The two wettish powders of Bordeaux nutritional protective powder and Kocide were evidently effect on pH value, effective iron content and effective copper content of the calcareous soil.

• 三种不同的波尔多液营养保护剂以BNPP-Fe-Zn效果最好；能显著提高番茄不同生长期根茎叶中铁、锌和铜的含量；同时；成熟期番茄叶片中全铁、活性铁和全锌含量差异显著；与CK相比；分别提高了78.；7%25-104%25、65