不同施肥方式对红壤旱地芝麻农艺性状及产量的影响

Effects of different fertilization modes on agronomic traits and yield of sesame in red soil dryland

  • 摘要: 【目的】探讨不同施肥方式对红壤旱地芝麻(夏和秋)的农艺性状、产量及产量构成因素的影响,为芝麻的轻简化栽培提供参考。【方法】采用随机区组设计,按肥料不同施用方法设:100%的肥料翻耕前施入(T1)、50%翻耕前和50%翻耕后施入(T2)、50%翻耕后和50%花期施入(T3)、50%翻耕后+30%苗期+20%花期施入(T4-CK)、50%生物有机肥和50%化肥翻耕前施入(T5)、50%生物有机肥和50%化肥翻耕后施入(T6)等6个处理,研究不同施肥技术对夏芝麻和秋芝麻主要农艺性状指标、产量及其产量构成因素等的影响。【结果】对夏芝麻而言,T2的主要农艺性状指标均高于对照T4,果轴长和单株干物质重较对照分别增加8.3%和12.5%。T2的产量(847.5 kg/ha)较其他处理增产4.2%~9.5%,效益较对照增加1640.0元/ha。对秋芝麻而言,T5处理的主要农艺性状指标均高于T4,芝麻果轴长和单株干物质重量较对照T4分别增加了4.5%和9.7%。T3和T6产量(666.0和691.5 kg/ha)分别较其他4个处理增产5.2%~17.5%和1.8%~22.0%,效益较对照T4分别增加86.2和690.0元/ha。【结论】夏芝麻适宜采用50%的翻耕前和50%翻耕后施入一次性施肥技术,而秋芝麻可以采用基肥+化肥的常规方法,也可以采用有机无机肥配合翻耕后一次性施用的方法。

     

    Abstract: ObjectiveEffects of different fertilization modes on agronomic traits , yield and yield components of sesame in red soil dryland were discussed to provide references for lightly simplified cultivation of sesame . MethodTo study the effects of different fertilization techniques on main agronomic traits ,yield and yield components of summer and autumn sesame , randomized block was designed including 6 treatments viz. , the 100% fertilizers before ploughing (T1),50% before ploughing and 50% after ploughing (T2),50% after ploughing and 50% flowering stage (T3),and 50% after ploughing + 30% in seedling stage + 20% flowering stage (T4),50% biological organic fertilizer and 50% chemical fertilizer before ploughing (T5),and 50% of biological organic fertilizer and 50% fertilizer after ploughing (T6). ResultRegarding summer sesame, T2 improved the major agronomic traits and especially increased capsule axis length per plant and dry matter weight by 8.3% and 12.5%, respectively. The yield of T2 (847.5 kg/ha) increased by 4.2% to 9.5% compared with other treatments and benefits of T2 increased by 1640.0 Yuan/ha compared with the control. For autumn sesame,main agronomic traits of T5 were better than those of T4 (the control). Capsule axis length and the dry matter weight per plant of T5 increased by 4.5% and 9.7% compared with T4 (the control). Compared with other treatments, the yield of T3 and T6(666.0 and 691.5 kg/ha)increased by 5.2% to 17.5% and 1.8%to 22.0%. And their benefits increased by 86.2 and 690.0 Yuan/ha. ConclusionTherefore,it is concluded that sperat-ed layers fertilization of 50% before ploughing and 50% after ploughing should be used for summer sesame. Either 50%fertilizer as base fertilizer and 50% fertilizer as flower fertilizer or all fertilizers (50% bio-organic fertilizer+50% fertil-izer) as base fertilizer after ploughing are suitable for autumn sesame.

     

/

返回文章
返回