Kajian Unsur Hara Mikro Tanah Untuk Peningkatan Produksi Pangan pada Lahan Sawah di Kecamatan Penebel, Tabanan
Abstract: Assessment of Micro
Nutrient of Soil for Improving Food Production on Paddy Field in The District
of Penebel, Tabanan Research of soil micro nutrient was carried out on paddy
soil in district Penebel, Tabanan regency, starting July until October 2013,
which was conducted by soil survey and laboratory analysis. The experiment
consists of several stages such as the formation of the land unit based on the
compilation maps of soil type, geology and slope, obtained 11 land units. Each
unit taken some samples depending on the area, location and slope, so have got
50 soil samples. Soil samples were taken at a depth of 0- 20 cm. Further, the
content of micro nutrients Zn, Cu, Fe, Mn analyzed with EDTA extraction at Soil
laboratory, Faculty of Agriculture, Udayana University. In addition it also
analyzed of the soil macro nutrients content: total-N, available- P,
available-K, C- organic matter, soil pH and salinity. Soil analysis showed that
the micro nutrient content of Fe ranged from 59.672 to 66.382 ppm (classified
as moderate), Mn ranged from 11.960 to 33.786 ppm (relatively low), Cu ranged
from 5.426 to 23.204 ppm (very low to low), and Zn ranged from 1.818 to 9.058
ppm (very low to moderate). The paddy soil in the district Penebel, containing
moderate of micronutrients Fe content and Mn contain relatively low ; Cu content
are very low to low; and Zn content are mostly very low to low. While the
content of macro nutrient elements such as N and P are low to moderate, but the
content of K is very high. C-organic content classified as moderate to high,
and soil acidity is slightly acid soil. The limiting factors of rice production
were Zn, Cu and Mn. Fertilization of micro nutrients needs to increase rice
production in the district Penebel. To obtain suitable micro-nutrient
fertilizer dosage to increase rice yield in district Penebel, it is needs to be
done research of micro nutrients testing especially Zn, Cu, and Mn.
Penulis: A.A. NYOMAN SUPADMA,
I MADE ADNYANA, DAN I NYOMAN PUJA
Kode Jurnal: jppertaniandd130432
