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本研究探讨有机一无机肥不同配比对溪蜜柚果实粒化、裂瓣症、产量、土壤养分含量等的影响。结果表明,与单施无机肥相比,配施有机肥可有效地降低果实粒化程度,较大幅度提高土壤有机质含量,并有助于改善果实品质。其中,配施50%有机肥的处理还可明显提高产量。试验还表叽经平衡施肥,果园年年获得高产,并保持较高的土壤肥力和树体营养水平;同时,果实粒化程度呈逐年减轻趋势。作者推荐,林产100kg的红壤抽回;年株施纯氮1.5kg左右(有机氮占全氮量30%-50%)。石灰1.0-1.5kg.其元素比例N:P2O5:K2O:CaO:MgO为1.00:0.50~0.60:1.00~1.05:1.00-1.36:0.28。
This study was to investigate the effect of different organic-inorganic fertilizers on the granulation, lobed fractures, yield and soil nutrient content of Xianyu grapefruit. The results showed that, compared with the single application of inorganic fertilizers, the application of organic fertilizer can effectively reduce the degree of granulation of the fruit, greatly improve the soil organic matter content, and help to improve the fruit quality. Among them, with 50% organic fertilizer treatment can also significantly improve the yield. Test also table grumble by balanced fertilization, orchards get high yield year by year, and maintain high soil fertility and tree nutrient levels; the same time, the degree of granulation of the grain showed a decreasing trend year by year. The author recommends, 100kg of red soil in the forest pumping back; annual plant pure nitrogen about 1.5kg (organic nitrogen accounted for 30% -50% of total nitrogen). 1.0-1.5 kg of lime, and its element ratio N: P2O5: K2O: CaO: MgO is 1.00: 0.50-0.60: 1.00-1.05: 1.00-1.36: 0.28.