Effect of different ratios of nitrogen fertilizers on theGrowth and nutrition value of crabs in paddy field
范翠翠 吴朝霞；孙文涛；袁滢滢；张琦；张旋
Chinese Agricultural Science Bulletin . 2010, (19): 417 -422 .  DOI: 10.11924/j.issn.1000-6850.2010-1544