Soils in the Bulia micro watershed of Gorontalo province, Indonesia, and their quality assessment

Abstract

Ten representative pedons from the Bulia micro watershed of Gorontalo Province, Indonesia, were characterized and classified to determine its land quality (LQ) class. Angular blocky, sticky, plastic consistencies and a hard consistency prevailed in the soil structure. In the alluvial plains the soil texture is dominated by the clay fraction, while in the hills and volcanic mountains the sand fraction is dominated. The soils in the Bulia micro watershed also have acid to neutral reaction, with the range of very low to high OC (organic carbon) levels, the reserve of exchangeable bases was dominated by Ca2+ in two series patterns, namely: Ca2+ > Mg+ > Na+ > K+ and Ca2+ > Na+ > Mg+ > K+, cation exchange capacity (CEC) ranged from low to very high, and the base saturation varied from moderate to very high. The alluvial plain is represented by Inceptisol in P1 and Typic Humustepts (P7), also by Oxic Humustepts (P3), then Mollisol on P4 (Typic Argiudolls) and Typic Haplustolls (P6), Alfisol on P5 (Typic Paleustalfs). Entisol on P2 (Typic Ustipsamments) was found in volcanic mountains and P9 (Typic Paleustolls) P8 (Ultic Paleustalfs), P10 (Inceptic Haplustalfs) are typical of volcanic hills. On the alluvial plains the land was categorized as the LQ class II, III and IV, the volcanic mountains were the LQ class IV, while the land on the volcanic hills was categorized as the LQ class VI. River bank erosion on the land river terraces can be held by the manufacture of gabions, talud, cliff reinforcement plants and terraces. The soil temperatures and high clay content can be regulated by mulching and organic materials.

ANALISIS KEBUTUHAN AIR TANAMAN SELADA (Lactuca sativa L.) PADA INCEPTISOL DAN VERTISOL BERBASIS INTERNET OF THINGS (IoT)

“…Selada secara ilmiah dikenal sebagai Lactuca sativa L. merupakan komoditas hortikultura dengan prospek masa depan yang menjanjikan dan nilai pasar yang signifikan. Kombinasi beberapa faktor, termasuk meningkatnya pemahaman tentang pentingnya sayuran untuk kesehatan seseorang, terutama asupan vitamin dan mineral dalam sayuran telah meningkatkan permintaan sayuran di Indonesia (Nazaruddin, 2003).…”

Determination of water availability and long growth period of maize plant in Boalemo Regency, Indonesia

“…Furthermore, the provision ensures optimal plant growth and productivity [1,2]. Since maize plants have been cultivated for generations by farmers, specifically in Gorontalo Province, the local government has made the cultivation a superior regional commodity [3]. However, the trend of increasing the productivity still tends to fluctuate.…”

Analysis of degraded land suitability and regional comparative advantages for maize development in the Gorontalo sustainable agriculture areas, Indonesia

“…In 2001, Gorontalo Province announced Agropolitan as its flagship program, focusing on the superior commodity of maize (Nurdin et al, 2021a). This has led to the implementation of various programs and activities to increase the production and productivity of the crop.…”