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果樹秋施基肥要做到好

時間:2020-03-28 瀏覽:3429次

果樹秋施基肥要做到好

內容介紹

施基肥改晚熟品種采收后的晚秋施和冬初施,為中熟品種采后施和晚熟品種采前施。中早熟品種,以8月下旬至9月中旬施入基肥更佳,盛果期樹以機械淺犁溝施為好,幼樹和初掛果樹以擴盤溝施為好;晚熟品種,9月施入基肥效果更佳。為方便操作,可在采果前人工穴施或溝施商品性袋裝顆粒肥,腐熟糞肥以采果后人工或機械翻施為宜。

長期過量施用化肥,會致使土壤質量低下,現階段按需施用化肥是一方面,合理利用有機資源,用有機肥替代部分化肥,實現有機無機相結合,用耕地內在養分替代外來化肥養分投入。

因為多數果樹屬深根性植物,在垂直方向上吸收根具有成層分布的特點,蘋果、梨等仁果類果樹根系的集中分布層一般為20~80cm土層,桃、杏、李、櫻桃等核果類為20~40cm土層。初果期樹5~30cm.土層為吸收根密集區,盛果期樹10~50cm土層為吸收根密集區,這就要求我們必須根據不同樹齡,把80%的肥料施在吸收根密集區。


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