Abstract: ENTEC,abbreviation for ecological nitrogen technology ,which is compound fertilizer with nitrate inhibitorfrom BASF Germany,can reduce nitrogen application rate by less nitrate leaching and save labor in European for manycrops,but little experience in China maize production .In order to reduce nitrogen rate and save labor input in China maizeproduction,field experiment was carried out in Jilin and Hebei to investigate the effects of ENTEC on yield increase formaize at mainmaize production areas,and benefits and cost at each site were estimated thereafter .The results showed thatENTEC increased maize yields over traditional fertilizer in Jilin with percentage at 9 %, but kept the same yield of maizein Hebei .Rate of nitrogen of ENTEC applied was less than that of traditional fertilizer,and times of fertilizer applicationwere reduced ,which results in labor saving .Although cost of ENTEC was higher than traditional fertilizer,the benefit ofENTEC was also higher in Jilin which compensate for the higher cost of ENTEC input .In summary,that fertilize maizewith ENTEC was economical viable which offers a new perspective for maize nutrients management .

Key words: Stabilizedfertilizer, Agronomicalefficiency, Partialfertilizerproductivity

CLC Number: 

• S143.1