期刊论文

中文

热带作物学报

1000-2561

2024

45

03

632-640

10.3969/j.issn.1000-2561.2024.03.021

No.CARS-11-HNSY:现代农业产业技术体系

本校为第一机构

通过研究不同氮素形态对华南 9 号(SC9)木薯生长及根际土壤养分、土壤酶活性的影响,为湖南地区木薯科学施肥提供理论依据.本试验设 CK(不施氮肥)、T1(酰胺态氮-尿素)、T2(铵态氮-硫酸铵)、T3(硝态氮-硝酸钙)4 个处理(土壤肥力水平一致,氮肥施用量均为 180 kg/hm2)研究不同氮素形态处理对木薯的株高、茎粗、土壤养分、土壤酶活性及产量与品质的影响.结果表明:不同氮素处理较CK处理均提高了木薯的株高、茎粗、产量与品质,T2 处理下木薯的株高、茎粗、产量、干物率、淀粉含量均最高,较CK处理分别显著提高 13.51%、32.24%、61.72%、6.44%、19.86%.施氮改变了根际土壤养分含量,T2 处理对木薯根际土壤...

The effects of different nitrogen forms on the growth,rhizosphere soil nutrients and soil enzyme activities of cassava variety Huanan 9(SC9)were studied to provide theoretical basis for the scientific fertilization of cassava in Hunan Province.CK(no nitrogen fertilizer),T1(amide nitrogen-urea),T2(ammonium nitrogen-ammonium sulfate)and T3(nitrate nitrogen-calcium nitrate)were set in the study.The level of soil fertility was the same,and the application rate of nitrogen fertilizer was 180 kg/hm2.Effects of different nitrogen forms on plant height,stem diameter,soil nutri-ents,soil enzyme activit...