TY  - GEN
ID  - eprints12321
UR  - http://digilib.unila.ac.id/12321/
A1  - 0614071020, ANDIKA GUSTAMA
Y1  - 2012/03/02/
N2  - Abstrak

Penelitian ini bertujuan untuk (1) menganalisis neraca air pada zona perakaran
tanaman cabai, (2) menentukan waktu surplus dan defisit air dengan prosedur
perhitungan neraca air, (3) menghitung proporsi curah hujan yang menjadi
limpasan permukaan pada lahan budidaya cabai, (4) menentukan besarnya
kebutuhan air dan saat pemberian air irigasi pertanaman cabai, serta (5)
mempelajari pengaruh mulsa jerami padi terhadap besarnya evapotranspirasi
tanaman dan limpasan permukaan.
Penelitian dilaksanakan di Laboratorium Lapang Terpadu Fakultas Pertanian
Universitas Lampung terhitung mulai tanggal 6 Februari ? 5 April 2011.
Pengamatan lapangan dilakukan terhadap 2 plot percobaan dengan perlakuan
mulsa jerami padi (plot A) dan tanpa mulsa sebagai kontrol (plot B) yang masingmasing dilengkapi dengan kolam penampungan air pada bagian hilirnya.
Hasil penelitian menunjukkan bahwa (1) kebutuhan air konsumtif (ETc) selama
penelitian pada plot lahan bermulsa jerami padi (133,85 mm) lebih kecil daripada
plot lahan tanpa mulsa (230,74 mm), (2) proporsi curah hujan yang menjadi
limpasan permukaan selama penelitian pada plot lahan bermulsa jerami padi
(0,11) lebih kecil daripada plot lahan tanpa mulsa (0,16), (3) penggunaan mulsa
jerami padi pada budidaya tanaman cabai mampu menekan kehilangan air akibat
evapotranspirasi dan meminimalkan terjadinya limpasan permukaan.
Kata kunci: neraca air, evapotranspirasi, limpasan permukaan



Abstract

The aims of the research were (1) to analyze the water balance in the root zone of
chili, (2) to determine the time of surplus and deficit of water with a water balance
calculation procedures, (3) to calculate the proportion of rainfall that becomes
surface runoff in chili cultivation of land, (4) to determine the amount of water
needs and the provision of irrigation water during cultivation, and (5) to study the
effect of rice straw mulch on the rate of crop evapotranspiration and surface
runoff.
Field experiment was conducted at the Integrated Field Laboratory College of
Agriculture, University of Lampung from 6 February to 5 April 2011. Field
observations carried out on two experimental plots with rice straw mulch
treatment (plot A) and without mulch as control (plot B) where are each equipped
with a water storage pond at the downstream.
The results showed that (1) the consumptive use (ETc) during the study on rice
straw mulched plot (133.85 mm) was lower than that of the plot with no mulch
(230.74 mm), (2) the proportion of rainfall that becomes runoff during the study
on rice straw mulched plot (0.11) was lower than that of the plot with no mulch
(0.16), (3) the use of rice straw mulch on chili can reduce the water loss due to
evapotranspiration and minimize surface runoff.
Keywords: water balance, evapotranspiration, surface runoff
TI  - MEMPELAJARI NERACA AIR (WATER BALANCE) PADA LAHAN
BUDIDAYA CABAI DI LABORATORIUM LAPANG TERPADU
UNIVERSITAS LAMPUNG
AV  - restricted
ER  -