ANALISIS KADAR HARA MAKRO DALAM TANAH PADA TANAMAN AGROFORESTRI DI DESA TAMBUN RAYA KALIMANTAN TENGAH
Abstract: Good and fertile
land is land that is able to provide nutrients in sufficient and balanced to be
absorbed by plants. It can be seen from the value of land productivity, one of
them by analyzing the concentration of nutrients contained in the land. The aim
is to find out how big the nutrient content of soil in the area of macro
agrisilvikultur and rambutan garden. This information is very important to take
steps selanbjutnya in order to maintain the productivity of cultivated land ..
Observations were made at 2 different locations namely in the area
planted with a combination of plant agrisilvikultur sengon, rambutan and other
agricultural crops and gardens rambutan. Soil sampling was done in purposive
sampling as much as 3 points of observation on each object of research with a
depth of 00-20 cm. The soil samples taken at each subsequent observation point
dikompositkan, meaning that one soil sample taken at some point with a distance
of 1.0 meter, mixed and stirred evenly, then take as much as 1 kg to be analyzed
in the laboratory. Those parameters were observed and the concentration of
element N, P, K, Ca and Mg. To find out the status of macro nutrient content of
N, P, K, Ca and Mg, the results of the analysis in the laboratory will be
compared with Soil Chemical Properties Assessment Criteria according to the
Central Institute for Soil Research (LPPT), Bogor. The results showed the soil
macro-nutrient content at the location of observation is relatively not much
different. The content of N and P in the soil under agro-forestry and
plantation crops are relatively high rambutan. While elements of K; Ca and low
Mg and plant species composition did not affect significantly to the content of
nutrients in the soil underneath. It is recommended to do additional elements
K, Ca and Mg in accordance with the needs of plants, in order to improve soil
fertility and optimal production results.
Penulis: Ahmad Yamani
Kode Jurnal: jpkehutanandd100016
