Guangyi Chen, Qiang Duan, Chaoyue Wu, Xingmei He, Mingming Hu, Congmei Li, Yuyuan Ouyang, Ligong Peng, Hong Yang, Qiuqiu Zhang, Qinggui Jiang, Yan Lan, Tian Li
Reasonable nitrogen (N) and potassium (K) application rates can effectively improve fertilizer use efficiency, rice yield and quality. A two-year field experiment was conducted with combined application of three N rates (135, 180, and 225 kg ha-1 , denoted as N1-N3) and four K rates (0, 90, 135, and 180 kg ha-1 , denoted as K0-K3) using super indica hybrid rice cultivar Yixiangyou (YXY) 2115 to explore the effects of co-application of N and K on rice growth and development. The results indicated that the combined application of N and K had significantly interactive effects on dry matter (DM) accumulation, nutrients absorption, N harvest index (NHI), K harvest index (KHI), spikelets per panicle and most rice quality indexes...
2024: Frontiers in Plant Science