不同施肥水平对芝麻干物质积累与分配的影响  

Effect of Fertilizer Application Rates on Dry Matter Accumulation and Distribution in Sesame

作　　者：赵莉[1] 汪强[1] 田东丰[1] 韩新峰[1] 

机构地区：[1]安徽省农科院作物所,合肥230031

出　　处：《中国农学通报》2014年第6期129-134,共6页Chinese Agricultural Science Bulletin

基　　金：国家芝麻产业技术体系南方栽培与土肥岗位"国家现代农业产业技术体系"(CARS-15-1-09)

摘　　要：以‘皖芝1号’和‘豫芝4号’为试验材料,研究不同施肥水平下芝麻干物质积累规律,指导芝麻生产实践。采用两因素(施肥、品种)随机区组设计,于芝麻不同生育期取样,测定各器官干物质积累量。芝麻干物质积累呈现慢-快-慢的变化趋势,各器官在不同施肥水平下干物质积累趋势基本相同。苗期到初花期干物质分配中心以茎叶为主,后期分配中心转向蒴果和籽粒。随着施肥量的增加干物质积累量增加,但是施肥量过高或过低都不利于芝麻获得高产。选择适宜品种,合理施肥,促进干物质的快速积累与分配是芝麻获得高产的关键。Two cultivars ＇ Wanzhi 1 ＇ and ＇ Yuzhi 4＇ were used to study the effect of fertilizer application rates on dry matter accumulation and distribution in sesame. The experiment was conducted on randomized block design with two factors, fertilization and cuhivar. The amount of dry accumulation on different organs of plant at the different growth stages was measured. The resuhs showed that the dry matter accumulation showed a trend of slow-fast-slow. Dry matter accumulation in different organs of the plant under different fertilizer rates were basically the same trend. With the increase of fertilizer application rate, the dry matter accumulation increased, but the high fertilizer rate or the low fertilizer rate was detrimental to sesame yield. Selecting suitable varieties, rational application of fertilizers and promoting dry matter accumulation and distribution was the key to gain high yield of sesame.

关 键 词：芝麻 施肥水平 品种 干物质积累与分配 

分 类 号：S147.22[农业科学—肥料学]