糠醛渣复混肥对制种甜高粱经济效益的影响

Effect of Furfural Compound Fertilizer of Economic Benefits on Seed Production of Sweet Sorghum

在甘肃省张掖市沙井镇的甜高粱制种基地上，采用田间试验方法，进行了糠醛渣复混肥对制种甜高粱经济效益的研究。结果表明：糠醛渣复混肥最佳配方比例为：糠醛渣0．4500：高粱专用肥0．4500：生物菌肥0．1000。经回归统计分析，糠醛渣复混肥最大利润施肥量为3．04t／hm^2，制种甜高粱理论产量为2．82t／hm^2。施用糠醛渣复混肥与传统化肥比较，制种甜高粱株高、茎粗、地上部分干重和根系干重分别增加6．39％、5．87％、5．26％和4．19％；穗粒数、穗粒重、百粒重和产量分别增加6．38％、4．17％、4．42％和4．04％：施肥利润和投资效率分别增加2390元／hm^2和0．40元／元。

The purpose was to research the effect of Furfural compound fertilizer of economic benefit on seed pro-duction of sweet sorghum, The field trials were carried on the seed production of sweet sorghum base in ShaJin town,Zhangye city, Gansu province. The results shown that： The optimum formula ratio of Furfural compound fertilizer was ： Furfural 0. 450 0, special fertilizer of Sorghum 0. 450 0, biological bacterial fertilizer 0. 100 0. After statistical regression, The maximum profit amount was 3.04 t/hm^2, Theoretical yield of seed production of sweet sorghum was 2. 82 t/hm^2. Compared Furfural compound fertilizer and traditional fertilizer, the plant height, stem diameter, tops dry weight and root dry weight increased 6. 39% ,5.87% ,5.26% and 4. 19%, re- spectively. The grain number, grain weight and 100 grain weight and yield increased 6. 38% ,4. 17% ,4. 42% and 4. 04%, respectively. Fertilization profits and investment efficiency increased 2 390 yuan/hm^2 和 0. 40 yuanfyuan.