马铃薯新品种昭薯6号高产栽培的数学模型研究
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摘要
为探寻马铃薯新品种"昭薯6号"高产栽培技术,采用四因素五水平二次回归正交旋转组合设计,每个因子设5个水平,对影响昭薯6号高产的主要栽培因子进行研究。结果表明:各试验因子对产量的影响作用依次为栽培密度>施氮水平>施钾水平>施磷水平。提高栽培密度和合理施用氮磷肥是获得高产的技术关键。通过计算机模拟寻优,提出昭薯6号产量在52 500 kg/hm~2以上的栽培技术措施:栽培密度69 000～73 500塘/hm~2,氮磷钾施用量分别为纯N 240.0～285.0 kg/hm~2、P_2O_5 123.0～144.0 kg/hm~2、K_2O 408.0～432.0 kg/hm~2。
In order to explore the high-yield cultivation technology of the new potato variety Zhaoshu No.6, the quadric regression orthogonal rotation combination design of four factors and five levels was adopted, and five levels were set for each factor. The results showed that the effect of each experimental factor on the yield was in the order of nitrogen application level of cultivation density > nitrogen application level potassium application level > phosphorus application level. Increasing cultivation density and applying nitrogen and phosphate fertilizer rationally were the key technologies to obtain high yield. Through computer simulation and optimization, the cultivation technical measures for the yield of Zhaoshu No.6 above 52 500 kg/hm~2 were proposed: cultivation density 69 000-73 500 pond/hm~2, pure N 240.0-285.0 kg/hm~2, P_2O_5 123.0-144.0 kg/hm~2, K_2O 408.0-432.0 kg/hm~2, respectively.
In order to explore the high-yield cultivation technology of the new potato variety Zhaoshu No.6, the quadric regression orthogonal rotation combination design of four factors and five levels was adopted, and five levels were set for each factor. The results showed that the effect of each experimental factor on the yield was in the order of nitrogen application level of cultivation density > nitrogen application level potassium application level > phosphorus application level. Increasing cultivation density and applying nitrogen and phosphate fertilizer rationally were the key technologies to obtain high yield. Through computer simulation and optimization, the cultivation technical measures for the yield of Zhaoshu No.6 above 52 500 kg/hm~2 were proposed: cultivation density 69 000-73 500 pond/hm~2, pure N 240.0-285.0 kg/hm~2, P_2O_5 123.0-144.0 kg/hm~2, K_2O 408.0-432.0 kg/hm~2, respectively.
引文
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[3] 刘凌云,姚春光,卢丽丽,等.不同杀菌剂及组合对马铃薯晚疫病的防控效果分析[J].西南农业学报,2015,28(4):1646-1650.
[4] 宋晓梅,蒋太明,刘洪斌,等.基于“3414”田间试验的水稻施肥模型的研究:以重庆市合川区为例[J].西南大学学报(白然科学版),2010,32(9):94-99.
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