Optimizing fertilizer packages and soil amendments for corn with Chromolaena odorata liquid organic fertilizer

Result revealed that zeolite significantly increased soil pH. The 200 kg ha-1 PR + 100
kg ha-1 Urea treatment produced the highest LAI and corn yield, reaching 9.38 Mg ha-1 dry�shelled weight. The corn production exceeded the national average in Indonesia, which was only
5.8 tons per hectare. By applying 200 kg ha⁻¹ PR and 100 kg ha⁻¹ urea, along with 0 ml L⁻¹ LOF
for each application, the highest dry shelled corn yield reached 9.38 Mg ha⁻¹. It was not
significantly different from the yield obtained with the application of 150 kg ha⁻¹ zeolite, nor
from the yield achieved with 200 kg ha⁻¹ PR and 100 kg ha⁻¹ urea, which reached 8.54 Mg ha⁻¹.
Zeolite considerably raised the pH of the soil, according to data analysis using the F test and the
LSD test at five percent significance. The highest yield of corn (9.38 Mg ha-1 dry-shelled weight) and LAI were obtained with the 200 kg ha-1 PR + 100 kg ha-1 Urea treatment. The amount of grain produced was more than the 5.8 tons per hectare national average in Indonesia. The maximum dry shelled corn yield was achieved by applying 200 kg ha⁻¹ PR and 100 kg ha⁻¹ urea,with 0 ml L⁻¹ LOF for each treatment. It did not differ much from the yield of 8.54 mg ha⁻¹ that was produced with the application of 150 kg ha⁻¹ zeolite or from the yield obtained with 200 kg ha⁻¹ PR and 100 kg ha⁻¹ urea.