The selenium content and selenium enriching technique of winter wheat in Hebei province were studied by means of field sampling, pot experiment, field testing combined with laboratory analysis.The results showed that the selenium content of winter wheat were between 0.010～0.222 mg ·kg-1 in Hebei province, of which 46.67 ％ of winter wheat lacking selenium, 35.00 ％ lacking selenium slightly, only 18.33 ％ of winter wheat with normal selenium content.The selenium content in wheat grain could be improved effectively by soil and foliar application of selenium fertilizer(Na2SeO3 ).Selenium soaking of wheat was only a supplementary measure.To produce selenium enriched wheat, appropriate soil application rate of selenium fertilizer were between 0.10～0.25 mg Se· kg-1.Foliar spray of selenium concentration 40 mg Se · L-1 was appropriate from wheat heading stage to early filling stage, with the fluid volume of 750 kg · hm-2.Under the soil and climatic conditions in Hebei province, soil application rate of selenium of 225～562.5 g · hm-2 and foliar spray of selenium 30 g ·hm-2 were recommended.
HebeiWinter wheatSelenium contentTechnique of enriched selenium
NETL
NSTL
维普
万方数据
