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. 2021 Oct 26;2021:6434309. doi: 10.1155/2021/6434309

Table 4.

The number of chemical fertilizers in mango cultivation in southern Vietnam.

Items Season 1 Season 2 Season 3
Non-coop. (n = 361) Coop. (n = 285) t -test Non-coop. (n = 415) Coop. (n = 262) t-test Non-coop. (n = 292) Coop. (n = 271) t -test
Root fertilizer
N (kg) 294.9 215.1 ∗∗ 251.0 189.0 ns 49.2 146.7 ∗∗
P (kg) 201.5 159.0 ns 190.0 130.0 ns 43.4 116.8
K (kg) 171.3 163.2 ns 163.1 161.5 ns 35.7 99.1 ∗∗
Microelements (gr) 27.9 35.7 ns 5.7 82.9 ns 0.5 40.9 ns
Leaf fertilizer (liquid) for flowering stimulation
N (kg) 8.0 7.5 ns 8.1 6.0 ∗∗ 6.4 4.6 ∗∗
P (kg) 2.8 1.0 ∗∗ 2.6 0.7 ∗∗∗ 2.5 0.5 ∗∗∗
K (kg) 13.1 13.1 ns 12.3 10.4 ns 8.5 8.7 ns
Microelements (gr) 58.4 37.5 ns 124.6 52.8 ∗∗∗ 110.5 61.2 ns

Source: Field Survey Data, 2018. Unit: kg/ha. Significant at the 10% level, ∗∗ significant at the 5% level, ∗∗∗ significant at the 1% level, and ns: nonsignificant.