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长期施用化肥、有机肥或有机无机肥配施均能提高潮土和旱地红壤的原土复合量 ,有机无机肥配施还可以提高红壤性水稻土耕层的原土复合量 ,单施化肥对红壤性水稻土的原土复合量影响不大 ;长期施肥降低 3种土壤的原土复合度 ,但提高了土壤的增值复合量和增值复合度。施有机肥或有机无机肥配施土壤的增值复合量高于施化肥的土壤 ,但其增值复合度却低于施化肥的土壤。长期施肥还影响土壤有机无机复合体的粒径分级 ,施肥一般都可提高土壤中粘粒级和粉砂级复合体含量 ,降低细砂级复合体含量。长期施用有机肥或有机无机肥配施还可以提高 3种土壤中的G0 、G1和G2 等 3组复合体含量 ,并且有机无机肥配施可以促使G0 和G1组复合体向水稳性强的G2 组复合体转化。
Long-term application of chemical fertilizers, organic fertilizers or organic-inorganic fertilizers can increase native compound content of red soil in dryland and red soil. Combined application of organic and inorganic fertilizers can also increase native compound content of reddish paddy soil, The red soil paddy soil had little effect on the original soil compost amount. Long-term fertilization reduced the original soil compost degree of the three soil types, but increased the compound value of soil reclamation and compounding. Application of organic manure or organic and inorganic fertilizers to increase the amount of soil compound fertilizer is higher than the fertilization of soil, but the value added compound degree is lower than the fertilization of soil. Long-term fertilization also affects the particle size classification of soil organic-inorganic composites. Fertilization generally increases the content of clay-bound and silty-sand complex in soil and decreases the content of fine-grained complex. Long-term application of organic manure or organic-inorganic fertilizers could also increase the content of three complexes such as G0, G1 and G2 in three kinds of soils, and the combination of organic and inorganic fertilizers promoted the complex of G0 and G1 to be highly water-stable G2 group complex transformation.