total dry matter yield (TDMY), intercepted photosynthetically active radiation (IPAR) and radiation-use efficiency (RUE) and these were significantly (p <= .05) higher than B-0 except for RUE in 2017. Irrigation regimes did not significantly affect TDMY, IPAR and RUE in 2017 but compared to I-100, I-0 significantly reduced TDMY, IPAR and RUE in the relatively dryer 2018 season. Measured ratio vegetation indices differentiated biochar treatments earlier in the 2018 season than during 2017 and increase of leaf chlorophyll content indices with biochar rate in both seasons indicated that biochar amendment improved nitrogen uptake. Our study demonstrated that rice straw biochar is capable of increasing TDMY, IPAR and RUE of maize grown on degraded soils in Ghana. The study further showed that TDMY, IPAR and RUE of deficit irrigated maize for two seasons were similar to the counterpart fully irrigated maize and may be a viable water management option for farmers in Ghana to save irrigation water resources.
机译：为了确定当前与加纳的降解土壤相关的当前与雨水培养相关的低生产率，可以通过生物炭修正和灌溉，2017年和2018年的两个季节进行玉米实验。稻草Biochar 0 T / HA（B-0），15t / ha（b-15）和30t / ha（b-30）与完整灌溉（I-100），赤字灌溉（I-60）的灌溉制度合并，没有灌溉（I-0）。根据时域反射测量测量测量每3-4天灌溉I-100治疗以每3-4天灌溉现场容量，而I-60治疗接收到I-100给出的60％，但具有相同的灌溉频率。 I-0治疗未被灌溉。在两个季节中，B-30治疗记录了最高的干物质产率（TDMY），截取的光合作动辐射（iPAR）和辐射使用效率（RUE）显着（P <= .05）高于B- 0除了2017年的rue。灌溉制度没有显着影响2017年的TDMY，iPar和rue，但与I-100相比，I-0在相对烘干机2018赛季中显着减少了TDMY，iPar和Rue。测量比率指数在2018季度之前的生物炭治疗比2017年早期分化，并且两种季节中BioChar率的叶片叶绿素含量指数的增加表明生物炭修正案改善了氮吸收。我们的研究表明，稻草Biochar能够增加在加纳退化的土壤上种植的TDMY，莫达和玉米芸香。该研究进一步表明，TDMY，IPAR和赤字灌溉玉米的暴政与两种季节的造型玉米相似，对手完全灌溉玉米，并且可能是加纳农民的可行水管理选择，以节省灌溉水资源。

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