稀土微肥对番茄产量及叶片叶绿素含量的影响

Effects of Rare Earth Micro Fertiliazer on Chlorophy 11 Content of Leares and Yield of Tomato

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 chIorophy a. b contents and total content of tomato Ieaves had linear correlationswith spraying rare earth concentration (≤0. 08%), Most treatments chlorophy 11 a/b ratio waslower than ratio of the control. The tomato yield had square currilinear correlation with the rareearth concedtration. when the rare earth concentortion was 0.0679%,the maximum tomato yieldwas 2525kg1667m2.