SAINS TANAH - Journal of Soil Science and Agroclimatology, Vol 19, No 1 (2022)

Nurdin, Fauzan Zakaria, Mohammad A Azis, Yunnita Rahim, Rival Rahman, Mahmud Kasim

Department of Agrotechnology, Faculty of Agriculture, State University of Gorontalo, Gorontalo, Indonesia

Abstract

Coffee is a national strategic commodity that contributes to Indonesia’s foreign exchange, but its productivity remains low due to cultivation on low potential land. This study aimed to determine the land suitability of endemic liberica coffee using two different methods and formulate recommendations for land management in Pinogu Plateau. Thirteen land units were surveyed, and soil samples were collected and analyzed in the laboratory to identify the land characteristics. Land suitability classes (LSCs) were compared by limiting factor and parametric methods. Analysis using the limiting factor method showed that the actual LSCs for liberica coffee consisted of moderately suitable (S2) and marginally suitable (S3) classes. Efforts for improvement could increase the potential of LSC to became very suitable (S1) and S2 classes. Meanwhile, the assessment with the parametric method indicated that the LSC consisted of S1, S2, and S3 classes. These results revealed that the parametric method provides more realistic land characteristics than the limiting factor method. Land management II or the land that had a little limiting factor turned out to be more dominant with the recommendation of adding P and organic fertilizer.

Keywords: Land, suitability, coffee, liberica, endemic, Plateau, Pinogu

Scopus Q3 dan Sinta 1: https://doi.org/10.20961/stjssa.v19i1.56441

Jurnal Agercolere, 4(2), 2022: 44-53.

Warman Tialo, Muhammad Arief Azis, Nurdin

Universitas Negeri Gorontalo

Abstract

Waxy maize is a source of local food for the community so that it can achieve food security, but its availability is still low. In addition, the cultivation of waxy maize so far still relies on inorganic fertilizers that have the potential to endanger public health. The purpose of this study was to analyze the growth and production of waxy maize, as well as to determine the effectiveness of agronomy and economy by applying organic fertilizer in Bualo Village, Boalemo Regency. The data obtained were designed in a randomized block design consisting of 11 treatments and 3 replications, so there were 33 experimental units. The results showed that the application of organic fertilizer of as much as 2,000 kg.ha–1 was able to increase the growth and production of the best waxy maize. Organic fertilizers, both agronomic and economical were classified as effective in increasing waxy maize production.

Keywords: Agronomy, Economy, Growth, Maize, Production, Waxy.

Sinta 3: https://doi.org/10.37195/jac.v4i2.168

Jurnal Ecosolum, 11(1), 2022: 1-13. 

Nurdin, Nangsi Ismail, Fitriah S. Jamin

Universitas Negeri Gorontalo

Abstract

Information on land quality as the basis for land management in maize cultivation at the site level is very important, but generally not always available. Study aimed to determine the distribution pattern of nutrient retention and availability in Pilolaheya Village, Bone Bolango Regency. This study used soil survey and deskwork methods to analyze data of nutrient retention (organic C-OC, pH, base saturation-BS, cation exchange capacity-CEC), total N, P2O5, and K2O for nutrient availability. The result shows that the distribution pattern of nutrient retention in corn topose sequences for soil pH on the lower slopes, base saturation on the lower and middle slopes tended to increase with soil depth, while soil pH on the upper slopes, OC and BS on the upper slopes tended to be the opposite., while the soil pH on the middle slope, OC on the lower and middle slopes, and the CEC of all slopes tended to be irregular with the depth of the soil. The distribution pattern of nutrient availability for Total N on the lower and middle slopes, and P2O5 on all slopes tends to be irregular with soil depth, while the total N on the upper slope tends to decrease with soil depth, while the distribution pattern of K2O on the middle and upper slopes tends to be the same, but inversely proportional to the distribution pattern on the downslope.

Keywords: Distribution, retention, availability, nutrient, toposequence.

https://doi.org/10.20956/ecosolum.v11i1.19556

Sinta 4: https://journal.unhas.ac.id/index.php/ecosolum/article/view/19556

Jurnal Abdi Insani, 9(1), 2022: 219-228.

Nurdin, Suyono Dude

Program Studi Agroteknologi Universitas Negeri Gorontalo

Abstract

Iloponu Village has the potential for agrobiopharmaceutical development, but has not been developed optimally. The development of agrobiopharmaceuticals is not only beneficial for health but has economic value that can increase people's income. Biopharmaceutical plants such as eucalyptus have the potential to become land conservation plants. This service activity aims to conduct field observations of problems and alternative solutions by implementing participatory technology development and community development, as well as making persuasive and educational efforts to the community in the development of agrobiopharmaceuticals based on land conservation in Iloponu Village. This community service activity uses the following methods: (1) field observation, (2) participatory technology development, (3) community development through training and mentoring, (4) persuasively by jointly building bioprime holes, and (5) educative through the planting of eucalyptus plants together. The development of agrobiopharmaceuticals in the form of making local community medicinal gardens is carried out in locations with priorities for Dusun II, III and IV (priority 1) and Hamlet I (priority 2). Community knowledge and skills increased by more than 80%. Efforts to conserve land based on agrobiopharmaceuticals are carried out together with the community by making biopore holes and planting eucalyptus plants. Field observations help identify problems and set priorities for land conservation-based agrobiopharmaceutical development activities, while participatory technology development has resulted in local community medicine gardens and community development has increased the knowledge and skills of residents in agrobiopharmaceutical development. Persuasive efforts have been carried out by making biopore holes in the yard and agricultural land, while public education has been carried out by planting eucalyptus plants in Iloponu Village.

Keywords: Agrobiopharmaceuticals, eucalyptus plants, biopori, conservation

Sinta 4: https://doi.org/10.29303/abdiinsani.v9i1.504

Jurnal Agroteknotropika,  Volume 11 No. 1 (2022)

Hariyanto Kase1, Nurdin2, Nurmi2

1Alumni Program Studi Agroteknologi Fakultas Pertanian Universitas Negeri Gorontalo

2Dosen Program Studi Agroteknologi Fakultas Pertanian Universitas Negeri Gorontalo

Abstract

This research aims at finding out the response of corn plants, varieties of Motorikiki in several slope classes, and corn cropping patterns and figuring out the interaction between several slope classes and corn cropping patterns of corn plants, varieties of motorikiki. This research was conducted from April to August 2019 in Talumopatu Village, Mootilango Sub-district, Gorontalo Disticrt. The treatments employing split plot design and main plot comprising L1 0-8% (40x40), T1 (50x50 and 15x15 cm), T2 (75x75 and 20x20), T3 (100x100 and 20x20 cm), T4 (100x100 and 15x15 cm) are repeated three times to obtain 45 plot treatment . Data analysis ti tested using Duncan at significance level of 5%. Findings reveal that the slope classes of L3 15-25% with cropping pattern of T2 75x75 cm affect the growth and production of corn combined with peanut plants of 20 x 20 cm. there is also an interaction between the slope class treatments  of 15-25% and cropping patterns of T2 75 x 75 cm on the growth and production of corn plants.

https://ejurnal.ung.ac.id/index.php/JATT/article/view/15613