珍珠高粱高产栽培数学模型及其应用  

Mathematical model and its application of pearl sorghum high yield cultivation

作　　者：潘启寿 韦二兰 白晓清[2] 陆存春 

机构地区：[1]广西大化县农业局,广西大化530800 [2]广西大学电气工程学院,广西南宁530004

出　　处：《广西农业生物科学》2001年第3期165-168,共4页Journal of Guangxi Agricultural and Biological Science

摘　　要：应用“4 1 6— A”最优混合设计 ,对珍珠高粱进行试验研究 ,建立以珍珠高粱产量为目标函数 ,以种植密度、施 N量、施 P2 O5量、施 K2 O量为决策变量的高产栽培数学模型 ,用电子计算机进行寻优 ,获得珍珠高粱的最高和最佳栽培方案。 1 999年下半年在广西大化县进行了珍珠高粱示范 376hm2 ,平均产量 (干粒 ,下同 )为 4 62 4 .5 kg/hm2 ;验证 8.0 0 hm2最高产量为 5 833.5 1 kg/hm2 ;平均产量为 5 2 99.5 kg/hm2。珍珠高粱习惯 (常规 )栽培产量仅有 39645 kg/hm2。因此 ,每公顷珍珠高粱模式栽培比习惯栽培增产 660～1 335 .0 kg,增幅 1 6.6%～ 33.7% ,每公顷增加纯收入 30 4 .5～ 694 .Based on the study on sorghum experiment with the optimal compound design(416 A), a mathematical model was set, which contain the objective function of yield of pearl sorghum and the dicisive variations of planting density, quantity of fertilizer N, fertilizer P 2O 5 and fertilizer K 2O With the aid of computer statistics,the high yield and optimal cultivation plan was obtained 376hm 2 demostration trial was conducted in the late half year of 1999 in Dahua county, Guarngxi,and the average yield (dry grain, the same under) was 4 626 5 kg/hm 2 when 8 00 hm 2 trial was tested and Verified But yield was only 3 964 5 kg/hm 2 with the traditional cultivation Compared with the traditional cultivation, yield was increased by 660～1 335 0 kg/hm 2 rate increased by 16 6～33 7%, pure income increased by 304 5～694 5 yan/hm 2

关 键 词：珍珠高梁 416-A 最优混合设计 栽培 数学模型 高梁 

分 类 号：S514[农业科学—作物学]