Pengaruh Leguminosa Cover Crop (LCC) Mucuna Bracteatapada Tiga Kemiringan Lahan Terhadap Sifat Kimia Tanah dan Perkembangan Akar Kelapa Sawit Belum Menghasilkan
Abstract: The purpose of this
study was to determine the effect of using LCC Mucuna bracteataon three of land
slope to soil chemical properties and root growth of immature oil palms. This
research conducted in PTPN V Unit Lubuk Dalam, Siak and analysis of soil chemistry
in the soil Laboratory Faculty of Agriculture University of Riau. This research
conductedjanuary to june 2016. The research used split plot design. The level
of land slope (K) as the main plot consists of: K1 = slope 2%, K2 = 7%, K3 =
13%. Mucuna bracteata(M) as the subplot consist of: M0 = cleaned Mucuna
bracteata and M1 = overgrown Mucuna bracteata. The variabels observed were soil
pH, organic-C, total-N, total-P, total-K, cation excharge capacity, base
saturation, root dry weight, root volume and root occupy. The results showed:
(1) the interaction between slope level and used of Mucuna bracteatadid not
effect all parameters of soil chemical properties and root growth; (2) at the
overgrown LCC Mucuna bracteata, soil pH, organic-C, total-N, total-P, total-K,
cation excharge capacity, exchangeable bases (Ca, Mg, Na dan K), base
saturation is more higher compared with the cleaned LCC Mucuna bracteataland;
(3) The different level of land slope (%) has
the different soil pH, organic-C, total-P, total-K, cation excharge
capacity. The more higher of the land slope (%) so soil pH, organic-C, total-P,
total-K, cation excharge capacity become lower; And (4) using of Mucuna
bracteata, slope level and the interaction between slope level and used of
Mucuna bracteatawas not effect toroot dry weight, root volume and root occupy.
Penulis: Ariyan Saputra, Wawan
Kode Jurnal: jppertaniandd170221
