EFFECT OF SUPER SPARSE CULTIVATION ON HEAD MILLED RICE PERCENTAGE AND CHALKINESS IN HYBRID RICE VARIETIES IN THE EASTERN AND SOUTHERN DISTRICTS OF SICHUAN PROVINCE
XU Fu-Xian, ZHENG Jia-Kui, ZHU Yong-Chuan, WANG Gui-Xiong, Yang Da-Jin, LIU Kang
Chin J Plan Ecolo . 2004, (5): 686 -691 .  DOI: 10.17521/cjpe.2004.0092