MEI Shao-Hua-1, CHEN Xing-Guo-1, TIAN Jian-2, CHENG Ying-De-1, WU Hai-Ya-3, LIU Shi-Qing-2, CHEN Xin-Ping-2, KE Hong-Jin-2, ZHOU Zhong-Quan-4, ZHOU Zhi-Hua-4 . Influence of Sowing Rates and Nitrogen Application on Yield and Constitution Factors of Direct-sowing Rice Huanghuazhan[J]. China Rice, 2011 , 17(3) : 39 -42 . DOI: 10.3969/j.issn.1006-8082.2011.03.013