Zhang Xiao-li, Meng Lin, Wang Qiu-jun, Luo Jia, Huang Qi-wei, Xu Yang-chun, Yang Xing-ming, Shen Qi-rong
Jiangsu Provincial Key Laboratory for Solid Organic Waste Utilization, Nanjing Agricultural University, Nanjing 210095, China.
Ying Yong Sheng Tai Xue Bao. 2009 Mar;20(3):624-30.
A field experiment was carried to study the effects of organic-inorganic mixed fertilizers on rice yield, nitrogen (N) use efficiency, soil N supply, and soil microbial diversity. Rapeseed cake compost (RCC), pig manure compost (PMC), and Chinese medicine residue compost (MRC) were mixed with chemical N, P and K fertilizers. All the treatments except CK received the same rate of N. The results showed that all N fertilizer application treatments had higher rice yield (7918.8-9449.2 kg x hm(-2)) than the control (6947.9 kg x hm(-2)). Compared with that of chemical fertilizers (CF) treatment (7918.8 kg x hm(-2)), the yield of the three organic-inorganic mixed fertilizers treatments ranged in 8532.0-9449.2 kg x hm(-2), and the increment was 7.7%-19.3%. Compared with treatment CF, the treatments of organic-inorganic mixed fertilizers were significantly higher in N accumulation, N transportation efficiency, N recovery rate, agronomic N use efficiency, and physiological N use efficiency. These mixed fertilizers treatments promoted rice N uptake and improved soil N supply, and thus, increased N use efficiency, compared with treatments CF and CK. Neighbor joining analysis indicated that soil bacterial communities in the five treatments could be classified into three categories, i.e., CF and CK, PMC and MRC, and RCC, implying that the application of exogenous organic materials could affect soil bacterial communities, while applying chemical fertilizers had little effect on them.
进行了一项田间试验，以研究有机无机混合肥料对水稻产量、氮（N）利用效率、土壤氮供应和土壤微生物多样性的影响。将菜籽饼堆肥（RCC）、猪粪堆肥（PMC）和中药渣堆肥（MRC）与化学氮、磷、钾肥混合。除对照（CK）外，所有处理的施氮量相同。结果表明，所有施氮处理的水稻产量（7918.8 - 9449.2 kg·hm⁻²）均高于对照（6947.9 kg·hm⁻²）。与化肥（CF）处理（7918.8 kg·hm⁻²）相比，三种有机无机混合肥料处理的产量在8532.0 - 9449.2 kg·hm⁻²之间，增幅为7.7% - 19.3%。与CF处理相比，有机无机混合肥料处理的氮积累量、氮转运效率、氮回收率、农学氮利用效率和生理氮利用效率均显著更高。与CF和CK处理相比，这些混合肥料处理促进了水稻对氮的吸收，改善了土壤氮供应，从而提高了氮利用效率。邻接法分析表明，五个处理中的土壤细菌群落可分为三类，即CF和CK、PMC和MRC以及RCC，这意味着外源有机物料的施用会影响土壤细菌群落，而施用化肥对其影响较小。
