yield block irrigation density fertilizer 90 A control low N 95 A control low P 107 A control low NP 92 A control medium N 89 A control medium P 92 A control medium NP 81 A control high N 92 A control high P 93 A control high NP 80 A irrigated low N 87 A irrigated low P 100 A irrigated low NP 121 A irrigated medium N 110 A irrigated medium P 119 A irrigated medium NP 78 A irrigated high N 98 A irrigated high P 122 A irrigated high NP 83 B control low N 80 B control low P 95 B control low NP 98 B control medium N 98 B control medium P 106 B control medium NP 74 B control high N 81 B control high P 74 B control high NP 102 B irrigated low N 109 B irrigated low P 105 B irrigated low NP 99 B irrigated medium N 94 B irrigated medium P 123 B irrigated medium NP 136 B irrigated high N 133 B irrigated high P 132 B irrigated high NP 85 C control low N 88 C control low P 88 C control low NP 112 C control medium N 104 C control medium P 91 C control medium NP 82 C control high N 78 C control high P 94 C control high NP 60 C irrigated low N 104 C irrigated low P 114 C irrigated low NP 90 C irrigated medium N 118 C irrigated medium P 113 C irrigated medium NP 119 C irrigated high N 122 C irrigated high P 136 C irrigated high NP 86 D control low N 78 D control low P 89 D control low NP 79 D control medium N 86 D control medium P 87 D control medium NP 85 D control high N 89 D control high P 83 D control high NP 73 D irrigated low N 114 D irrigated low P 114 D irrigated low NP 109 D irrigated medium N 131 D irrigated medium P 126 D irrigated medium NP 116 D irrigated high N 136 D irrigated high P 133 D irrigated high NP