PENGARUH PEMANGKASAN TANAMAN SENGON  TERHADAP KERAGAAN TANAMAN SELA DALAM  SISTEM AGROFORESTRI SENGON

The effects of pruning of Paraserianthes falcataria tree in an agroforestry system on yield of intercrops and tree performance were studied at Perhutani RPH Jatirejo, BKPH Pare, KPJH Kediri. Maize, stick nut, and chili were used as companion crops in between rows of two years old Paraserianthes falcataria tree. A split plot design with four replicates was set up for the experiment. The trees were 25%, 50% and 75% pruned. The measured parameters included growth and yield of the intercrops and performance of the tree. Results of this study showed that regular pruning of the agroforestry tree and planting of intercrops did not hinder growth and performance of the agroforestry tree, especially that was pruned 75%. Pruning of the tree also increase yield of the intercrops

Download Full-text

Pertumbuhan Sengon dan Produksi Padi Gogo pada Taraf Pemupukan P yang Berbeda dalam Sistem Agroforestri

Journal of Tropical Silviculture ◽

10.29244/j-siltrop.10.1.1-6 ◽

2019 ◽

Vol 10 (1) ◽

pp. 1-6

Author(s):

Derie Kusuma Budi Ningrum ◽

Nurheni Wijayanto ◽

Arum Sekar Wulandari

Keyword(s):

Upland Rice ◽

Oryza Sativa L ◽

Fertilizer Application ◽

Agroforestry System ◽

Paraserianthes Falcataria ◽

Split Plot ◽

P Fertilizer ◽

Main Plot ◽

High Production ◽

Plot Design

Agroforestry of upland rice (Oryza sativa L.) and sengon tree (Paraserianthes falcataria) could increase the growth of sengon trees; however, it would also increase the percentage of empty grain due to shade from the tree. Fertilization with P is expected to increase plant height, grain weight and weight of straw of upland rice and growth of sengon tree. The aim of this research is to analyze the growth and production of sengon and upland rice with agroforestry and P fertilizer application. Application in cultivation of upland rice using split-split plot design. The main plot is agroforestry and monoculture, subplot of Sintanur and Situ Bagendit varieties and split-split plot of P fertilization consisting of 4 levels, namely: P 0 = 0 g / plant, P50 = 3 g / plant, P100 = 6 g / plant and P150 = 9 g / plant. The application of P fertilizer showed that P 100% had high production on Sintanur varieties with monoculture. Agroforestry system can increase the growth of sengon plants.Keywords: agroforestry, P fertilizer, sengon, upland rice.

Download Full-text

Effect of varieties and weeding regimes on weed and performance of

South Asian Journal of Experimental Biology ◽

10.38150/sajeb.1(3).p121-130 ◽

2011 ◽

Vol 1 (3) ◽

pp. 121-130

Author(s):

U. Ismaila ◽

M. G. Kolo ◽

A. U. Gbanguba

Keyword(s):

Oryza Sativa ◽

Active Ingredient ◽

Oryza Sativa L ◽

Weed Suppression ◽

Dichlorophenoxyacetic Acid ◽

Aerobic Rice ◽

Split Plot ◽

Main Plot ◽

And Performance ◽

Plot Design

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intraÃ¢â‚¬Âspecific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intraÃ¢â‚¬Âspecific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.

Download Full-text

Performance of Intercrops under Different Spacings of Jatropha curcas Plantations in Tamil Nadu, India

Legume Research - An International Journal ◽

10.18805/lr-4327 ◽

2020 ◽

Author(s):

V. Subbulakshmi ◽

K. Srinivasan ◽

M. P. Divya ◽

S. Mani ◽

S. Kala ◽

...

Keyword(s):

Jatropha Curcas ◽

Energy Demand ◽

Tamil Nadu ◽

Agroforestry System ◽

Agroforestry Systems ◽

Growth And Yield ◽

Oilseed Crops ◽

Optimum Spacing ◽

Design Result ◽

Plot Design

Background: Non-edible oil as biodiesel helps to meet the energy demand and to reduce environmental degradation. Jatropha curcas is one of the potential oil yielding plant which can be grown under agroforestry systems without affecting food production. Hence the current study aimed to find out compatible intercrop under J. curcas and optimum spacing of J. curcas for intercropping. Methods: A study was carried out in three and a half-year old J. curcas plantation. Different spacings of J. curcas viz., 3m × 3m, 4m × 2m and 4m × 3m and different legumes viz., blackgram, greengram, cowpea, groundnut and oilseed crops viz., gingelly and sunflower were evaluated in split plot design. Result: Growth and yield of intercrops, available soil N, P and uptake of N, P, K by intercrops were significantly higher at wider spacing of J. curcas (4m × 3m). Among the intercrops, groundnut recorded higher uptake of N (67.3 kg ha-1), P (19.9 kg ha-1) and K (65.3 kg ha-1). Groundnut produced a significantly higher yield (885 kg ha-1) followed by cowpea (630 kg ha-1). The study found that planting of J. curcas at 4m × 3m spacing and intercropping with groundnut is a compatible and profitable J. curcas based agroforestry system.

Download Full-text

Growth Response and Yield of Three Shallot Varieties on The Various Mixed of UREA + ZA in Ultisol Soil

TROPICAL WETLAND JOURNAL ◽

10.20527/twj.v7i2.95 ◽

2021 ◽

Vol 7 (2) ◽

pp. 47-51

Author(s):

Lily Marlina ◽

Joko Purnomo ◽

Hilda Susanti

Keyword(s):

Plant Height ◽

Interaction Effect ◽

Growth Response ◽

Growth And Yield ◽

Affected Plant ◽

Split Plot ◽

Main Plot ◽

Number Of Leaves ◽

Four Levels ◽

Plot Design

This study aimed to: (1) identify the interaction effect between varieties and mixed doses of urea + ZA on the growth and yield of shallots in Ultisol soil; (2) to identify the effect of each shallot varieties and the dosage mixture of urea + ZA which produce the highest yield in Ultisol soils. The research was conducted from April to June 2019 in Tungkaran Village, Martapura, with a split plot design. The main plot was shallot varieties (V) with three levels, namely Biru Lancor (v1), Bima Brebes (v2), and Super Philip (v3). Subplots were a mixture of urea + ZA (P) with four levels, namely 0 kg urea + 600 kg ZA (p1), 100 kg urea + ZA 400 kg (p2), 200 kg urea + 200 kg ZA (p3), and 300 urea kg + ZA 0 kg (p4). Each experiment was repeated three times. Therefore, there were 36 experimental units. Observation parameters included plant height, number of leaves per clump, number of bulbs per clump, fresh bulbs' weight per clump, and yield of stored dry bulbs. The results showed that the Bima Brebes variety (v2) had a significant effect on plant height, number of leaves, number of bulbs per clump, the weight of fresh bulbs per clump, and yield of stored dry bulbs. The mixture of 200 kg urea + 200 g ZA (p3) significantly affected plant height, number of leaves, number of tubers per clump, the weight of fresh tubers per clump, and yield of stored dry tubers.

Download Full-text

Optimization of Split-Plot Design in the Context of Mixture Process Variable Settings

Asian Journal of Probability and Statistics ◽

10.9734/ajpas/2021/v12i330285 ◽

2021 ◽

pp. 1-36

Author(s):

Samson W. Wanyonyi ◽

Ayubu A. Okango ◽

Julius K. Koech ◽

Betty C. Korir

Keyword(s):

Factorial Design ◽

Process Variable ◽

Optimality Criteria ◽

Mixture Design ◽

Parameter Estimates ◽

Process Variables ◽

Split Plot ◽

Set Up ◽

Plot Structure ◽

Plot Design

In the presence of process variables, a mixture design has become well-known in statistical modeling due to its utility in modeling the blending surface, which empirically predicts any mixture's response and serves as the foundation for optimizing the expected response blends of different components. In the most common practical situation involving a mixture-process variable, restricted randomization occurs frequently. This problem is solved when the split-plot layout arrangement is used within the constraints. This study's primary goal was to find the best split-plot design (SPD) for the settings mixture-process variables. The SPD was made up of a simplex centroid design (SCD) of four mixture blends and a factorial design with a central composite design (CCD) of the process variable and compared six different context split-plot structure arrangement. We used JMP software version 15 to create D-optimal split-plot designs. The study compared the constructed designs' relative efficiency using A-, D-, I-, and G- optimality criteria. Furthermore, a graphical technique (fraction of design space plot) was used to display, explain, and evaluate experimental designs' performance in terms of precision of the six designs' variance prediction properties. We discovered that arranging subplots with more SCD points than pure mixture design points within SPD with two high process variables is more helpful and provides more precise parameter estimates. We recommend using SPDs in experiments involving mixture process settings developments to measure the mixture components' interaction effects and the processing conditions. Also, the investigation should be set up at each of the points of a factorial design.

Download Full-text

Respons fisiologi pertumbuhan dan hasil tiga genotip jawawut terhadap cekaman kekeringan

Jurnal Agro ◽

10.15575/4590 ◽

2019 ◽

Vol 6 (1) ◽

pp. 35-48

Author(s):

Yuyun Yuwariah ◽

Sheli Mustikasari Dewi ◽

Warid Ali Qosim ◽

Anne Nuraini

Keyword(s):

Field Capacity ◽

Growth And Yield ◽

Food Sources ◽

Experimental Station ◽

Physiological Processes ◽

Best Response ◽

Split Plot ◽

Main Plot ◽

Three Stages ◽

Plot Design

Jawawut merupakan salah satu tanaman pangan lokal Indonesia yang belum banyak dikembangkan dan dimanfaatkan sebagai sumber pangan. Penelitian ini bertujuan untuk mendapatkan genotip jawawut yang memberikan pengaruh paling baik terhadap pertumbuhan dan hasil pada berbagai tingkat pemberian air di rumah plastik. Penelitian dilaksanakan pada bulan Juni sampai dengan September 2017 di Kebun Percobaan Fakultas Pertanian, Universitas Padjadjaran. Penelitian menggunakan Rancangan Petak Terbagi (Split Plot Design) dengan 3 ulangan. Petak utama terdiri dari tiga macam genotip yaitu genotip 44, 46, dan 48. Anak petak terdiri dari tiga taraf kapasitas lapang yaitu 75%, 50% dan 25%. Hasil penelitian menunjukkan perlakuan pemberian air 25% kapasitas lapang berpengaruh paling buruk terhadap proses fisiologis pertumbuhan dan hasil tiga genotip jawawut. Genotip 44 dan 46, pada pemberian air 50 % KL menghasilkan konduktan stomata terbaik. Genotip 46 dan 48 memberikan pengaruh paling baik terhadap proses fisiologis pertumbuhan dan hasil jawawut yaitu jumlah anakan per rumpun.ABSTRACTMillet is one of Indonesia's local food crops that has not been widely developed as food sources. The purpose of this study was to obtain the genotypes of millet which gave the best effect on the growth and yield at various levels of water supply in the plastic house. The study was conducted from June to September 2017 at the Experimental Station of the Faculty of Agriculture, Universitas Padjadjaran. The research used the Split Plot Design with three replications. The main plot factor consisted of three levels of treatment; genotypes 44, 46, and 48. The subplot factor consisted of three stages of different treatment of the field capacity; 75%, 50% and 25%. The results showed the treatment of 25% water to field capacity had the worst effect on the physiological process of growth and yield of three millet genotypes. Genotypes 44 and 46, at 50% field capacity, produced the best stomatal conductance. Genotype 46 and 48 showed the best response to the physiological processes for the number of tillers.

Download Full-text

Interactive effects of irrigation and flobond on growth and yield of BRRI dhan29

Progressive Agriculture ◽

10.3329/pa.v30i2.42489 ◽

2019 ◽

Vol 30 (2) ◽

pp. 165-172

Author(s):

MZ Rahman ◽

R Ahmed ◽

A Shila ◽

MM Hasan ◽

MHK Howlader

Keyword(s):

Grain Yield ◽

Science And Technology ◽

Rice Variety ◽

Interactive Effects ◽

Growth And Yield ◽

Soil Conditioner ◽

Straw Yield ◽

Split Plot ◽

Plot Design

The experiment was conducted at the Research Farm of Patuakhali Science and Technology University (PSTU), Patuakhali during the period from December-May of 2015 to evaluate the effect of irrigation and soil conditioner on growth and yield of BRRI dhan29. A modern HYV rice variety BRRI dhan29 was grown under four different frequency of irrigation viz., four times, six times, eight times and ten times with five rates of flobond(soil conditioner), viz., 0.0, 5.0, 10.0, 15.0 and 20.0 per plot. The experiment was laid out in a split plot design with four replications. Irrigation and rate of soil conditioner and their interaction significantly influenced the yield contributing and other crop characters. It was observed that the highest grain yield (7.08 t ha-1) was obtained from eight times irrigations, but the highest straw yield was obtained from ten times irrigations (6.706 t ha-1).The highest grain yield (7.21 t ha-1) was obtained with 10g Flobond per plot but the highest straw yield (6.29 t ha-1) was obtained with no Flobond. However, the highest grain yield (8.38 t ha-1) was obtained with eight times irrigation coupled with 10g of Flobond per plot as soil conditioner and the lowest one (5.5 t ha-1) was obtained in four times irrigation and no Flobond. So, eight times irrigation coupled with 10g of Flobond per plot as soil conditioner was the best combination for obtaining best yield. Progressive Agriculture 30 (2): 165-172, 2019

Download Full-text

Growth Performance of Lentil by the Effect of Irrigation and Boron Splitting Asfoliar Application

Bangladesh Agronomy Journal ◽

10.3329/baj.v22i2.47642 ◽

2020 ◽

Vol 22 (2) ◽

pp. 139-150

Author(s):

S Paul ◽

TS Roy ◽

R Chakraborty ◽

M Roy ◽

SC Sarker

Keyword(s):

Dry Matter ◽

Foliar Spray ◽

Dry Weight ◽

Research Field ◽

Growth And Yield ◽

Four Levels ◽

Set Up ◽

Number Of Branches ◽

Plot Design ◽

Plant Length

A field experiment was conducted for evaluating the effect of irrigation and boron splitting as foliar spray on growth and yield of lentil at the Research Field of the Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka from November, 2018 to March, 2019.Three levels of irrigation viz., I0: control, I1: one irrigation at 25 days after sowing (DAS), I2: two irrigations at 25 DAS and 40 DAS and boron was applied by four levels viz., B0: control, B1: 80% recommended dose as basal + rest 20% as foliar spray (FS) at pre-flowering (PF), B2: 60% RD as basal + rest 40% as FS at PF, B3: 40% RD as basal + rest 60% as FS at PF. The experiment was fully set up in a split-plot design with three replications. Two irrigations at 25 and 40 DAS result produced that the highest plant length, branches plant-1, leaves plant-1, dry weight plant-1. On the other hand, B3 (40% RD as basal + rest 60% as FS at PF) produced significantly the highest growth of lentil. Result also showed that the highest plant length (27.59 cm), number of branches (5.73) and plant dry matter (4.83 g) recorded from I2B3 combinations. Therefore, the combination of two irrigations at 25 and 40 DAS and boron at 40% RD as basal + rest 60% as foliar spray at pre-flowering might be considered as effective dose for the cultivation of lentil in Bangladesh. Bangladesh Agron. J. 2019, 22(2): 139-150

Download Full-text

Effect of Row Spacing and Cultivar on the Growth and Seed Yield of Soybean (Glycine max [L.] Merrill) in Kharif-II Season

The Agriculturists ◽

10.3329/agric.v11i1.15239 ◽

2013 ◽

Vol 11 (1) ◽

pp. 33-38 ◽

Cited By ~ 1

Author(s):

MM Rahman ◽

MM Hossain

Keyword(s):

Glycine Max ◽

Seed Yield ◽

Growth And Yield ◽

Row Spacing ◽

Soybean Cultivars ◽

Field Laboratory ◽

Split Plot ◽

Glycine Max L ◽

Main Plot ◽

Plot Design

An experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during Kharif-II season 2005 to investigate the effect of row spacing and cultivars on the growth and yield of soybean. Three soybean cultivars: (1) Bangladesh Soybean -4 (G- 2), (2) BARI soybean -5 (BS-5) and (3) Shohag (PB-1) and four row spacings, (1) 20 cm, (2) 30 cm, (3) 40 cm and (4) 50 cm were used in the experiment in a split-plot design with row spacing in the main plot and cultivars in the sub-plot. Seeds were sown on 26 July 2005 at specified rows maintaining 5 cm plant to plant distance. The highest seed yield was obtained from 20 cm spacing and yield decreased with increased spacing irrespective of cultivars. Among cultivars the highest yield was given by cultivar BS-5 which was followed by PB-1. It was concluded that the soybean cultivars BS-5 and PB-1 could be selected for sowing in Kharif-II season and should be planted at 20 cm apart rows for achieving higher yield. DOI: http://dx.doi.org/10.3329/agric.v11i1.15239 The Agriculturists 2013; 11(1) 33-38

Download Full-text

The Effects of Silica on Growth and Yield of Chrysanthemum Plants (Dendranthema Sp.) Cultivar Sheena and Snow White

Ilmu Pertanian (Agricultural Science) ◽

10.22146/ipas.46129 ◽

2019 ◽

Vol 4 (3) ◽

pp. 98

Author(s):

Sylvatera Ayu Puspitasari ◽

Didik Indradewa

Keyword(s):

Market Competition ◽

International Market ◽

Growth And Yield ◽

Stem Anatomy ◽

Vascular Tissues ◽

Yield And Quality ◽

Snow White ◽

Split Plot ◽

Main Plot ◽

Plot Design

Silica is one of beneficial nutrient in plants. Silica functions to strengthen epidermal wall and vascular tissues so that it can affect the stems that are getting bigger and stronger. The present study was conducted to determine the effects of silica fertilizers on growth and yield of chrysanthemum plants in Sheena and Snow White varieties that have different anatomies. The present study used Split Plot Design. The main plot was the concentration of silica with 4 levels, i.e. 0 mg/l/m2, 31.1 mg/l/m2, 62.2 mg/l/m2, and 93.3 mg/l/m2. The subplots were two varieties, Sheena and Snow White. The present study revealed that Si fertilizers with 62.2 mg/L concentration could accelerate harvest age and the stem hardness in Snow White aged 45 days. The Snow White which has bark stem anatomy was more responsive to silica fertilizers than the Sheena with the woody stem anatomy. This research provides benefits for researchers, farmers and policy stakeholders to increased yield and quality for local and international market competition.

Download Full-text