
 核桃樹(shù)枝條速長(zhǎng)期缺水會(huì)使新梢生長(zhǎng)受阻減慢,甚至提前停止生長(zhǎng),幼果發(fā)育期缺水會(huì)影響果實(shí)膨大,堅(jiān)果明顯變小,種仁發(fā)育期缺水會(huì)降低種仁的飽滿程度。甘肅各核桃產(chǎn)區(qū)經(jīng)常出現(xiàn)春旱,5~6月常常干旱少雨,此期間正值樹(shù)體迅速生長(zhǎng)期 (共 554 字) [閱讀本文] >>
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 核桃樹(shù)枝條速長(zhǎng)期缺水會(huì)使新梢生長(zhǎng)受阻減慢,甚至提前停止生長(zhǎng),幼果發(fā)育期缺水會(huì)影響果實(shí)膨大,堅(jiān)果明顯變小,種仁發(fā)育期缺水會(huì)降低種仁的飽滿程度。甘肅各核桃產(chǎn)區(qū)經(jīng)常出現(xiàn)春旱,5~6月常常干旱少雨,此期間正值樹(shù)體迅速生長(zhǎng)期 (共 554 字) [閱讀本文] >>