Sandcultureexperiment, electron microscopy technique were used to investigate the compound effects of nitrogen and zinc on nodule development and ultrastructure of white clover.
采用砂培试验和电子显微技术,研究了不同水平氮锌配施对白三叶草根瘤发育和超显微结构的影响。
2
The affects of Photosynthetic bacteria on burgeon of tomato through sandculture method on pigment, enzyme system of tomato and soil microbe through pot culture experiment were studied.