Efisiensi Penggunaan Cahaya Matahari oleh Tebu pada Berbagai  Tingkat Pemupukan Nitrogen dan Fosfor

Pembengo, Wawan; Handoko,; Suwarto, .

doi:10.24831/jai.v40i3.6828

Cited by 12 publications

(11 citation statements)

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“…The increase LAR followed by the increased biomass indicating the photosynthates effectivity. The determinant component of plants growth was the efficiency of light intensity concerning light interception and biomass production (Pembengo et al 2012). Budiastuti & Purnomo (2012) states that solar radiation, leaf orientation and position, the environment, and the types of plants control the photosynthesis process.…”

Section: Discussionmentioning

confidence: 99%

A Study of Light Intensity and Fertilizer on Soybean in Albizia chinensis Agroforestry System

Affandi

Purnomo

Supriyono

2019

Sains Tanah J. Soil Sci. Agroclimatology

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One of the efforts to solve the decreasing of agriculture land area caused by land use change is through agroforestry system (AF), such as the cultivation among the Albizia chinensis trees. This research, along with the experiment, aims at studying the light characteristic of 1.5 years oldAlbizia c and the effect of fertilization on the growth of soybean and testing the soybean yield of Dega 1 varieties in agroforestry system based on Albizia c. Using the split-plot Randomized Block Design (RBD) as the experiment, the intensity of light was employed as the main plot whereas the fertilizer was used as the subplot in this study. There were four levels of light intensity: land with high light intensity (lands outside AF), rather high light intensity (radiation transmission fraction (RTF) among Albizia c 1425 ha-1 density), medium-high light intensity (RTF among 2850 Albizia c density with pruned canopy), rather low light intensity (RTF among 2850 Albizia c density with unpruned canopy). As the subplot were some various fertilizers such as Albizia c litter, Albizia c litter + phosphorus (P) + potassium (K), and without any fertilization. Totally 12 treatments were obtained and each of those treatments was replicated three times, consequently consisting of 36 experiment units. The result of this research shows that Albizia c was exceedingly potential for the soybean cultivation with AF system. The passing light under the canopy (RTF) depended on the distance between each tree and could be improved by pruning the canopy. The increasing RTF increased vegetative and generative growth. The highest soybean production (3.3 tons ha-1) could be achieved in 2850 trees ha-1 density with pruned canopy (RTF: 49% equals to 28440 lux) compared with biomass production in open land (3.9 tons ha-1).

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Section: Discussionmentioning

confidence: 99%

A Study of Light Intensity and Fertilizer on Soybean in Albizia chinensis Agroforestry System

Affandi

Purnomo

Supriyono

2019

Sains Tanah J. Soil Sci. Agroclimatology

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“…Komponenkomponen bobot tanaman seperti jumlah daun, luas daun dan diameter batang yang tidak berbeda nyata menyebabkan biomassa tanaman semua perlakukan juga tidak berbeda nyata. Menurut Pembengo et al (2012) besar kecilnya biomassa tanaman tebu dipengaruhi oleh struktur kanopi dan indeks luas daun, indeks luas daun senilai 2.82 mampu mengintersepsi PAR (photosynthetically active radiation) lebih tinggi dibanding indeks luas daun sebesar 2.11 sehingga menghasilkan biomassa tanaman lebih tinggi.…”

Section: Spad Index Luas Daun Luas Daun Spesifik Diameter Batang Dan ...unclassified

Pertumbuhan dan Hasil Tanaman Bawang Putih pada Berbagai Penambahan Lama Penyinaran Lampu LED Putih

Cartika

Rahayu

Basuki

et al. 2022

J. Agron. Indonesia

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Lampu LED dapat digunakan untuk menambah lama penyinaran pada tanaman bawang putih yang memerlukan panjang hari lebih dari 12 jam karena dapat membantu proses fotosintesis sebagai pengganti cahaya matahari. Penelitian ini bertujuan untuk melihat pengaruh penambahan lama penyinaran menggunakan lampu LED putih 100 watt dengan nilai intensitas 9685±385 lux terhadap pertumbuhan dan hasil tanaman bawang putih. Percobaan dilakukan pada bulan Mei sampai September 2021 di kebun percobaan Balitsa Lembang, Jawa Barat. Rancangan percobaan yang digunakan adalah petak jalur dua faktor. Faktor pertama adalah penambahan lama penyinaran, yaitu 3 jam, 5 jam, 7 jam, dan kontrol. Faktor kedua adalah varietas bawang putih, yaitu Lumbu Hijau dan Tawangmangu Baru. Hasil penelitian menunjukkan penambahan lama penyinaran selama 5 jam pada varietas Tawangmangu Baru mampu meningkatkan tinggi tanaman, bobot tajuk tanaman dan lebar siung. Penambahan lama penyinaran selama 3, 5, dan 7 jam tidak berpengaruh nyata pada tinggi tanaman, jumlah daun, diameter batang, SPAD index, luas daun, luas daun spesifik, biomassa tanaman, bobot umbi, diameter umbi dan ukuran siung bawang putih varietas Lumbu Hijau. Kata kunci: fotoperiode, lampu LED, panjang hari, varietas

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“…Hara fosfor (P) pada tanaman tebu berperan dalam pertumbuhan sel, pembentukan akar dan rambut akar, memperkuat batang agar tanaman tidak mudah rebah, memperbaiki kualitas tanaman, pembentukan bunga, buah dan biji. Kekurangan hara P akan menurunkan indeks luas daun sehingga berpengaruh terhadap biomassa tanaman tebu (Pembengo et al, 2012). Kadar P di daun, batang dan akar tebu dipengaruhi secara nyata oleh interaksi antara ordo tanah dan masa monokultur tebu (Tabel 1).…”

Section: Kadar Nitrogen Fosfor Dan Kalium Tebu Pada Ordo Tanah Dan Ma...unclassified

Kadar Hara Dalam Jaringan Tanaman Sebagai Respon Budidaya Monokultur Dan Hubungannya Dengan Hasil Pada Tanaman Tebu

Kusumawati

Hanudin

Purwanto

et al. 2022

JIPI

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[RESPONSE OF THE NUTRITION LEVELS OF SUGARCANE IN THREE ORDERS OF SOIL DUE TO SUGARCANE MONOCULTURE CULTIVATION]. Monoculture cultivation will have an influence not only on soil conditions but also on plant growth, nutrient levels in plant tissues, and yields. The purpose of this study was (1) to determine the effect of monoculture sugarcane cultivation on nutrient levels of the roots, stalks, and leaves of sugarcane plants, (2) to determine the relationship between nutrient levels in sugarcane tissue and sugarcane productivity, and yield in three different soil orders. This research had two factors, namely soil order (Entisol, Inceptisol, and Vertisol) and sugarcane monoculture period (1–10, 11–20, and 21–30 years). The sugar cane used was the ratoon of two sugarcane. Parameters observed included nutrient levels of N, P, K, B, and Zn in roots, stalks, and leaves of sugarcane, and productivity of plants. Data analysis was performed with ANOVA at 5% level and regression correlation analysis. The results showed that the levels of N (leaves, stalks, and roots), levels of P (leaves, stalks, and roots), levels of leaf K, levels of B (leaves and roots), and level of Zn of sugarcane roots were influenced by the interaction between soil order and sugarcane monoculture period. Zn and K levels in sugarcane leaves had a strong and significant correlation with sugarcane productivity (r=0.778* and r=0.699*), while sugarcane yields had a strong and significant correlation with N content of root (r=0.752*). This result indicates that the soil order and the mass of sugarcane monoculture have an effect on the nutrient content in the plant and this nutrient content affects the productivity and yield. The availability of macro and micronutrients needs to be considered in monoculture sugarcane planting techniques to obtain optimal and sustainable sugarcane yields.

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Efisiensi Penggunaan Cahaya Matahari oleh Tebu pada Berbagai Tingkat Pemupukan Nitrogen dan Fosfor

Cited by 12 publications

References 0 publications

A Study of Light Intensity and Fertilizer on Soybean in Albizia chinensis Agroforestry System

A Study of Light Intensity and Fertilizer on Soybean in Albizia chinensis Agroforestry System

Pertumbuhan dan Hasil Tanaman Bawang Putih pada Berbagai Penambahan Lama Penyinaran Lampu LED Putih

Kadar Hara Dalam Jaringan Tanaman Sebagai Respon Budidaya Monokultur Dan Hubungannya Dengan Hasil Pada Tanaman Tebu

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