Effects of Spraying Uniconazole on Morphological and Yield of Groups in Maize-soybean Strip Intercropping System STUDY ON THE INTEGRATED MANAGEMENT OF CITRUS CANKER The Impact of Different Ca2+ Spraying Period on Alleviating Pepper Injury Under the Waterlogging Stress The Impact of Different Ca2+ Spraying Period on Alleviating Pepper Injury Under the Waterlogging Stress