【作者】 何盈； 蔡顺香； 何春梅； 罗涛；

【Author】 HE Ying, CAI Shun-xiang, HE Chun-mei, LUO Tao (Institute of Soil and Fertilizer,Fujian Academy of Agricultura1 Sciences,Fuzhou 350013,China)

【机构】 福建省农科院土壤肥料研究所；

【摘要】 采用盆栽法,研究了硫脲不同用量(0%、1%、3%、5%、7%)对菠菜生长、叶绿体色素含量、硝酸盐累积及土壤氮含量的影响。结果表明,不同硫脲用量对菠菜的单株重、株高和叶绿体色素含量均有提高;硫脲能明显的降低菠菜硝酸盐含量,且随着硫脲用量的增加,降低效果提高,其中硫脲用量为7%时,降低效果达极显著水平;硫脲对土壤硝态氮累积的抑制作用随硫脲用量的增加而增强,硫脲用量达7%时,抑制作用表现为极显著。更多还原

【Abstract】 A pot experiment was conducted to study the effects of different thiourea on the growth, content of photosynthetic pigments and nitrate accumulation of the spinach and soil nitrogen content. The results indicated that the single trap weight, height and content of photosynthetic pigments of the spinach increased with the rates of thiourea. And when 1% thiourea was used, nitrate content of the spinach decreased and wasn’t significance statistically. Nitrate content of the spinach decreased significantly when the thiourea level was between 3%-7%. When the thiourea level was between 1%-7%, inhibitor of soil N03--N accumulation with the rates of thiourea.When 3% and 5% thiourea was used, inhibitor showed significant. When 7% thiourea was used, inhibitor was great significant.更多还原