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Journal : Jurnal Agrotech

FAKTOR-FAKTOR YANG MEMPENGARUHI PRODUKSI TANAMAN PADI GOGO DI KABUPATEN MOROWALI Abas Abas; Hasmari Noer; If'all If'all
Jurnal Agrotech Vol 9 No 1 (2019)
Publisher : FAKULTAS PERTANIAN UNIVERSITAS ALKHAIRAAT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.586 KB) | DOI: 10.31970/agrotech.v9i1.29

Abstract

This study aims to determine and analyze the factors that affect the yield of gogo rice plants in Morowali District, Central Sulawesi Province. This research was conducted in Morowali District, Central Sulawesi Province. The method used in sampling in this study is simple randomly selected. In this simple random technique each member of the population has the same opportunity to become a sample. This study analyzes the function of results using multiple linear regression analysis. Variable identification is done by listing production factors that are thought to have an effect on the process of upland rice yields. On the factors of production the variables that are affected (dependent variable) are results. While the variables that are variable (independent) affect are the area of ​​land, seeds, fertilizers, pesticides and labor. The results showed that the factors of production of land area, seeds, labor, fertilizers, and pesticides jointly influence the yield of upland rice. Variable land area partially has a significant effect on upland rice yields, with the highest average yield obtained in land area of ​​≤ 0.50 ha (average 3.76 t / ha). Partial variables of seed, labor, fertilizer, and pesticide did not significantly influence the upland rice yield respectively.
POPULASI DAN TINGKAT SERANGAN SPODOPTERA FRUGIPERDA PADA TANAMAN JAGUNG DI DESA TULO KABUPATEN SIGI Arfan; If'all; Jumardin; Hasmari Noer; Sumarni
Jurnal Agrotech Vol 10 No 2 (2020)
Publisher : FAKULTAS PERTANIAN UNIVERSITAS ALKHAIRAAT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31970/agrotech.v10i2.54

Abstract

Spodoptera frugiperda is a new pest in Central Sulawesi attacks maize crops. It was reported in 2019, known in Sigi, Donggala, Touna, Bangga, Tolitoli, Buol, and Palu City Regencies. Also, this pest is spreading rapidly by threatening maize production in Central Sulawesi. This study aims to measure the population and intensity of Spodoptera frugiperda attacks on maizes in Tulo Village, Dolo Sub-district, Sigi Regency. The study, conducted from January to March 2020, used a survey method and selected sampling. Our location takes each plot measuring 2x2 m. Population observations were carried out by collecting larvae found in the sample plants. The attack's intensity was carried out by counting the number of leaves showing symptoms of an attack on the top leaves. Calculation of the proportion of attacks was carried out by the Davis method. The results showed that the highest S. frugiperda population at the age of 14 days after planting. The intensity of S. frugiperda attack on maize was relatively high at the age of 42 days after planting, with an average attack of 65.24%. Climatic data during this period, an average of 28.76-29.43 ℃ with air influence was 71.1-72%.