Optimasi Dosis Pupuk Nitrogen dan Fosfor pada Tanaman Kelapa Sawit  (Elaeis guineensis Jacq.) Belum Menghasilkan Umur Satu Tahun

Shintarika, Feni; Sudradjat,; Supijatno,

doi:10.24831/jai.v43i3.11252

Cited by 6 publications

(7 citation statements)

References 6 publications

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“…Phosphorus is one of the essential nutrients needed for good growth and production for oil palm plants. Lack of phosphorus in plants will slow down the process of root growth, dark and erect leaves then turn purplish and harvest time will be slow [35].…”

Section: Phosphate Fertilization For Oil Palmmentioning

confidence: 99%

Impact of chemical fertilizer on soil fertility of oil palm plantations in relation to productivity and environment

Azahari,

Sukarman

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Indonesia produces around 45 MT of CPO in 2020. It is predicted that the demand of world palm oil will remain. Most of the oil palm plantations are grown on acidic soils with low fertility levels, such as Peat soils, Podzolic soils, and Acid sulfate soils. The domestic demand of phosphate and Kalium fertilizer still fulfilled by importation. Production of oil palm had depend on this fertilizer. Various research results have found that fertilizing oil palm using chemical anorganic fertilizers, especially Urea, TSP, KCl and Kieserit, has produced fresh fruit bunches which are quite high and profitable. Fertilizing oil palm crops requires a very large cost of around 30% of production costs. Currently, non-subsidized chemical fertilizers are rocketing, which is very burdensome for oil palm farmers. Some research results indicate that the continuous use of chemical fertilizers in oil palm plants causes to the land degradation. The use of organic fertilizers can improve sour and less fertile land, can increase the weight and number of oil palm fruit bunches. This paper aims to examine the impact of the use of chemical fertilizers on oil palm fruit production, as well as provide alternative organic fertilizers which sources are mostly around plantations.

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Section: Phosphate Fertilization For Oil Palmmentioning

confidence: 99%

Impact of chemical fertilizer on soil fertility of oil palm plantations in relation to productivity and environment

Azahari,

Sukarman

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Menurut Rustam et al, (2012) asap cair pelepah kelapa sawit mengandung asam asetat, Ca-Mineral, C-Organik, N-Urea dan P-Phospat. Shintarika et al, (2016) melaporkan bahwa pemupukan nitrogen dikombinasikan dengan fosfor tidak berpengaruh terhadap jumlah pelepah daun. Pemberian pupuk nitrogen dikombinasikan kalium pada bibit kelapa sawit mampu meningkatkan jumlah pelepah sebesar 4,8% (Halim et al, 2014).…”

Section: Jumlah Daununclassified

Pertumbuhan Bibit Kelapa Sawit Dengan Aplikasi Asap Cair Limbah Pelepah Kelapa Sawit

Lukmana¹,

Karunia²,

Majid³

2022

ZMIP

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The growth of good and quality seeds requires a lot of fertilization, considering that oil palm seeds grow quickly. Generally, the fertilizers used are compound fertilizers and inorganic single fertilizers. Continuous use of inorganic fertilizers without being balanced by organic fertilizers can reduce soil quality. Therefore, alternative fertilizers are needed to reduce the use of inorganic fertilizers. Liquid smoke from palm oil midrib-leaf waste can be developed into organic fertilizer, so a lot of studies are needed. This study aims to determine the growth of oil palm seedlings by giving liquid smoke from palm oil midrib-leaf waste. The treatments given were P0 (0% /control), P1 (2% liquid smoke), P2 (3% liquid smoke), P3 (4% liquid smoke), P4 (5% liquid smoke), P5 (10% liquid smoke ), P6 (15% liquid smoke) and P7 (20% liquid smoke). The results obtained are analyzed. A further BNJ test will be carried out at the 5% level if they give significantly different results. Parameters observed were plant height (cm), number of leaves (strands), leaf area (cm2), and diameter of stem circumference (mm). The application of liquid smoke from the palm fronds had a significant effect on plant height and leaf area of oil palm seedlings, while the parameters of the quantity leaves and stem diameter had no significant effect. The best treatment based on plant height and leaf area parameters was 2% liquid smoke from palm oil midrib-leaf. Keywords: liquid smoke, palm oil midrib-leaf, palm oil

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“…Nitrogen berperan dalam memacu pertumbuhan vegetatif tanaman karena adanya peningkatan laju fotosintesis akibat bertambahnya pembetukan klorofil daun (Shintarika et al, 2015). Fosfor berperan dalam proses penangkapan energi cahaya matahari dan mengubahnya menjadi energi biokimia.…”

Section: Pendahuluanunclassified

Respon Pertumbuhan Tanaman Cengkeh (Syzygium aromaticum (L.) Merr. Perr.) dengan Aplikasi Pupuk Organik-Anorganik dan Triakontanol

2020

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Application of right dosage of fertilizer and concentration of plant growth regulator are supporting factor of clove growth. This study was aimed to obtain the best combination of organic-inorganic fertilizer, the best triacontanol concentration and both interactions for increasing clove growth. This study used a Randomized Complete Block Design (RCBD) with two factors. The first factor was the organic-inorganic fertilizer dosage package that consisted of 6 levels, i.e no fertilizer, 100% recommended dosage of inorganic fertilizer (r.d.i.f), 25% recommended dosage of organic fertilizer (r.d.o.f) + 75% r.d.i.f, 50% r.d.o.f + 50% r.d.i.f, 75% r.d.o.f + 25% r.d.i.f, 100% r.d.o.f. The second factor was the concentration of triacontanol that consisted of 3 levels, i.e no triacontanol, 2 mg L-1 and 4 mg L-1. The results showed that the application of 25% r.d.o.f + 75% r.d.i.f produced the best clove growth, but it was not significantly different from the combination treatment of the two other types of fertilizer as indicated by the greatest improvement on stem diameter, branches number, leaf area, chlorophyll a, chlorophyll b, total chlorophyll and carotenoids. Clove plants did not respond to the application of triacontanol at a concentration of 2 mg L-1, but gave a negative response to the application of triacontanol 4 mg L-1 on the plant height and leaf area variables. The interaction of the two factors did not have significant effects on all variables. Keywords: chlorophyll, morphology, nutrient dynamics, physiology, vegetative growth

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Optimasi Dosis Pupuk Nitrogen dan Fosfor pada Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) Belum Menghasilkan Umur Satu Tahun

Cited by 6 publications

References 6 publications

Impact of chemical fertilizer on soil fertility of oil palm plantations in relation to productivity and environment

Impact of chemical fertilizer on soil fertility of oil palm plantations in relation to productivity and environment

Pertumbuhan Bibit Kelapa Sawit Dengan Aplikasi Asap Cair Limbah Pelepah Kelapa Sawit

Respon Pertumbuhan Tanaman Cengkeh (Syzygium aromaticum (L.) Merr. Perr.) dengan Aplikasi Pupuk Organik-Anorganik dan Triakontanol

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