PENDUGAAN KEBUTUHAN AIR TANAMAN DAN NILAI KOEFISIEN TANAMAN (Kc) KEDELAI (Glycine max (L) Merril) VARIETAS TANGGAMUS DENGAN METODE LYSIMETER
ABSTRACT: Production of
soybean is unbalanced. Increasing number
and need of the population is one causes of soybeansscarcity. One factor needs to be considered in soybean
cultivation is crop water requirement. This study aims todetermine the water
requirement of soybean by measuring evapotranspiration of soybean local
varieties directly by lysimeter (2x3x1) meters.
Field observations carried out at two lysimeters to measure crop
evapotranspiration (ETc) variety of Tanggamus and one plot planted with grass
as standard evapotranspiration (potential).
The results showed that total soybean crop water requirement (ETc) for
Tanggamus is 490.02 mm or 6.3 mm/hari and the total per-phase ETc is 5.4; 4.8;
6.7; 7.9 mm/hari. Soybean crop coefficient values (Kc) in the early growth phase,
active vegetative, fertilization or seed pod filling, and maturity for the
varieties Tanggamus is 0:48; 0.69; 0.9; 0.78.
Penulis: Tia Yuliawati,
Tumiar Katarina Manik,
R.A.Bustomi Rosadi
Kode Jurnal: jppertaniandd150014
