Tomato yield (Yt) with different treatments across the 3 years (t/ha).

Note: The values of Yt in three years are means of 3 replications. In the same column and in the same year, means followed by the same letter (a, b) do not differ significantly at the 5% level according to a LSD test. Each value is the mean ± SD (n = 3). Figures prior to ** were the F values, and ** mean significance at P≤0.01.Tomato yield (Yt) with different treatments across the 3 years (t/ha).