钾水平对百日草干物质积累及氮磷钾吸收与积累的影响
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摘要
以百日草为试材,采用盆栽试验,研究了不同供钾水平(0、100、200、300、400 mg/kg)对百日草干物质积累及氮、磷、钾吸收与积累的影响。结果表明:施钾有利于提高百日草干物质积累量,有利于提高地上部分和地下部分的氮、钾含量及氮、磷、钾积累量。百日草干物质积累量及氮、磷、钾积累量的变化规律一致,均随着施钾量的增加呈现先上升后下降的趋势,在施钾量为300 mg/kg时达到最大值,施钾量为400 mg/kg时又有所下降,但都显著高于对照。钾含量总体上随施钾量的增加而增加。在设置试验条件下,300 mg/kg为百日草最适钾肥用量。
Taking Zinnia elegans as the experimental material,the effects of different potassium(K)levels(0,100,200,300,400 mg/kg) on dry matter accumulation and nitrogen(N),phosphorus(P),and K uptake and accumulation of Zinnia elegans were studied by using pot experiment.The results showed that K application improved dry matter accumulation,contents of N,K in shoots and roots,accumulation of N,P,and K.The variations of dry matter accumulation and the accumulation of N,P,and K were consistent,they first increased and then declined with K levels raise,the indicators reached the highest in the treatment of 300 mg/kg,and then decreased when K level was 400 mg/kg,but these indexes at 400 mg/kg were still significantly higher than those of control.The content of K increased with the increase of K application.Under the condition of this experiment,the 300 mg/kg is the most appropriate K level for Zinnia elegans.
Taking Zinnia elegans as the experimental material,the effects of different potassium(K)levels(0,100,200,300,400 mg/kg) on dry matter accumulation and nitrogen(N),phosphorus(P),and K uptake and accumulation of Zinnia elegans were studied by using pot experiment.The results showed that K application improved dry matter accumulation,contents of N,K in shoots and roots,accumulation of N,P,and K.The variations of dry matter accumulation and the accumulation of N,P,and K were consistent,they first increased and then declined with K levels raise,the indicators reached the highest in the treatment of 300 mg/kg,and then decreased when K level was 400 mg/kg,but these indexes at 400 mg/kg were still significantly higher than those of control.The content of K increased with the increase of K application.Under the condition of this experiment,the 300 mg/kg is the most appropriate K level for Zinnia elegans.
引文
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[17] 屈会峰,赵护兵,刘吉飞,等.不同覆盖措施下旱地冬小麦的氮磷钾需求及其生理效率[J].植物营养与肥料学报,2017,23(4):874-882.
[18] 孙小花,谢亚萍,牛俊义,等.不同供钾水平对胡麻花后干物质转运分配及钾肥利用效率的影响[J].核农学报,2015,29(1):192-201.
[19] MOUSTAKAS N K,NTZANIS H.Dry matter accumulation and nutrient uptake in flue-cured tobacco(Nicotiana tabacum L.)[J].Field Crop Research,2005,94(1):1-13.
[2] 徐小玉,张凤银,张铃铃.青霉素对百日草种子萌发及幼苗生长的影响[J].北方园艺,2015(5):86-88.
[3] FARROKH A R,FARROKH A.Effect of nitrogen and potassium on yield,agronomy efficiency,physiological efficiency and recovery efficiency of nitrogen and potassium in flue cured tobacco[J].International Journal of Agriculture and Crop Sciences,2012,4(12):770-778.
[4] 张志勇,王清连,李召虎,等.缺钾对棉花幼苗根系生长的影响及其生理机制[J].作物学报,2009,35(4):718-723.
[5] 雷晶,郝艳淑,王晓丽,等.植物钾效率差异的营养生理及代谢机制研究进展[J].中国土壤与肥料,2014(1):1-5.
[6] 赵永平,钟娇娇,朱亚,等.不同供钾水平对金盏花光合特性和根系形态形成的影响[J].西南农业学报,2017,30(6):1304-1308.
[7] 李忠,江立庚,唐荣华,等.施钾量对花生光合特性、干物质积累及钾素利用效率的影响[J].贵州农业科学,2016,44(2):52-55.
[8] 陆志峰,任涛,鲁剑巍,等.缺钾油菜叶片光合速率下降的主导因子及其机理[J].植物营养与肥料学报,2016,22(1):122-131.
[9] 王再花,朱根发,操君喜,等.不同N、P、K水平施肥对春石斛营养生长和开花的影响[J].中国农学通报,2011,27(16):248-254.
[10] 卜晶晶,王素芳,张志勇,等.钾素对棉花幼苗器官生长和矿质元素吸收、分配及平衡性的影响[J].扬州大学学报(农业与生命科学版),2015,36(2):40-45.
[11] 汪顺义,李欢,史衍玺.不同施钾方式对甘薯钾素吸收及产量的影响[J].植物营养与肥料学报,2016,22(2):557-564.
[12] 潘艳花,马忠明,吕晓东,等.不同供钾水平对西瓜幼苗生长和根系形态的影响[J].中国生态农业学报,2012,20(5):536-541.
[13] 徐云,陈仲英,杜光辉,等.钾营养对大麻生长及钾吸收与利用效率的影响[J].中国农学通报,2015,31(27):132-136.
[14] 陈际型.钾素营养对水稻根系生长和养分吸收的影响[J].土壤学报,1997,34(2):182-188.
[15] 何刚,王朝辉,李富翠,等.地表覆盖对旱地小麦氮磷钾需求及生理效率的影响[J].中国农业科学,2016,49(9):1657-1671.
[16] 李素美,张娜,郭庆,等.根土空间对花生营养器官氮、磷、钾吸收积累变化的影响[J].华北农学报,2016,31(2):170-175.
[17] 屈会峰,赵护兵,刘吉飞,等.不同覆盖措施下旱地冬小麦的氮磷钾需求及其生理效率[J].植物营养与肥料学报,2017,23(4):874-882.
[18] 孙小花,谢亚萍,牛俊义,等.不同供钾水平对胡麻花后干物质转运分配及钾肥利用效率的影响[J].核农学报,2015,29(1):192-201.
[19] MOUSTAKAS N K,NTZANIS H.Dry matter accumulation and nutrient uptake in flue-cured tobacco(Nicotiana tabacum L.)[J].Field Crop Research,2005,94(1):1-13.