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Deanne A. Kojoh
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RESPONS PERTUMBUHAN DAN PRODUKSI PADI SAWAH METODE SRI ( SYSTEM OF RICE INTENSIFICATION ) TERHADAP PEMBERIAN PUPUK ORGANIK DAN ANORGANIK Andrew Paat; Jeanne M. Paulus; Doortje M.F. Sumampow; Deanne A. Kojoh
COCOS Vol. 6 No. 6 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i6.8044

Abstract

ABSTRACTThis research aims to study the response of growth and production paddy rice methods sri (system of rice intensification) toward granting the organic and inorganic fertilizer that implemented in the village of Tara-Tara II, subdistrict tomohon west for 5 months start from march to august 2013. This study uses a randomized block design group (RAK) and the faktor the meticulous is a kind of organic fertilizers combined with the treatment of inorganik fertilizers (NPK) consists above P0 = 100 % NPK, P1 = organic fertilizers market waste + 40% NPK, P2 = organic fertilizers plant calliandra + 40% NPK, P3 = organik fertilizers rice straw + 40% NPK, P4 = organic fertilizers mixture + 40% NPK.awarding Organic and inorganic fertilizer give influence the growth and production paddy rice methods SRI (System of Rice Intensification). treatment p3 is the best results high toward rice plants with a value of 96.7, but not significantly different with treatment P1, P2, and P4. the influence most well toward the number of produktive tillers and the persentage of grain pithy/ panicles by value 96,58%. Treatment p3 derive the best results in a variable number of grain / panicle with a value of 234.0, but not significantly different with treatment P1 and P2. treatment P4 is the best result toward weight 1000 grain of dry grain harvest with a value of 28.24 grams, although not significantly different with treatment P1, P2, and P3. on variables outcome dry grain harvest the / plot, the best result is the treatment P3 with a value of 8.0 kg, although not significantly different from P2 treatment.keywords: Paddy rice, SRI (System of Rice Intensification), organic fertilizers and inorganic fertilizers.
RESPONS PRODUKSI TANAMAN JAGUNG (Zea mays L.) TERHADAP PEMANGKASAN DAUN BAGIAN BAWAH Christian T. Rompas; Selvie Tumbelaka; Deanne A. Kojoh
COCOS Vol. 10 No. 4 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.23408

Abstract

ABSTRACT The purpose of this research was to examine the response of the maize production towards lower leaves pruning. This research was conducted in Malalayang Satu Timur, Manado City, North Sulawesi in the period of March to July 2018. This research was arranged in a Randomized Block Design consisting of three treatments, namely (P1 = No trimming, P2 = Trimming 3 Lower Leaves, P3 = Trimming 5 Lower Leaves). The results indicated that lower leaves pruning on maize has no effect towards the diameter and length of cob, number of seeds per cob weighing to 1000 seeds, as well as the seed weight per cob. Lower leaves pruning is ineffective because assimilates sourced from the lower leaves are more focused on the development of plant roots. This is presumably due to the hybrid maize varieties, which has the capability to maintain the quality of the plants, therefore pruning 3 and 5 lower leaves has no significant effect towards the seed weight per cob and the weight of 1000 seeds. In this research the lower leaf trimming did not significantly affect the production of corn plants, but in the observation variables, the weight of 1000 seeds increased when compared to the weight of 1000 seeds in the description of pioneer varieties. The average weight of 1000 seeds in this research was on pruning the lower 3 leaves of 375.85 g while in pruning the lower 5 leaves 361.13 g and the weight of 1000 seeds in the description of pioneer varieties was 311 g, this meant an increase. Further research is required by considering the location of the leaves to be pruning.