促芽肥对黄华占再生季农艺性状及产量的影响
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摘要
为探讨促芽肥对再生稻再生季农艺性状和产量形成的影响,以黄华占为试验材料,尿素作为氮肥进行小区试验。结果表明,在施等量发苗肥(尿素225 kg/hm~2)的情况下,随促芽肥施用量(尿素0、75、150、225、300 kg/hm~2)的增加,黄华占再生季的产量、株高、穗长、成穗率和最终再生率增加,每穗粒数和结实率先增后减,千粒重无明显变化;促芽肥用量与再生季产量、单位面积穗数呈显著正相关,促芽肥用量为300 kg/hm~2时,黄华占再生季产量最高,为4 633.8 kg/hm~2,比不施促芽肥的处理增产22.69%,达极显著水平。
A field experiment was carried out to explore the effects of bud fertilizer on agronomic traits and yield formation of ratoon rice,using Huanghuazhan as material,urea as nitrogen fertilizer.The results showed that:in the application of the same seedling fer-tilizer(urea 225 kg/hm~2)conditions,with the increase of the amount of bud fertilizer,the yield,plant height,ear length,spike rate and final regeneration rate of Huanghuazhan were increased in the regeneration season,and the grains per panicle and seed setting rate were increased first and then decreased,but 1 000-grain weight had no obvious change.There were significant positive correla-tion between the amount of bud fertilizer and the yield and effective panicles of Ratoon rice.When bud fertilizer is 300 kg/hm~2,the yield of ratoon rice was the highest(4 633.8 kg/hm~2),and increased by 22.69% compared with no bud fertilizer treatment.
A field experiment was carried out to explore the effects of bud fertilizer on agronomic traits and yield formation of ratoon rice,using Huanghuazhan as material,urea as nitrogen fertilizer.The results showed that:in the application of the same seedling fer-tilizer(urea 225 kg/hm~2)conditions,with the increase of the amount of bud fertilizer,the yield,plant height,ear length,spike rate and final regeneration rate of Huanghuazhan were increased in the regeneration season,and the grains per panicle and seed setting rate were increased first and then decreased,but 1 000-grain weight had no obvious change.There were significant positive correla-tion between the amount of bud fertilizer and the yield and effective panicles of Ratoon rice.When bud fertilizer is 300 kg/hm~2,the yield of ratoon rice was the highest(4 633.8 kg/hm~2),and increased by 22.69% compared with no bud fertilizer treatment.
引文
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[2]刘国华,邓化冰,陈立云.中稻头季稻与再生稻的品质比较研究[J].杂交水稻,2002,17(1):45–47.
[3]向昌国,卓儒洞,李文芳.两系杂交稻培矮64S/E32头季稻与再生稻米质比较[J].杂交水稻,2000,15(3):37.
[4]林文雄,陈鸿飞,张志兴,等.再生稻产量形成的生理生态特性与关键栽培技术的研究与展望[J].中国生态农业学报,2015(4):392-401.
[5]周红英.再生稻轻简化高产栽培技术及其生理机制研究[D].武汉:华中农业大学,2012.
[6]任天举,肖长明,李贤勇,等.杂交中稻、再生稻两季增产的施肥技术研究[J].西南农业学报,2001,14(1):55-60.
[7]刘正忠.再生稻头季和中稻肥料利用率的比较与应用研究[J].中国农学通报,2013,29(36):205-209.
[8]俞道标,张燕,赵雅静,等.低桩机割再生稻氮肥施用技术研究[J].中国农学通报,2013,29(36):210-214.
[9]徐富贤,熊洪,朱永川,等.促芽肥施用时期对不同源库类型杂交中稻再生力的影响[J].杂交水稻,2010,15(3):57-63.
[10]林燕,邓学东,吕泽林.促芽肥施用时间与施肥量对再生稻的影响[J].农技服务,2015(4):93-94.
[11]何花榕,房贤涛,谢祖钦,等.不同氮钾施用量对再生稻产量及其构成因素的影响[J].福建农业学报,2016,31(7):699-703.
[12]程芳华.不同施氮水平催芽肥对欣荣优华占机收再生稻产量的影响[J].福建稻麦科技,2016,34(3):33-35.