scholarly journals Pertumbuhan Tanaman Lada (Pipper nigrum L.) Umur Satu Tahun pada Lahan Bekas Tambang dengan Penambahan Dosis Pupuk Hayati yang Berbeda

2019 ◽  
Vol 8 (2) ◽  
pp. 117-125
Author(s):  
Badriyah Badriyah ◽  
Ismed Inonu ◽  
Euis Asriani

Badriah B, Inonu I, Asriani E. 2019. Growth of one year old pepper (Pipper nigrum L.) in post tin mining land using different dosage biofertilizer. Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):117-125.    The yield of pepper as important spice plant has been decreased due to the reduction of pepper planting area which are converted into tin mining area. One effort can be done is utilizing suboptimal lands that has low soil fertility. The aim of this research was to determine the effect of biofertilizer dosage on one year old pepper to growth in post tin mining land. This research had been conducted from February 2018 until June 2018 in post tin mining land owned by PT Timah at Dwi Makmur Village, Bangka. The research used expremental method with Completely Randomized Block Design (CRBD) with single factor. The factor was biofertilizer dosage: (0,0; 0,5; 1,0; 5,0; 10,0; and 15,0 g/L/plant). The result showed enrichment biofertilizer significantly effect on chlorophyll content and number of branch, but not significantly on plants height, number of nodes, and leaf area. The treatment dosage 10 g/L/plant (1x108 cfu) was the best inclined result growth of one year old pepper plant in post tin mining land.

2016 ◽  
Vol 22 (3) ◽  
pp. 301
Author(s):  
Ana Cecilia Ribeiro de Castro ◽  
Fernando José Hawerroth ◽  
Carlos Alberto Kenji Taniguchi ◽  
Tiago Freitas Silva ◽  
Nazaré Suziane Soares

The objective of this study was to evaluate growth regulators with purpose of reducing the size of heliconia ‘Red Opal’ potted plants. The experiment was carried out in randomized block design with five treatments (trinexapac-ethyl and paclobutrazol at rates of 37.5 and 75.0 mg of active ingredient per pot and control without growth regulator) and five replicates. The treatments were applied 40 days after planting the rhizomes in pots filled with soil. Thirty and 150 days after the growth regulator application, plant height, number of leaves and shoots, petioles length and leaf area were evaluated. One year after planting the rhizomes in pots the number of inflorescence and leaves (leaves, sheathing leaf bases and inflorescences) and rhizomes (rhizomes and roots) dry mass were determined. Trinexapac-ethyl had no differences compared to the control in any of the variables evaluated. Paclobutrazol proved effective in reducing plant height, leaf area and petiole length and increase in number of leaves and shoots but the effect was temporary. Also, it did not affect the inflorescences production and leaves and rhizomes dry mass. Paclobutrazol is efficient to promote height reduction and to increase the number of shoots in heliconia ‘Red Opal’ potted plants without affect the inflorescence formation but its effects is temporary.


Irriga ◽  
2019 ◽  
Vol 24 (4) ◽  
pp. 890-899
Author(s):  
ENRIQUE ALONSO ZUÑIGA ◽  
LUZ MARIA RUIZ MACHUCA ◽  
OSVALDIR FELICIANO DOS SANTOS ◽  
MARA LÚCIA CRUZ DE SOUZA ◽  
DARIANE PRISCILA FRANCO DE OLIVEIRA ◽  
...  

COMPORTAMENTO FISIOLÓGICO DE MUDAS DE CAFEEIRO ARÁBICA (cv. OBATÃ E CATUCAÍ) SUBMETIDAS À DEFICIÊNCIA HÍDRICA     ENRIQUE ALONSO ZUÑIGA1*; LUZ MARIA RUIZ MACHUCA1; OSVALDIR FELICIANO DOS SANTOS1; MARA LÚCIA CRUZ DE SOUZA1; DARIANE PRISCILA FRANCO DE OLIVEIRA1 E FERNANDO BROETTO 2   1Departamento de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista (UNESP) Campus de Botucatu. Fazenda Experimental Lageado, Avenida Universitária, n° 3780, Altos do Paraíso, CEP: 18610-034, Botucatu – SP. Brasil. E-mail: [email protected]; [email protected]; [email protected]; [email protected]; [email protected]. *O presente artigo é retirado da tese de Doutorado do autor principal. 2Departamento de Química e Bioquímica, Instituto de Biociências , Universidade Estadual Paulista (UNESP) Campus de Botucatu. Rua Prof. Dr. Antônio Celso Wagner Zanin, nº 250, Distrito de Rubião Junior, CEP: 18618-689, Botucatu – SP. Brasil. E-mail: [email protected]     1 RESUMO   Neste trabalho foram avaliadas características biométricas e teor de pigmentos em plantas de cafeeiro arábica cv. Obatã e Catuaí cultivadas sob deficiência hídrica (DH). O experimento foi conduzido em estufa agrícola no período dezembro-maio de 2016-2017 no distrito de Rubião Júnior (Departamento de Química e Bioquímica do IB/UNESP), Botucatu-SP. Os tratamentos foram dispostos em delineamento em blocos casualizados em esquema fatorial 3x2 em parcelas subdivididas, com quatro repetições por tratamento. Os tratamentos aplicados foram: T1 - 100% da capacidade de campo (CC) - C = Controle, plantas bem irrigadas, T2 - 50% da CC - DHM = Deficiência hídrica moderada e T3 - 25% da CC - DHS = Deficiência hídrica severa. Aos 90, 120, 135 e 165 dias após transplantio (DAT) foram avaliados a altura de plantas, área foliar e teor de clorofilas (a e b). Verificou-se que apenas a altura das plantas e a área foliar diminuíram significativamente em função da severidade do estresse. Entre as cultivares, somente as plantas da cv. Obatã conseguiram se adaptar melhor aos efeitos da DH.   Palavras-chave: Coffea arabica, deficiência hídrica, biometria, pigmentos foliares.     ALONSO-ZUÑIGA, E; RUIZ-MACHUCA, L. M; SANTOS, O. F; SOUZA, M. L. C; OLIVEIRA, D. P. F; BROETTO, F. PHYSIOLOGICAL BEHAVIOR OF ARABIC COFFEE SEEDLINGS (cv. OBATÁ AND CATUCAÍ) SUBMITTED TO WATER DEFICIT     2 ABSTRACT   In this work, biometric characteristics and pigment content were assessed in Arabica cv. Obatã and Catuaí cultivated under water deficit (WD). The experiment was conducted in an agricultural greenhouse from December to May, 2016-2017 in the district of Rubião Júnior (Department of Chemistry and Biochemistry of IB / UNESP), Botucatu-SP. Treatments were arranged in a randomized block design in a 3x2 factorial scheme in subdivided plots, with four replications per treatment. The treatments applied were: T1 - 100% of field capacity (FC) - C = Control, well irrigated plants, T2 - 50% of FC - MWD = moderate water deficit and T3 - 25% FC - SWD = severe water deficit. Plant height, leaf area and chlorophyll content (a and b) were assessed at 90, 120, 135 and 165 days after transplanting (DAT). It was verified that only plant height and leaf area decreased significantly as function of stress severity. Among the cultivars, only cv. Obatã presented better adaptation to the effects of WD. Keywords: Coffea arabica, water deficit, biometry, foliar pigments


Author(s):  
Y Sukmawan ◽  
D Riniarti ◽  
R Mukti

Optimum maintenance is required to get a high-quality parent plant. One of themaintenances is fertilization to ensure the optimal growth of the pepper parent plant. This studyaimed to obtain the optimum rate of urea fertilizer for a one-year-old of the pepper parentplant. The field experiment used a single factor in a randomized block design (RBD) with fiveurea rate levels, and each treatment was repeated three times. Treatment levels of urea rate,namely 0 g plant-1 year-1, 100 g plant-1 year-1, 200 g plant-1 year-1, 300 g plant-1 year-1 and400 g plant-1 year-1. The rate of urea influenced the number of internodes and leaf area of thepepper parent plant. The rate of 315 g plant-1 year-1 urea is the optimum rate for the growth ofthe number of the branch of a one-year-old pepper parent plant.


AGRICA ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 1-8
Author(s):  
Agustinus JP Ana saga ◽  
Murdaningsih Murdaningsih

This study aimed to explore the effect of Siam weed (Chromolaena odorata)  green manure application on the growth and development of mustard (Brassica juncea) in Kelimutu National Park, Indonesia.  The study was carried out between September and November 2010 in Ende district on the island of Flores, Indonesia, at an altitude of 1500 to 1730 meters above sea level. This study used a randomized block design with four treatments: K0: No Siam weed application, K1: 5 tons/ha Siam weed (2.8kg/plot), K2: 10 tons/ha Siam weed (5.6kg/plots), K3: 15 tons/ha Siam weed (8.4kg/plot), K4: 20 tons/ha Siam weed (11.2kg/plot). Researchers observed plant characteristics (plant height, leaf area, wet weight and number of leaves) and soil fertility indicators (Organic carbon).  Plant organic matter was ground and subsequently analyzed for nutrients using a randomized block design along with lab analysis for soil fertility. The results of this study showed that the application of Siam weed organic matter had no significant effect on mustard plant height, leaf number, leaf area, or wet weight. However, it was found that organic matter application did have a significant effect on soil fertility indicators (organic carbon), and caused an increase in soil organic matter content.


2016 ◽  
Vol 43 (3) ◽  
pp. 250
Author(s):  
Feni Shintarika ◽  
Sudradjat , ◽  
Supijatno ,

<p>ABSTRACT</p><p>The accuracy of fertilizer dosage for one-year-old oil palm plants is very important. The objective of the research was to determine the optimum rates of Nitrogen and Phosphorus fertilizers for young oil palm. The experiment was conducted at IPB-Cargill Teaching Farm of Oil Palm at Jonggol, from March 2013-March 2014. This study consisted of two separate experiments namely (1) Optimizing Nitrogen and (2) Optimizing Phosphorus. Both experiments used randomized block design with one factor and three replications. The treatments were five rates of nitrogen or phosphorus (0, 135, 270, 405, 540 g N per plant; 0, 135, 270, 405, 540 g P2O5 per plant). The results showed that nitrogen fertilizer rates increased height linearly at 10 month after treatment (MAT) and quadratically at 12 MAT. Stem girth, frond production and leaf area of 9th frond increased quadratically with N rates (9, 10, 12 MAT). Nitrogen fertilizer quadratically increased leaf chlorophyll content (12 MAT), but did not significantly affected leaf-N content. Phosphorus fertilizer increased palm height linearly (9, 10 MAT) and quadratically (12 MAT). Phosphorus linearly increased stem girth (12 MAT) and quadratically (9, 10 MAT). Frond production was quadratically increased with phosphorus rates (9, 10, 12 MAT). Phosphorus linearly increased leaf area of 9th frond (9 MAT) and quadratically (12 MAT). The optimum rates of nitrogen and phosphorus fertilizers for one year old plant was 382 g N and 331 g P2O5 per plant, respectively.</p><p>Keywords: inorganic, nutrient, optimum rates, single fertilizer</p>


2021 ◽  
Vol 28 (1) ◽  
pp. 31
Author(s):  
Kovertina Rakhmi Indriana ◽  
Cucu Suherman ◽  
Santi Rosniawaty ◽  
Sumadi Sumadi ◽  
Dodi Sukmayana

The purpose of this study was to reveal the sensitivity of cross-location based on topography by giving different FMA consortiums to physiological growth characteristics in three Jatropha curcass L. cultivars. Based on these objectives, the nature of this research is verification. Experiments were carried out in two different places based on topography. The trial time starts from November 2017 to May 2018. Experiments A simple randomized block design (RBD) pattern consisting of fifteen treatment combinations is repeated twice. The experimental results showed that the dose of 10 gr FMA consortium (glomus sp., Acaulospora sp., Gigaspora sp.). With the same spore density gave the best performance of Jatropha plant growth in two different locations based on topography. Observation of chlorophyll content in leaves (age 21, 63, 21 DAP in two locations), plant height (age 21, 63, 21 DAP in two locations), stem diameter (age 21, 63, 21 DAP in two locations) and number of branches secondary (age 21 DAP in two locations) there was a significant effect on the single factor of giving the FMA consortium but there was no interaction between location and treatment.


2020 ◽  
Vol 19 (2) ◽  
pp. 87
Author(s):  
Novalia Syafitri ◽  
Agus Karyanto ◽  
Rugayah Rugayah ◽  
Setyo Widagdo

Mangosteen (Garcinia mangostana L.) is a tropical plant that bears seasonal fruit and is one of Indonesia's leading export commodity.  Mangosteen production in Indonesia is still low and not continuous, because there are several factors that influence it.  One of them is the character of biennial bearing in mangosteen one year produce high fruit load followed by a next year of very low production.  Therefore it is necessary to induce off season mangosteen flowering.  This study aims to determine: (1) the effect of Paklobutrazol on the flowering of mangosteen plants, (2) the effect of adding KNO3 and Etefon on the acceleration of mangosteen flowering.  This research was conducted in Mulangmaya Village, Kota Agung Timur District, Tanggamus, Lampung.  Regency at an altitude of 250 m above sea level from September 2018 to April 2019.  This research used a Randomized Block Design (RBD) with a single factor consisting of 3 treatments, namely P1 ( manure 10 kg/plant + NPK Nitrophonska 1 kg/plant, P2 (Paclobutrazol 2 ml/l + KNO3 20 g/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant), and P3 (Paclobutrazol 2 ml/l + Etefon 40 ml/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant).  The data obtained were analyzed by analysis of variance and the mean separation was carried out by orthogonal contrast test at the 5% significance level.  The results showed that the treatment of P2 (Paclobutrazol 2 ml/l + KNO3 20 g/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant) on mangosteen plants was able to spur flowering faster with a difference of 12 days (8.70% ), and increased the total number of fruits per plant by a difference of 41 fruit (38.80%).  The P3 treatment (Paclobutrazol 2 ml/l + Etefon 40 ml/l + manure 10 kg/plant + NPK Nitrophonska 1 kg/plant), unexpectedly causing significant leaf drop 3 days after Ethephon spray, and new leaves were formed a month later.  Keywords : Ethephon, KNO3, Paclobutrazol, and mangosteen flowering


AgriPeat ◽  
2019 ◽  
Vol 20 (01) ◽  
pp. 19-26
Author(s):  
Admin Journal

ABSTRACTThe role of Trichocompost and KCl fertilizer to control Fusarium wilt disease on onion in sandy soil. Fusarium wilt on onion is an interesting disease it is can loss the onion yield. The purpose of research to study trichocompost and KCl fertilizer role to control Fusarium wilt disease on ann onion. The research design used a Factorial Randomized Block Design with 2 factors. The first factor is 4 levels trichocompost, it is: without trichocompost (T0), trichocompost 10 t.ha-1 dosage (T1), trichocompost 20 t.ha-1 dosage (T2), trichocompost 30 t.ha-1 dosage (T3). The second factor is 3 levels KCl fertilizer, it is: without KCl (K0), KCl 100 kg.ha-1 dosage (K1), KCl 200 kg.ha-1 dosage (K2). Result of this research showed the application of trichocompost 10 t.ha-1 dosage and KCl 100 kg.ha-1 dosage can inhibit Fusarium wilt incubation time, can inhibit the patogen development with effective value 89,23%, the single factor it is aplication trichocompost 10 t.ha-1 dosage and trichocompost 30 t.ha-1 dosage not significant to dried onion bulb weight per clump of onion plant.Key words: Trichocompost, KCl fertilizer, Fusarium wilt disease, onion, sandy soil.ABSTRAKPenyakit layu Fusarium merupakan salah satu penyakit penting dapat menurunkan produksi bawang merah hingga 50%. Tujuan penelitian untuk mengetahui peranan trichokompos dan pupuk KCl dalam mengendalikan penyakit layu fusarium pada tanaman bawang merah. Penelitian menggunakan Rancangan Acak Kelompok faktorial dua faktor perlakuan. Faktor pertama 4 taraf dosis trichokompos yaitu: tanpa trichokompos (T0), trichokompos dosis 10 t.ha-1 (T1), trichokompos dosis 20 t.ha-1 (T2), trichokompos dosis 30 t.ha-1 (T3). Faktor kedua 3 taraf dosis pupuk KCl yaitu: tanpa pupuk KCl (K0), pupuk KCl dosis 100 KCl kg.ha-1 (K1), pupuk KCl dosis 200 KCl kg.ha-1 (K2). Hasil penelitian menunjukkan pemberian trichokompos 10 t.ha-1 dan pupuk KCl 100 kg.ha-1 dapat memperpanjang masa inkubasi penyakit, menekan serangan penyakit layu Fusarium dengan nilai efektivitas sangat baik (89,23%), perlakuan tunggal trichokompos dosis 10 t.ha-1 tidak berbeda nyata dengan dosis 30 t.ha-1 terhadap bobot umbi kering per rumpun tanaman bawang merah.Kata kunci: penyakit layu Fusarium, pupuk KCl, tanah berpasir, tanaman bawang merah, trichokompos.


2020 ◽  
Vol 27 (1) ◽  
pp. 56-60
Author(s):  
Reena Joshi ◽  
Salil Tewari ◽  
Rajesh Kaushal

The experiment was conducted at Agroforestry Research Centre, of G. B. Pant University of Agriculture and Technology, Pantnagar to assess the effect of age (one and two year old), growing condition (intermittent misting and no misting) and different seasons (summer, monsoon, autumn and spring) on rooting and shooting of culm cuttings of Dendrocalamus asper. The experiment was laid out in factorial randomized block design with three replications. The findings indicated that in D. asper, one year old culm cuttings in the intermittent misting condition showed good results. The findings also indicated that shooting and rooting per cent of culm cuttings planted in different season showed response as Spring (March)> Summer (June)> Monsoon (August)> Autumn (October).


2010 ◽  
Vol 39 (8) ◽  
pp. 1666-1675 ◽  
Author(s):  
Marcio Mahmoud Megda ◽  
Francisco Antonio Monteiro

The objective of this work was to study morphogenic characteristics, and dry matter production of roots and shoots of marandu palisadegrass (Brachiaria brizantha cv. Marandu) submitted to combinations of nitrogen and potassium, in a nutritive solution, employing silica as substrate. The experiment was carried out in a greenhouse during the summer. It was used a 5² fractionated factorial scheme with 13 combinations of nitrogen and potassium, which were distributed in a randomized block design, with four replications. The nitrogen × potassium interaction was significant for the number of tillers and leaves, for leaf area, for shoots and root section dry mass, for total length and surface and specific length and surface in the roots. Production of aerial part dry mass positively correlated with the number of tillers and leaves and grass leaf area. Nitrogen rates modulated the root system development, and the root specific length and surface decreased when high rates of nitrogen and potassium were supllied. Nitrogen and potassium influence Marandu palisadegrass morphogenic characteristics, which are determinant for grass dry matter production.


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