新疆天山中部台阶地区甜高粱种植密度与相关生育特征规律的研究  

Study on Sweet Sorghums Planting Density in Terraced Region of the Central Tianshan Mountain with Its Growth Characteristics

作　　者：张彦红[1,2] 石书兵[1] 叶凯[3] 魏彦宏[2] 

机构地区：[1]新疆农业大学农学院,乌鲁木齐830052 [2]新疆农业科学院拜城农业试验站,新疆拜城842300 [3]新疆农业科学院生物质能源研究所,乌鲁木齐830091

出　　处：《新疆农业科学》2013年第2期230-237,共8页Xinjiang Agricultural Sciences

基　　金：国家自然科学基金地区基金项目"新疆甜高粱糖分积累规律及糖分组成结构研究"(31060036);新疆维吾尔自治区自然科学基金项目"甜高粱茎秆糖分积累与蔗糖代谢相关酶活性变化研究"(2010211B27)

摘　　要：[目的]研究不同种植密度对能源甜高粱品系T601生长发育、各器官干物质积累动态及生物产量的影响。[方法]采用田间试验与室内分析的方法。[结果]不同种植密度下株高、叶龄、茎粗、叶+鞘、茎秆及单株干物质积累均存在差异,且生物产量受种植密度影响较大,不同密度生物产量存在极显著差异。[结论]综合甜高粱各性状分析,在混合肥总量为525 kg/hm^2的施肥水平下,种植密度为13.9×10~4株/hm^2时,干物质积累量较大,抗倒伏能力较强,且达到较高的生物产量。[ Objective ] The purpose of this experiment was to study the effect of different planting densities on the growth, the dry matter accumulation of each organ and the biomass of the new strain energy sweet sorghum ＂T601 ＂. [ Method] The field experiment was adopted in combination with in -house analysis. [ Result] There are differences in plant height, leaf age, stalk thickness, leaf ＋ leaf sheath, stem and single plant＇s dry matter accumulation, and its biomass is greatly influenced by the planting density. Ultra - significant difference is found in biomass of its different densities. [ Conclusion] Comprehensive analysis of sorghumg various characteristics shows that when the total amount of blended fertilizer is 525 kg/hm2 and the planting density is 139,000/hm~, dry matter accumulation reaches the maximum level, lodging resistance is the strongest, thus its biomass arriving at a high level.

关 键 词：甜高粱 种植密度 干物质积累 产量 

分 类 号：S514[农业科学—作物学] S501