AimsLodging is one of the main factors that reduces rice yields. The application of nitrogen (N) fertilizer at an appropriate ratio and plant growth regulators (PGR) can affect the relationship between stem lodging and yield.MethodsWe conducted a 2-year field experiment with three different N fertilizer ratios (N1, decreased panicle N rate; N2, medium panicle N rate; N3, increased panicle N rate) and two PGR (P1, paclobutrazol; P2, chitooligosaccharide) and a control (water).ResultsCompared with the control, both PGR significantly improved the lodging resistance and yield of rice. The pushing ...
