腐殖酸生态肥配方筛选及对制种甜高粱经济效益的影响

Formula Screening and Impact of Humic Acid Ecological Fertilizer on Economic Benefits of Seed Reproduction Sweet Sorghum

为了解决制种甜高粱产量低而不稳的瓶颈问题,在甘肃省酒泉市肃州区甜高粱制种基地,采用田间试验方法,进行了腐殖酸生态肥配方筛选及对制种甜高粱经济效益影响的研究。结果表明:不同因素对制种甜高粱产量影响的顺序是:高粱专用肥>腐殖酸铵>生物菌肥。腐殖酸生态肥配方比例为:腐殖酸铵0.45∶高粱专用肥0.45∶生物菌肥0.10。腐殖酸生态肥施用量与制种甜高粱农艺性状及经济性状呈正相关关系。施用腐殖酸生态肥与施用传统化肥比较,制种甜高粱穗粒数、穗粒重、百粒重、产量、施肥利润和投资效率分别增加6.38%、4.03%、4.42%、4.04%、2390元/hm^2和0.40元/元。

In order to solve the bottlenecks of low yield of seed reproduction sweet sorghum, the formulation screening and effects of humic acid ecological fertilizer on economic benefits of seed reproduction sorghum were studied. The results showed that the order of different factors that affected seed reproduction sweet sorghum production was： sorghum specific fertilizer 〉 humic acid ammonium 〉 bio-bacterial manure. Ratio of humic acid ecological fertilizer formula was： humic acid ammonium 0.45： sorghum specific fertilizer 0.45： bio-bacterial manure 0.10. There was positive relationship between application amount of humic acid ecological fertilizer and agronomic traits, and application amount was positive correlation with economic traits of seed reproduction sweet sorghum, too. The grain number and grain weight per spike, hundred kernel weight, yield and profits and investment efficiency of seed reproduction forage sorghum increased by 6.38%, 4.03%, 4.42%, 4.04%, 2390 yuan/ha and 0.40 yuan（RMB）/yuan, respectively, in comparison with conventional fertilization.