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Journal : Mitra Sains

Damage of Clove Trees Caused by Stem Borer Attack (Nothopeus hemipterus) in Central Peling Subdistrict, Banggai Kepulauan District Kulendeng, Jeksen; Basir, Muhammad; Asrul, Asrul
Mitra Sains Vol 9 No 2 (2021): September
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2021.v9.i2.pp71-79

Abstract

Clove (Syzigum aromaticum L.) is a native Indonesian plant originating from the Maluku Islands. Until now, cloves have become an essential commodity to support the industry and as sources of farmers' income. An increase followed the increasing area of clove cultivation in problems caused by stem borer attack (Nothopeus Hemipterus). This research aims to obtain information about the magnitude of damage intensity and the extent of stem borer attack. This research was conducted in two village areas: Alakasing village and Solongan village in Central Peling Subdistrict of Banggai Kepulauan District for three months on July 3 - 18, 2017. The observations were carried out on ten plantations owned by farmers: five farms in Alakasing village and five farms in Solongan village. Each sample plot was observed 20 sample plants so that obtained 200 sample plants, the strata of each tree is devided. The highest pest attack area (Nothopeus hemipterus) is in Alakasing Village, plot sample I of the sixth observation is 75%, and the lowest pest attack area (Nothopeus hemipterus) is plot sample V of the sixth observation. Whereas in the observation area of the Solongan Village, the highest percentage of attack area in sample V of the sixth observation is 30% and the lowest percentage of pest attack area (Nothopeus hemipterus) sample plots I and IV respectively 20%. The percentage of damage intensity caused by clove stem borer (Nothopeus hemipterus) in the Alakasing village area was 7.56%, while the percentage of damage intensity in the Solongan Village area is 3.26%.
Status Hara Nitrogen, Fosfor, Kalium dan Tingkat Kesuburan Tanah Pada Tiga Penggunaan Lahan Berbeda di Kecamatan Dolo Kabupaten Sigi Lisa, Lisa; Basir, Muhammad; Hasanah, Uswah
Mitra Sains Vol 10 No 1 (2022): Maret
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2022.v10.i1.pp23-32

Abstract

This research was conducted to determine nutrient status and soil fertility levels in Dolo District, Sigi Regency, map the soil nutrient status and soil fertility levels in Dolo District, Sigi Regency and as a reference for recommendations for land management in accordance with nutrient status and fertility levels in the three uses. different lands in Dolo District, Sigi Regency. This research was conducted in Langaleso Village and Kabobona Village, Dolo District, Sigi Regency, taking soil samples on cocoa land, deep coconut land and dry land in Dolo District, Sigi Regency. This type of research is a survey method and the data is presented descriptively. By trying to conduct observational surveys and soil sampling by purposive sampling. Soil samples were taken from 3 types of land use, namely cocoa land (K), Kelapa Dalam land (P) and dry land (T). Soil samples were taken at a depth of 0 - 20 cm and 21 - 40 cm. Where each land use is taken at two different locations, each two points of soil sampling and composited so that a total of 12 soil samples are obtained. The results of the research showed that the nutrient status that became an obstacle in soil fertility in Dolo District, Sigi Regency was Soil Reaction (pH) slightly acidic, Cation Exchange Capacity (CEC), C-organic, Nitrogen (N), Phosphorus (P), Potassium ( K) is classified as moderate, and base saturation (KB) is low so that the level of soil fertility on coconut, cocoa and dry fields in Dolo District, Sigi Regency is moderate and has unhealthy/less fertile soil quality.
Identifikasi Kesuburan Lahan Dan Pendapatan Petani Pasca Bencana Alam Gempa Bumi Gufran, Gufran; Basir, Muhammad; Isrun, Isrun
Mitra Sains Vol 11 No 2 (2023): September
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2023.v11.i2.pp103-114

Abstract

Central Sulawesi's 2018 earthquake, liquefaction, and tsunami caused liquefaction in Palu City's Balaroa and Petobo neighbourhoods. Land surface changes affected agricultural land area and soil fertility, which can affect farmers' income. Soil fertility indicates its nutrient-providing capacity. This study aims to assess agricultural land fertility, farmer income, and the best ways to recover from natural disasters. This descriptive study included all Petobo farmers affected by the earthquake and liquefaction. Purposive sampling tested 25 respondents. The field survey collected soil samples at coordinate points. Twelve soil samples were taken from six points at 20 cm and 40 cm depths. The samples were analysed at Tadulako University's Environmental and Natural Resources Analysis Laboratory. The results showed that Petobo Village's liquefaction-affected and unaffected areas had low fertility due to low C-organic and Potassium content, which prevented plants from using soil nutrients. Low soil fertility reduces crop production. Farmers earn an average of Rp. 1,422,857 per hectare, up to Rp. 4,633,929 per season per hectare. To increase soil fertility, farmers can use compost, manure, crop residues like legume plant stover, rice straw, and chemical fertilisers according to dosage.
Karakteristik Mikoriza Pada Berbagai Lokasi Pertanaman Kakao Sulawesi Tengah Toana, Moh Rizqi C; Basir, Muhammad; Barus, Henry N
Mitra Sains Vol 6 No 1 (2018): Januari
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/ms26866579.2018.v6.i1.pp92-101

Abstract

The existence and diversity of mycorrhiza in nature can not be separated from the factors that influence it, such as temperature, light intensity, soil pH and soil nutrient content. The diversity of soil types that have different nutrient content is one of the factors that can influence the existence of mycorrhiza. The purpose of this research is to explain the relationship of mycorrhizal status and soil type characteristic to cocoa plantation area in Central Sulawesi. The location of soil sampling was done in 3 villages ie in the village of Rahmat, Palolo sub-district, Lemban Tongoa village sub district of Palolo, and Saloya village, Sindue sub-district. Analysis of soil physical-chemical properties was carried out in Soil Science Laboratory and mycorrhiza spore observation was conducted in Agronomy Laboratory of Agricultural Faculty of Tadulako University Palu. The research start in October 2016 up to february 2017. The result shows that the average of spores amount in Rahmat Village, Saloya Village and Lemban Tongoa Village is 88, 204 and 224. Root infection is 41.3%, 58.6% and 72.2%. The relationship of soil properties and mycorrhizal depend on the physical and chemical conditions of the soil which causes differences on mycorrhizal spores amount and root infections. Low nutrient of soil was founded high of spores amount and root infections.