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This study ascertained if the fertilizer policy of the Transformation Agenda; 2010-2015 made any difference in Nigerian farmers' fertilizer use rate and their revenue. It examined the fertilizer use rate by farmers before and during the policy period and, analyses the effect of the policy on the revenue of farmers before and during the policy period. A paired t-test was employed to examine the fertilizer use rate and revenue of farmers before and during the policy period. The result shows that the average fertilizer use rates during the policy period and before the policy period were 9.3kg/ha and 8.8kg/ha respectively with a difference of 0.5kg/ha of fertilizer used between the periods. It also shows that the average revenue of farmers during the policy period and before the policy period were N139,745.8 and N126,169.5, respectively with a difference of N 13,576.3 between the two periods. There was statistical difference between the quantities of fertilizers used by the farmers and their revenues before and during the policy period. Thus, indicating that the policy intervention actually made a difference in both the quantities of fertilizer used and the welfare of the farmers. Due to the fact that Nigeria is still using below recommended fertilizer quantities, the potential of applying more fertilizer is huge. Proper fertilizer usage can boost food production which will in turn affect farmers' revenue positively.

The study was carried out to analyse the effect of trade liberalization policies on agricultural output growth in Nigeria, using time series data from 1960-2014.The objectives were to; estimate the differences in agricultural output before and after trade liberalization period and estimate the long and short-run effect of agricultural trade policies on agricultural output in Nigeria. Data for the empirical study were sourced from various issues of the Central Bank of Nigeria (CBN) statistical bulletin and publications of the National Bureau of Statistics (NBS). Both descriptive and inferential statistics were used to analyze the data. The estimation procedure was the co-integration and error correction model. The analysis reveals that the mean agricultural output after trade liberalization (AGR GD2) was different from that of the pre-trade period (AGR GD1) and also the t-test result confirms that there exist a significant difference between agricultural output during the pre-trade and post-trade liberalization period given that the t cal (4.5146) was greater than the t crit (2.0484) at 5% level of significance. The long-run and short-run regression results shows that trade openness and exchange rate had a negative effect on agricultural output in the three models meaning that trade openness will lead to reduction in agricultural output both in the long and short-run. The study therefore recommended that monetary authorities should adopt policies that will reduce the volatility of the exchange rate. Also the institution of import quota could curb the negative effect of trade openness on agricultural output growth in Nigeria.

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