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Table 3

Fertilizer application scheme in Nigeria (in g of fertilizer per palm).

Years after planting Months Quantities of applied fertilizers Equivalent in g per palm of nutrients          
    Basal dressing fertilizer Treatment fertilization Basal dressing fertilization Experimental treatment fertilization
    NPK (3 × 15) Borax Kieserite Urea TSP K (KCl) Mg (kieserite)   NaCl N (34%) P2O5 (50%) K2O (60%) MgO (27%) B2O3 (11%) K2O (60%) MgO (27%)
              K 0 K 1 K 2 Mg 0 Mg 1 Mg 2 K0           K0 K1 K2 Mg0 Mg1 Mg2
1 June 500 0 0 0 0 0 0 0 0 0 0 0 75 75 75 0 0 0 0 0 0 0 0
July 0 10 150 0 0 0 0 0 0 0 0 0 0 0 0 40.5 1.1 0 0 0 0 0 0
October 750 0 0 0 0 0 0 0 0 0 0 0 112.5 112.5 112.5 0 0 0 0 0 0 0 0
2 April 0 20 0 500 0 0 0 0 0 0 0 0 170 0 0 0 2.2 0 0 0 0 0 0
May 0 0 0 0 500 0 200 400 0 150 300 0 0 250 0 0 0 0 120 240 0 40.5 81
October 0 0 0 500 0 0 300 600 0 0 0 0 170 0 0 0 0 0 180 360 0 0 0
3 May 0 20 0 0 0 0 400 800 0 300 600 0 0 0 0 0 2.2 0 240 480 0 81 162
October 0 0 0 0 0 0 600 1200 0 0 0 0 0 0 0 0 0 0 360 720 0 0 0
4 May 0 50 0 0 0 0 1500 3000 0 500 1000 500 0 0 0 0 5.5 0 900 1800 0 135 270
5 March 0 0 0 0 0 0 1500 3000 0 0 0 0 0 0 0 0 0 0 900 1800 0 0 0
April 0 0 0 0 0 0 0 0 0 500 1000 0 0 0 0 0 0 0 0 0 0 135 270
October 0 0 0 0 0 0 0 0 0 0 0 1000 0 0 0 0 0 0 0 0 0 0 0
6 March 0 0 0 0 0 0 1500 3000 0 0 0 0 0 0 0 0 0 0 900 1800 0 0 0
May 0 0 0 0 0 0 0 0 0 500 1000 500 0 0 0 0 0 0 0 0 0 135 270
October 0 0 0 0 0 0 0 0 0 250 500 500 0 0 0 0 0 0 0 0 0 67.5 135
7 May 0 0 0 0 0 0 1500 3000 0 0 0 0 0 0 0 0 0 0 900 1800 0 0 0
October 0 0 0 0 0 0 0 0 0 750 1500 0 0 0 0 0 0 0 0 0 0 202.5 405
8 March 0 0 0 0 0 0 1500 3000 0 0 0 0 0 0 0 0 0 0 900 1800 0 0 0
October 0 0 0 0 0 0 0 0 0 750 1500 0 0 0 0 0 0 0 0 0 0 202.5 405
Total 1250 100 150 1000 500 0 9000 18000 0 3700 7400 2500 527.5 437.5 187.5 40.5 11 0 5400 10800 0 999 1998

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