Respon Aplikasi Dosis Kompos dan Interval Penyiraman pada Pertumbuhan Bibit Kelapa Sawit (Elaeis Guineensis Jacq.)

. The objective of the study to determine the effective of compost dosage and watering interval on growth of oil palm seedling. Dosage of compost consist of 1.0, 1.5, 2.0 kg/polyibag and watering interval: every day, every 2 days, and every 3 days, watering with 1 liter of water for every seedeling with 5 kg soil/polybag. The result showed that compost dosage had signifficant effect on increasing of stem diameter palm seedling at 30, 60,90 after planting, broad of leaf at 30, 60, 90 after planting, length of root 90 days after planting, weight of fresh biomass, 90 days after planting. Growth of palm seedling best at 1.5 kg compost/polybag. Watering interval had significan effect on hight of palm seedling at 30, 60 and 90 days after planting, increasing of broad of leaf at 30 days after planting, length of root at 90 days after planting. The best growth of palm seedling found at watering interval every 3 days. There were significant interaction between compost dosage and watering interval on hight of palm seedling at 60 days after planting, increasing of palm stem diameter at 30, and 90 days after planting the best growth of palm seedling found at treatment combination 2 kg compost/polibeg and every 3 days watering interval

Effect of growth regulators on the growth and yield of ginger (Zingiber officinale Rosc.) under polyhouse condition

The experiment has been conducted to resolve the poor partitioning of dry matter towards rhizome by using plant growth regulators (PGRs). Therefore, two pot culture experiments were conducted during 2020-22 using the variety IISR Varada to investigate the effects of foliar application of PGRs (6-BAP, cycocel, GA3 and PBZ at five different concentrations viz. control, 50ppm, 100ppm,150ppm and 200ppm in three replications) on growth and yield. The experiment was laid out in Factorial CRD design under polyhouse condition. The results revealed that 6-BAP at 100ppm significantly increased the number of tillers, secondary rhizomes, tertiary rhizomes, length, diameter of rhizomes, and rhizome yield (322.3g/ plant) which is 240% more than the control