论文部分内容阅读
番茄叶片叶绿素a、b含量及总量均与稀土喷施浓度（≤0．08％）呈一次正相关，且大部分处理叶绿素a／b比值低于对照．番茄产量与喷施稀土浓度呈二次曲线相关，理论上当喷施浓度为0．0679％时，番茄可获最高产量2525kg／667m2。
The contents of chlorophyll a, b and the total contents of tomato leaves were positively correlated with the concentration of rare earth spray (≤0.08%), and the chlorophyll a / b ratio of most of the treatments was lower than that of the control. The yield of tomato and the rare earth concentration were quadratic curve. In theory, when the spraying concentration was 0.0679%, the highest yield of tomato was 2525kg / 667m2.