| dc.description.abstract | NURUL TRI RAHMADHANI: Determination of the value of plant coefficients of
several species of horticultural plant on inceptisol soil by composting, supervised
by SUMONO and DELIMA LAILAN SARI NASUTION.
The magnitude of evapotranspiration value of plant can be determined
based on the potential evaporation value and the plant coefficient for each species
from its growth period. This research was aimed to determine the plant coefficient
values of Pakcoy (Brassica rapa L.), Caisim (Brassica juncea L.), and Lettuce
(Lactuca sativa L.) on Inceptisol soil with the addition of compost.
The results showed that the soil texture of each planting medium was
sandy loam, with the ranges of organic materials content of 6,25-5,89%, the
ranges of porosity were 53,87-52,95%, moisture capacity for each plants (Pakcoy,
Caisim, and Lettuce) were 46,46%, 44,31%, and 47,87%, dry weight of each
plants (Pakcoy, Caisim, and Lettuce) were 75 gr, 85 gr, and 35 gr, and then the
value of the plant coefficient for Pakcoy, Caisim and Lettuce in the middle period
of growth (16-30 days) were 0,44; 0,60 and 0,50. As well as the value of the plant
coefficient of Pakcoy, Caisim and Lettuce in the final phase of growth
(31-45 days) were 0,30; 0,31 and 0,44. | en_US |
