VALIDATION OF COTTAM MODEL UNDER DIFFERENT SOWING DATES, ORIENTATION AND METHOD OF PLANTING CUM IRRIGATION APPLICATION
作者: R.P. YADAVS.S. MATHAUDA
刊名: International Journal of Agriculture Sciences, 2018, Vol.10 (12), pp.6477-6480
来源数据库: Bioinfo Publications
关键词: ModelCOTTAMValidationSowing dateOrientationPlanting method
原始语种摘要: A field experiment was conducted on cotton (F-846) with two sowing dates (April 26 and May 20) in main plot and combinations of two orientations (66.5cm x 30cm and 100cm x 20cm) and two methods of planting cum irrigation application (ridge-furrow and flat) in sub-plot during kharif 2000 at Punjab Agricultural University, Ludhiana. The ancillary and yield parameters were compared with the simulated output of COTTAM model for validation. The COTTAM model underestimated the maximum LAI by 2 to 8 percent under April 26 sowing and overestimated by 8 to 12 percent under May 20 sowing. The model estimated number of open bolls per plant within 69 to 86 percent of field observed values. The model predicted maximum boll size very close (97 to 100 percent) to that of field observed maximum boll size...
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关键词翻译
关键词翻译
  • sowing 播种
  • planting 绿化
  • cotton 
  • kharif 雨季
  • percent 百分率
  • predicted 预先计算的
  • yield 成品率
  • conditions 条件式
  • conducted 有陪同的
  • irrigation 灌溉