河西走廊灌区间作套种下甜菜规范化栽培技术研究

A Study on Standardized Culture of Sugarbeet Relay-Inter Cropping in the Irrigation Areas of Hexi Corridor

１９８９～１９９０年在甘肃省河西走廊灌区的３个县（市），研究了甜菜种植密度、氮、磷用量栽培因子对甜菜间作套种后的产质量及亩产糖全的影响。并建立了相应的实用数学模型，经计算机模拟综合进优得出了河西灌区甜菜小麦间作套种的栽培模式及主要技术规范。经大田生产验证，可获取亩产２５０～３６０ｋｇ小麦、２．５～３ｔ甜菜（含糖率１７％以上），本项研究为粮糖双丰收开辟了新途径。

The study on standardized culture of sugarbeet relay-intercropping was conducted in 3countics(municipality)in Hexi irrigation areas in 1989-1990.Effects of planting density,application of N and P_2O_5 and other culturing factors on the yield and quanlity ofsugarbeetrelay-intercropped with wheat were studied and several practical mathematicalmodles on sugarbeet root yield and beet sugar yield have been established, The planting pat-tem and main culturing standardization for wheat and sugarbeet relay-intercropping inHexi irrigation areas were abtained by computer simulatiolls,which had been verified in fieldproduction,gaining a yield of 250～350kg of wheat and 2～3t/mu of sugarbeet with sug-ar content 17 percent.This study breaks a new war for a bumper harvest of both grainand sugar.