Claim Missing Document
Check
Articles

Found 8 Documents
Search

RESPONS TANAMAN BAYAM MERAH (Amaranthus sp.) TERHADAP PEMBERIAN PUPUK SERTA SIFAT FISIK DAN KIMIA TANAHNYA Kogoya, Orinus; Purbopuspito, Joko; Rondonuwu, Jenny J.
COCOS Vol 2, No 6 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i6.25786

Abstract

ABSTRACT This study aims to determine the effect of compost, NPK and Urea fertilizer on the growth of Red Spinach (Amaranthus, sp.) Plants and the physical and chemical properties of the soil. which fertilizer is best for red spinach plants and for soil analysis is carried out at the Soil Physics Laboratory and Soil Chemistry and Soil Fertility, Faculty of Agriculture, Sam Ratulangi University, Manado. This research was conducted using the Completely Randomized Design Method (CRD), where R0 was the control, R1 chicken manure compost, R2 NPK, Urea R3, this research was carried out in 4 treatments and 3 to obtain 12 experimental plots / beds. The results of this study indicate that the land in the Manado City Pakowa Village has a sandy loam and clay texture which has a relatively fast permeability rate, and has a slightly acidic soil acidity to the availability of nutrients N, P, K and C-organic is relatively low. Kata Kunci : Bayam Merah, Pengaruh Pupuk, Fisik dan Kimia
PRODUKSI, SEKUESTRASI DAN SEBARAN KARBON KANGKUNG AIR (Ipomoea aquatica, Forsk. L.) PADA KEBUN TELAGA DI DESA KALASEY SATU R., Syamsiar A.; Purbopuspito, Joko; Rondonuwu, Jenny J.
COCOS Vol 1, No 2 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.14917

Abstract

ABSTRACT  Biomass production of water spinach is a photosynthetic carbon assimilation by Ipomoea aquatica, Forsk. L. in reducing carbon in the air.  Water spinach grown at cultivated ponds of Kalasey Satu village followed natural irrigation system. We determined this water spinach biomass production and its carbon sequestration.  Soils and leafy vegetable products were sampled from upstream (Block A) to downstream (Block C) in 4 replicates per block for 3 consecutive observations.  Soil bulk densities in Block A (0.33 g.cm-3) is significantly heavier that that in Block C (0.22 g.cm-3) and soil depth in Block C (96 cm) was significantly deeper than solum depth in Block B (61 cm). Carbon production in water spinach, however, were not significantly different among blocks during 3 observation times.  Carbon sequestration of 20 days interval is 1.21 kg C.ha-1 which is equivalent to 22.1 kg C.ha-1.y-1.  Farmers' income from carbon sequestration is about Rp 551.958,- ha-1.y-1 and equivalent to USD 42.46 ha-1.y-1.  Keywords:  Water spinach (Ipomoea aquatica, Forsk. L.), vegetable production, carbon sequestration and carbon stock distribution
RESPON TANAMAN SAWI HIJAU (BRASSICA JUNCEA L.) TERHADAP PEMBERIAN PUPUK ORGANIK DAN ANORGANIK DI KELURAHAN RURUKAN KECAMATAN TOMOHON TIMUR Ngantung, Jeanete A.B.; Rondonuwu, Jenny J.; Kawulusan, Rafli I.
EUGENIA Vol 24, No 1 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.24.1.2018.21652

Abstract

ABSTRACT This study aims to determine the effect of which combination of fertilizer doses is best for the growth of Mustard Plant (Brassica juncea L.). And the research was conducted in Kelurahan Rurukan Tomohon Timur Subdistrict Tomohon City. Soil analysis was conducted in Soil Chemistry and Soil Fertility Department of Soil Agricultural Faculty of Sam Ratulangi University of Manado.This study used a Completely Randomized Design (RAL) consisting of 7 treatment combinations and repeated as many as 4 (four) times to obtain 28 pot experiments. Each pot of the experiment contains 5 kg of soil.The results showed that soil mixture with various combinations of fertilizers had a significant effect on the height of the green mustard plant, the number of leaves of green mustard greens, and the fresh weight of the green mustard plant.The best combination of soil mixture with Urea, Sp36, and Compost fertilizer is 0.5 gram / pot Urea, 0.375 gram / pot Sp36, and 50 gram / pot compost.Keywords: urea fertilizer, Sp36 fertilizer, compost fertilizer
STATUS KESUBURAN KIMIA TANAH DI KECAMATAN MAPANGET KOTA MANADO Soleman, Nining; Rondonuwu, Jenny J.; Pakasi, Sandra
COCOS Vol 1, No 3 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24359

Abstract

ABSTRACT  The study aimed to determine the soil chemical fertility status in Mapanget District, Manado City. This research was conducted from January to April 2018. The research method used is the survey method, where soil samples are taken at six points based on land use. Nutrients analyzed were Nitrogen (Kjedhal Method), Phosphorus (Bray I Method), Potassium (Bray I Method), Organic C (Walkley and Black Method) and pH (Kjedhal Method). The data obtained were analyzed descriptively. The results showed that soil pH in the study location was in the range of 6.49 to 6.80, the elemental content of nitrogen was in the range of 0.15% to 0.24%, the content of phosphorus was in the range of 11.56 ppm to 23.16 ppm, the content of Potassium is in the range of 14.58% to 33.65%, and the C-organic content is in the range of 1.87% to 2.22%.  Keywords : Nitrogen, Phosphorus, Potassium, C-organic, pH
RESPONS PERTUMBUHAN KEMANGI (Ocimum sanctum L) TERHADAP PEMBERIAN PUPUK ORGANIK DAN ANORGANIK Gigir, Sendy F.; Rondonuwu, Jenny J.; Kumolontang, Wiesje J.N.; Kawulusan, Rafli I.
COCOS Vol 5, No 3 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i3.5977

Abstract

Abstract The study aims to look at and figure out how the basil plant responses to organic and inorganic fertilizer application on plant growth and development . Also to identify the needs of macro nutrients which provides good leverage for the growth and production of basil plants . The Methods of study was conducted by using a randomized block design with 6 treatment, A control with no fertilizer application , treatment B with organic matter ( manure ) and fertilizer N ( urea ) , P ( SP - 36 ) , and K ( KCL ) ; C treatment with N fertilizer ( urea ) , P ( SP - 36 ) , K ( KCl ) ; D treatment by administering organic matter ( manure ) and fertilizer P ( SP - 36 ) , K ( KCl ) ; Treatment of E with the provision of organic matter ( manure ) and fertilizer N ( urea ) , K ( KCl ) ; and treatment by administering F organic material ( manure ) , N fertilizer ( urea ) fertilizer P ( SP - 36 ) . This treatment was repeated 4 times . Fertilization treatment given compiled using minus one test , by making combinations between fertilizing compost , fertilizer N, P , and K by removing one of the elements of the four elements. The variables measured were plant height , number of branches and fresh weight . The results showed a response to the treatment plant fertilizer application . Macro nutrients nitrogen effect on plant growth Keywords : basil , Inorganic Fertilizer , Organic Fertilizer , Fertilizer Influence
STATUS UNSUR HARA DAN pH TANAH DI DESA SEA, KECAMATAN PINELENG KABUPATEN MINAHASA Kotu, Silwasty; Rondonuwu, Jenny J.; Pakasi, Sandra; Titah, Tilda
COCOS Vol 6, No 12 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i12.8542

Abstract

Abstract The study aims to determine the status of soil nutrients and pH in the village Sea, sub Pineleng Minahasa district. This research was conducted in January to April 2015 using a survey method, in which soil samples were taken by slope and land use. Soil samples were taken at five points at a depth of 0 to 40 cm and 40 cm larger. The variables measured were nitrogen (Kjedhal method), phosphorus (Bray I method), Potassium (Bray method I), C- organic (Walkley and Black method) and soil pH (pH meter). Research data analysis using descriptive analysis. The results showed that soil pH in the research sites is in the range of 6.29 to 6.48, the content of the element nitrogen is in the range of 0.12% to 0.27%), phosphorus content in the range of 8.60 ppm to 14.29 , potassium element content is in the range of 1.72 ppm to 11.95 ppm, and organic matter content of 1.52% to 3.17%. Keywords: C-organic, Phosphorus, Potassium, Nitrogen, pH
Identifikasi Keadaan Sifat Fisik dan Kimia Tanah pada Tanaman Cengkeh di Desa Tincep dan Kolongan Atas Kecamatan Sonder Dotulong, Jacky R.G.; Kumolontang, Wiesje J.N.; Kaunang, Djoni; Rondonuwu, Jenny J.
COCOS Vol 6, No 5 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i5.7475

Abstract

Abstract This study aimed to identify the state of physical and chemical properties of the soil on the Cloves plant in the village of Tincep and Kolongan Atas Subdistrict Sonder.  This study conducted using a survey method with their implementation as follows: the soil samples were taken at two locations is overgrown Cloves plant with good growth rates and less well, each location was taken four soil samples, two soil samples were taken at Cloves plant with good growth rates and another two soil samples were taken on Cloves plant with less well growth rates.  Soil sampling conducted by digging a minipit with size 50 x 50 x 50 cm were taken at the canopy boundary of Cloves plant and the soil samples were taken top layer (horizon A) and lower layers (horizon B) which is based on the effect of organic matter on the soil layer (A and B).  The parameters observed was physical properties of soil that is, texture, structure, and consistency; and chemical properties of soil that is, nitrogen total, phosphor available, potassium available, c-organic, and pH.  The results showed clove plants with good growth and less well the specified visually not affected by the state of chemical of soil, but is influenced by physical properties of soil, because on the Cloves plant which less well grow on the horizon B was found weathered material.  Keywords: Cloves, Physical and Chemical properties of soil, Growth, Weathered material
THE EFFECT OF ORGANIC FERTILIZING KIRINYUH (Chromolaena odorata L.) AND PHONSKA FERTILIZER AGAINST CHEMICAL PROPERTIES OF PLANTED TAILINGS SOIL RICE FIELD Anyo, Willens Christano; Sondakh, Tommy D.; Rondonuwu, Jenny J.; Ogie, Tommy B.
Jurnal Agroekoteknologi Terapan Vol 2, No 2 (2021): EDISI JULI-DESEMBER 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v2i2.35302

Abstract

This study aims to determine the effect of kirinyuh organic fertilizer and phonska fertilizer on changes in the properties of tailings soil and the growth and production of upland rice. Land tailings are taken from the location of the  wilayah pertambangan rakyat (WPR) in Tatelu Village, Dimembe District, North Minahasa Regency. And the research was carried out at the Green House, Faculty of Agriculture, Sam Ratulangi University. This study was designed using a completely randomized design (CRD) with a factorial pattern consisting of two factors, namely: Factor I is kirinyuh organic fertilizer (A) which consists of 4 (four) levels: A0 = 0g / polybag, A1 = 300g / polybag, A2 = 600g / polybag, A3 = 900g / polybag and Factor II which is Phonska Fertilizer (B) consisting of three levels: B0 = 0g / polybag, B1 = 1,5g / polybag, and B2 = 3g / polybag. Each poly bag is filled with soil up to 20 kg.Keywords:  Kirinyuh; Phonska; Land of Tailings.AbstrakPenelitian ini bertujuan untuk melihat pengaruh pemberian pupuk organik kirinyuh dan pupuk phonska terhadap perubahan sifat kimia tanah tailing dan pertumbuhan serta produksi padi ladang. Pengambilan Tanah Tailing diambil dari lokasi Wilayah Pertambangan Rakyat (WPR) di Desa Tatelu, Kecamatan Dimembe, Kabupaten Minahasa Utara. Dan Penelitian dilaksanakan di Rumah Kaca  Fakultas Pertanian Universitas Sam Ratulangi. Penelitian ini dirancang dengan menggunakan Rancangan Acak Lengkap (RAL) dengan pola faktorial yang terdiri dari dua faktor yaitu : Faktor I yakni pupuk organik kirinyuh (A) yang terdiri dari 4 (empat) taraf : A0 = 0g / polybag, A1 = 300g / polybag, A2 = 600g / polybag, A3 = 900g / polybag dan Faktor II yakni Pupuk Phonska (B) yang terdiri dari tiga taraf : B0 = 0g / polybag, B1 = 1,5g / polybag, dan B2 = 3g / polybag. Setiap polybag diisi tanah sampai seberat 20 kg.Kata Kunci:  Kirinyuh; Phonska; Tanah Tailing.