[STEM3] Research variable 2

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.1 Corn plant species

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.2 Fertilizer formula

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.3 Fertilizer amount in one fertilizing

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.4 Frequency of fertilizing

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.5 Corn ear size

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.6 Height of corn plant

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.7 Leave color

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.8 Sweetness of kernel

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.9 Soil type

• Independent variable

• Dependent variable

• Controlled variable

From the corn (Super Sweet species) planting experiment, this was done in three different seedbeds with three different formula fertilizers containing F-1, F-2 and F-3 (at the same using amount). The results show that the tested corn plants had differently growth, corn ear size, leave color and sweetness of kernel.

1.10 Seedbed size

• Independent variable

• Dependent variable

• Controlled variable