摘要
采用二次通用旋转组合设计,通过1992年多点重复试验,研究了内蒙古后山半干旱偏旱区马铃薯经济产量与密度、碳铵施量和播期之间的关系及交互效应,并建立了块茎产量;商品薯率的数学模型。结果表明,各因素影响马铃薯块茎产量的顺序是密度>播期>施肥量。基本明确了在该区以丰产高效和高商品薯率为不同目的时,种植密度、碳铵施量和播期的最优组合,为大田生产提供了科学依据。
The binary univeral rotationary combination design was
adopted to study theeconomic yield and density of potatoes,relationship between the applied
rate ofNH4HCO3 and sowing time ad reciprocal effects of potatoes throung 1992 multiple-
pointrepeated experiments thereby to establish the mathematical model of tuber yields
andmarketing potato rate.The results indicated that the sequences of each factor affectingpotato
yields can be denity>sowing time>the amount of fertilizer application. It wasmade clear through
the establishment and analysis of potato tuber yields and marketingtuber rate that the optimal
combination of sowing density,the amount of NH4HCO3 ap- plied,and sowing time provided the
scientific basis for the field production with the dif-ferent objectives of achieving high tuber
yield and high marketing tuber rate.
出处
《干旱地区农业研究》
CSCD
北大核心
1994年第1期61-67,共7页
Agricultural Research in the Arid Areas
关键词
马铃薯
回归分析
半干旱区
高产
potato
density
the amount of NH4HCO3
sowing
time
tuber yield
marketing tuber rate
regression analysis