ENDANG DWI PURBAJANTI*, BUDI ADI KRISTANTO AND RIHADATUL FUNUN
Study Program of Agro-ecotechnology, Faculty of Animal and Agricultural Sciences, Diponegoro University,
Indonesia
*(e-mail : endang.purbajanti@live.undip.ac.id; Mobile : +628 56019 18955)
(Received : January 22, 2022; Accepted : March 14, 2022)
ABSTRACT
Nuts have a unique nutritional composition and are good sources of unsaturated fatty acids, dietary
fiber, minerals, vitamins and other bioactive compounds. This study aimed at determining the evaluation
of the administration of silica and zinc on the growth and yield of peanuts. The best plant height was
obtained in the treatment of 200 kg SiO2/ha and 7.5 kg compared to all treatments applied. The best
number of leaves was in the administration of silica 200 kg SiO2/ha with zinc 5 kg Zn/ha compared to
remaining treatments. The highest crop growth rate (CGR) was in the interaction between 150 kg SiO2/
ha and 5 kg Zn/ha (0.087 g/day). The highest pithy pod was the interaction between the treatment of 150 kg SiO2/ha and 5 kg Zn/ha (22 pieces). The highest chlorophyll-a was in the interaction between 200
kg SiO2/ha and 2.5 kg Zn/ha (0.216 mg/g leaf) compared to all remaining treatments. The highest pod
production was achieved by the interaction between 200 kg SiO2/ha and 2.5 kg Zn/ha (3.008 t/ha). The
highest yield index was achieved in the interaction between 200 kg SiO2/ha and 0 kg Zn/ha (0.43).
Key words : Peanuts, silicate, zinc, CGR, pod production