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根据柑桔树体对土壤生态环境和营养元素的季节性需求变化特点,综合考虑各营养元素间的平衡、有机养分与无机养分之间的协调、土壤生物和土壤物理性状的改善,提出不同因子组合处理,进行了3年定位试验。结果表明:新型生态施肥技术,对桔园土壤生态环境和柑桔产量、品质有明显的效果,有效地提高了土壤有机质、全N、P、K和速效N、P、K含量,以速效P增幅最大,三年增26.92%~40.0%;除能提高所施用微量元素含量水平外,还提高土壤有效态Fe、Cu含量水平;土壤容重三年降低了0.04 g cm-3~0.10 g cm-3,总孔隙度增加10.4%~16.8%,通气孔隙增加19.9%~30.1%,全容水量增加7.0%~12.1%;有效地改善了柑桔的品质,增加了果实的单果重、可溶性固形物含量、可溶性糖含量以及Vc含量。
According to the seasonal changes of citrus trees on soil ecological environment and nutrient elements, considering the balance among nutrients, the coordination between organic nutrients and inorganic nutrients, the improvement of soil organisms and soil physical properties, different factors Combined treatment, conducted a 3-year positioning test. The results showed that the new ecological fertilization technology had obvious effect on the soil ecological environment and citrus yield and quality in the orange orchard, and effectively increased the contents of soil organic matter, total N, P, K and available N, P and K, and the available P Which increased by 26.92% ~ 40.0% in the three years. In addition to increasing the content of trace elements applied, it also increased the levels of available Fe and Cu in soils. The soil bulk density reduced 0.04 g cm-3-0.10 g cm- 3, the total porosity increased by 10.4% ~ 16.8%, the aeration pore increased by 19.9% ~ 30.1%, the total volume of water increased by 7.0% ~ 12.1%; effectively improved the quality of citrus, increased fruit weight per unit weight, soluble solids content , Soluble sugar content and Vc content.