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The native NNFB communities responded to the anthropic interference and type of vegetation present in the area, altering the nodulation of the host plant cultivated in succession, for both number of nodules per plant and weight of these nodules (Figure 3A and 3B).
In non-anthropized arboreal native vegetation, NNFB density tends to be very low, because these are plants with low growth rate and the cycling of N from soil organic matter is able to supply most of the demand of these plants (Lima et al., 2009; Moreira & Siqueira, 2006).
Areas cultivated for a long period with grass crops can still maintain a NNFB community capable of establishing symbiosis with the host leguminous plant in succession, i.e., an effect of resilience, also observed by Lima et al.
These results suggest an interrelationship between soil use and vegetation cover on the native communities of symbiont microorganisms of plants, with reflex on growth of the host, especially regarding NNFB.
As shown in Table 1, had this household purchased the NNFB for two adults and two children in 2002, they would have experienced a monthly deficit of $246.68.
As shown in Table 2, purchasing the NNFB in 2002 would have left this household with a monthly deficit of $659.87.
household cleaning supplies Food Weekly NNFB cost for various age and sex groups.
To obtain the cost of the NNFB, data from the NS Participatory Food Costing (PFC) project in 2002, 2004/05, 2007, 2008 and 2010 were used.
As shown in Table 1, had this family purchased the NNFB in 2002, they would have experienced a monthly deficit of $116.55.
As shown in Table 2, purchasing the NNFB in 2002 would have left this family with a monthly deficit of $112.01.