PERTUMBUHAN DAN DAYA HASIL TUMPANG SARI JAGUNG (ZEA MAYS L.) DAN KACANG TANAH (ARACHIS HYPOGAEA L.) TERHADAP WAKTU DAN POSISI PEMANGKASAN JAGUNG
Abstrak: The purpose of the
research was to know the effect of time and topping position of corn and the
interaction between the factor on the growth and yield capacity of
intercropping corn and peanuts. This study was conducted since April to August,
2016 at experiment farm land Faculty of Agriculture Mulawarman University, in
Teluk Dalam village, Subdistrict Tenggarong Kutai Kartanegara. Factorial
experiment 3x3 was arranged in Randomized Complete Block Design (RCBD) with
three replications. The first factor was topping time of corn (W), in three
levels, namely 45 days after planting (DAP) (w1), 55 days after planting (DAP)
(w2), and 65 days after planting (w3). The second factor was the position of
topping corn (P), in three levels, namely topping all leaves below the cobs
(p1), topping of stalks above cobs (p2), and topping of tassel (p3). The
results oe the research showed that topping time of corn was significantly
different on dry seeds of corn per plot and dry seeds of corn per hectare, but it
was not significantly different on other variables. Treatment topping time 65
DAP (w3) resulted the highest dry seeds of corn per hectare, that is 2.67 Mg
ha-1 and dry seeds of peanuts per hectare, that is 0.59 Mg ha -1. The treatment
of topping position was significantly different on the length of cob without
husks, cob diameter, number of seeds per cobs, dry seeds of corn per plot and
per hectare, however it was not significantly different on other variables. The
highest dry seeds of corn per hectare obtained by treatment topping of tassel
(p3) that is 2.88 Mg ha-1 and the highest of results peanut seeds per hectare
obtained by treatment topping all leaves below the cobs (p1) that is 0.60 Mg
ha-1. The interaction between time and topping position of corn was
significantly different on diameter of cob, dry seeds of corn per plot and per
hectare, but it was not significantly different on other variables. The highest
dry seeds of corn per hectare obtained at interaction of topping time 45 days
after planting (DAP) and the topping of tassel (w1p3) i.e. 3.19 Mg ha-1 while the highest of dry seeds of peanuts per
hectare obtained at interaction of topping time 45 DAP and topping position all
leaves below the cobs (w1p1) i.e. 0.61 Mg ha-1. The treatment of topping of
tassel (p3) resulted the highest value of Land Equivalent Ratio (LER) is 1.65.
Penulis: Ema Susanti, Susylowati,
Hadi Pranoto
Kode Jurnal: jppertaniandd170688
