scholarly journals Comportamiento del pasto Taiwán (Pennisetum purpureum) fertilizado con efluente de biogas en época de máxima precipitación pluvial

2016 ◽  
Vol 1 ◽  
pp. 69
Author(s):  
José M. Will ◽  
Guillermo Valle A.
Keyword(s):  
Block Design ◽  
Pennisetum Purpureum ◽  
Forage Production ◽  
Available N ◽  
Plot Size ◽  
Average Annual Temperature ◽  
Randomized Complete Block Design ◽  
Low Levels ◽  
Made In ◽  
North Latitude

This work was conducted at the Centro Universitario Regional del Litoral Atlántico (CURLA) at 15°47’north latitude and 86°50’ west longitude, 10 km west La Ceiba, Honduras. The ecosystem Is characterized as tropical rain forest having 2700 mm of rainfall per year and an average annual temperature of 27°C with 82% relative humidity. Soils in the region are characterized by having an average soil pH of 4.9, have low levels of available N and P, high levels of Fe and intermediate levels of Mn. A randomized complete block design was employed with 4 replications. Plot size was 2 x 3 m encompassing 3 rows. In each block three rates of biogas effluent were applied at 250,500 and 750 kg N/ha/year. An added check with zero effluent was also included. The grass was cut at the surface of the soil every 56 days and the application of effluent was made in split applications. The results indicate that these treatments increased yield at least 25 % above the check. In the first cuttings there was a tendency to decrease yields although final cuttings demonstrated increased yields. This same response was observed in plant protein, especially in the last cutting where a 48 % increase was obtained. The best  treatmentrelative to forage production and protein content was found when 500 kg N/ha/year was applied.

scholarly journals Verification of disease management technology on lentil against Stemphylium blight at farmer’s field in Nepal

2018 ◽  
Vol 1 (1) ◽  
pp. 51-61
Author(s):  
Subash Subedi ◽  
Sarswati Neupane
Keyword(s):  
Lens Culinaris ◽  
Block Design ◽  
Cost Ratio ◽  
Row Spacing ◽  
Benefit Cost Ratio ◽  
Plot Size ◽  
Management Technology ◽  
Randomized Complete Block Design ◽  
Stemphylium Blight ◽  
Benefit Cost

Technologies generated from lentil (Lens culinaris Medik) stemphylium blight (Stemphylium botryosum Walr) management experiments were verified at farmers field of 5 districts viz., Chitawan, Rautahat, Dang, Parsa and Banke during two winter seasons of 2013-2014 and 2014- 2015. The experiment was laid out in randomized complete block design with factorial arrangement of treatments and replicated 4 times. The plot size was 340 m2 (1 Kattha) with 25 cm row to row spacing. There were altogether 3 factors of the experiment i.e. year (2013-2014 and 2014-2015), location (5 districts) and package of practice (improved and farmers practice). The higher crop yield (1142.50 kg/ha) with lower disease index (34.95%) and higher benefit cost ratio of 2.42 were recorded in the farmers field of Banke district following seed rate (30 kg/ha), 8 hour primed improved variety (Black lentil), fertilizer doze of (20:40:20 NPK kg/ha+ 1 kg/ha B basal doze) and subsequent 3 sprays of Dithane M-45 @ 2.5 g/l of water at 10 days interval.

scholarly journals EVALUATION PERFORMANCE OF THREE Pennisetum GENUS GROWN ON PINES FOREST IN LEMBANG, WEST JAVA

Pastura ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 97
Author(s):  
Sajimin Sajimin ◽  
N. D. Purwantari
Keyword(s):  
Rainy Season ◽  
Crude Protein ◽  
Block Design ◽  
Production Quality ◽  
Agroforestry System ◽  
Dry Season ◽  
Pennisetum Purpureum ◽  
Forage Production ◽  
Crude Fibre ◽  
Shoot Production

Pines are the largest tree forests in West of Java so that they are very potential to be developed as an agroforestry system. Forage crop potentially to be cultivated in the agroforestry system. The aim of the research was to study the response of the grasses grown under pines forest. The experiment was conducted at pines forest area arranged in randomized complete block design. The treatments were 3 grasses (Pennisetum purpureum cv. Taiwan, P. purpureum (local) and Pennisetum purpureophoides (king grass). Data collected were productivity, agronomic performance (plant height, tiller), forage production and quality. The result shows that shoot production of Taiwan cultivar was significantly higher than local P. purpureum. It was produced 498.4 g/clump on rainy season and 287.0 g/clump at dry season. At dry season forage production was decreased by 39,9%/ha. Nutrient composition at rainy season, crude fibre of grass was 39.89%; Ca 0.04%; P 0.26%; ash 12.46%; energy 4239.5 kcal/kg and crude protein 8.23%; while at the mid of dry season crude fibre was 38.43%; Ca 0.035%; P 0.26%; ash 11,43%; energy 3943 kcal/kg and crude protein 8.94%. Key words: pines, forestry, forage, production, quality

scholarly journals PRODUCTION AND NUTRITIVE VALUE OF CANARANA ERECTA LISA (Echinocloa piramidalis Lam.) IN RESPONSE TO HARVEST INTERVALS

2019 ◽  
Vol 20 ◽  
Author(s):  
Angela Maria de Vasconcelos ◽  
Mauricio Cesio Araujo Dutra ◽  
Robson Mateus Freitas Silveira ◽  
Valdson José da Silva ◽  
Luís Alfredo Pinheiro Leal Nunes ◽  
...  
Keyword(s):  
Nutritive Value ◽  
Block Design ◽  
Neutral Detergent Fiber ◽  
Experimental Unit ◽  
Forage Production ◽  
Dry Matter Digestibility ◽  
Forage Digestibility ◽  
Randomized Complete Block Design ◽  
Harvest Intervals

Abstract The objective of this study was to compare and explain the variations in the production and nutritive value of canarana erecta lisa grass (Echinocloa pyramidalis Lam.) at different harvest intervals. The treatments corresponded to the cut intervals of 20, 27, 34, 41, 48, 55, 62, and 69 days. The experimental design was a randomized complete block design with three replications. Each experimental unit had 6m2 (3m ×2m). The variables studied included forage production, canopy height, and nutritive value o harvested forage. Forage production varied from 11517 to 12324 kg ha-1; Plant heights from 48.8 to 234 cm; Neutral detergent fiber (NDF) from 68.8% to 71.13%; Acid detergent fiber (ADF) from 36.20% to 44.15%; Crude protein (CP) from 11.43% to 5.85% and in “in vitro” dry matter digestibility (IVDMD) from 63.30% to 47.42%. These values indicated that the nutritive value of canarana erecta lisa was reduced at longer harvest intervals. It is recommended to harvest the grass at 35 days of regrowth favoring productivity, nutritive value and forage digestibility.

scholarly journals Plot size for evaluation of Arabica coffee yield

2019 ◽  
Vol 41 ◽  
pp. e42712
Author(s):  
Bráulio Fabiano Xavier de Moraes ◽  
Fernando Henrique Ribeiro Barroso Toledo ◽  
Kaio Olímpio das Graças Dias ◽  
Vinícius Teixeira Andrade ◽  
Daniel Furtado Ferreira ◽  
...  
Keyword(s):  
Block Design ◽  
Basic Unit ◽  
Parameter Estimates ◽  
Coffee Production ◽  
Resampling Methods ◽  
Arabica Coffee ◽  
Plot Size ◽  
Coffee Yield ◽  
Randomized Complete Block Design ◽  
Set Up

In most cases, in genetic breeding of Arabica coffee, plot size is defined in an empirical manner. It is often based only on the experience of the breeders and the availability of resources, potentially leading to a reduction in precision. Therefore, the aim of this study was to estimate the size of the experimental plot for evaluation of coffee yield. We evaluated two experiments for validation of cultivars with 12 treatments set up in a randomized complete block design with three replicates and plots composed of 50 plants. Each plant was considered as a basic unit. Estimates of ideal plot size were made by maximum curvature of the coefficient of variation, linear-plateau segmented model and by the resampling methods. We discussed the variations in the parameter estimates for different plot sizes. Divergence was seen among the plot sizes estimated by the different methodologies. Increasing the number of plants per plot led to a higher experimental precision to the point that the increase was no longer significant. The plot size recommended for evaluating coffee production is from seven to 19 plants.

Genetic Assessment of Combining Ability for Seed-Yield and Its Related Traits in Soybean [Glycine max (L.) Merrill]

2020 ◽  
Author(s):  
Gbemisola Oluwayemisi Ige ◽  
Godfree Chigeza ◽  
Subhash Chander ◽  
Abebe Tesfaye Abush ◽  
David Kolawole Ojo ◽  
...  
Keyword(s):  
Seed Yield ◽  
Combining Ability ◽  
Agronomic Traits ◽  
Block Design ◽  
Days To Flowering ◽  
Randomized Complete Block Design ◽  
Glycine Max L ◽  
Improvement Programme ◽  
Genetic Assessment ◽  
Made In

Crosses were made in line × tester mating design between a set of five IITA soybean released varieties and three plant introduced (PI) accessions obtained from World Vegetable Center, Taiwan. In order to produce sufficient seeds, F1 crosses were selfed, subsequently F2 populations along with their parents were planted in a randomized complete block design at two locations in Nigeria with three replications. Agronomic traits viz. days to flowering, days to poding, plant height, number of pods/plant and seed yield/plant were measured. Testers and lines showed significant differences for all the measured traits except days to flowering for testers. Considering the significance and magnitude of general combining ability (GCA) effect, line TGx 1988-5F was observed desirable for earliness, while line TGx 1989-19F was the best combiner for number of pods/plant and seed yield/plant. On the other hand, best tester for seed yield was PI 230970. Crosses TGx 1835-10E × PI 459025B and TGx 1987-62F × PI 459025B had significant and highest SCA effect for seed yield/plant. These two crosses appeared to be most promising for soybean yield improvement programme.

scholarly journals Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

2018 ◽  
Vol 22 (1) ◽  
pp. 3-9 ◽  
Author(s):  
Ely S. A. de Oliveira ◽  
Paulo H. S. Cardoso ◽  
Izabelle de P. Sousa ◽  
Anarelly C. Alvarenga ◽  
Márcio N. Rodrigues ◽  
...  
Keyword(s):  
Block Design ◽  
Total Content ◽  
Pennisetum Purpureum ◽  
Chemical Forms ◽  
Potential Toxicity ◽  
Cultivation Period ◽  
Randomized Complete Block Design ◽  
And Behavior ◽  
Critical Limits ◽  
Cu And Zn

ABSTRACT In order to reduce the effect of heavy metals on the biosolid, it is necessary to promote its phytoremediation. It is important to know the total content and chemical forms of these elements in the residue for analyzing its behavior and potential toxicity. Thus, the aim of this study was to evaluate the fractionation and behavior of Cu and Zn in biosolid cultivated with Pennisetum purpureum in different periods. The experiment was carried out using a randomized complete block design. The treatments, with five replicates, corresponded to Pennisetum purpureum cultivation in biosolid for 30, 60, 90, 120 and 150 days after planting. The total contents of Cu and Zn in the biosolid remained below the critical limits established by the CONAMA Resolution 357, and there was a reduction in these values with Pennisetum purpureum cultivation. Furthermore, the increment in the grass cultivation period caused intense reduction of Zn contents bound to organic matter, but there was an increase in soluble Zn and residual Zn. Additionally, there was an intense reduction in the content of Cu bound to sulfides. Therefore, for biosolid phytoremediation purposes, the grass should be cultivated for 150 days.

scholarly journals EVALUATION OF A SPRAY FORMULATION OF CODLEMONE FOR MATING DISRUPTION OF CODLING MOTH (CYDIA POMONELLA) IN APPLE (MALUS PUMILA MILL.)

HortScience ◽  
1996 ◽  
Vol 31 (6) ◽  
pp. 916A-916
Author(s):  
Robert E. Call ◽  
Jack W. Jenkins
Keyword(s):  
Mating Disruption ◽  
Block Design ◽  
Cydia Pomonella ◽  
Codling Moth ◽  
Malus Pumila ◽  
Run Off ◽  
Randomized Complete Block Design ◽  
Malus Pumila Mill ◽  
Spray Formulation ◽  
Made In

Mating disruption of codling moth using codlemone pheromoneemitting twist-ties or cards has become a standard practice in many orchards. This study was initiated to determine the effectiveness of NoMate CM EC, a spray formulation of codlemone pheromone. Treatments were applied 20–21 Apr. 1995 to plots measuring 99 × 244 m of 15-year-old `Golden Delicious' apple trees on seedling rootstock. Trees were spaced 3.7 × 5.5 m and treatments were made in a randomized complete block design replicated three times. Whole trees were sprayed to run-off using a handgun. Treatments were 20.2 g a.i. NoMate CM EC/h and a watered sprayed control. Two pheromonebaited, sticky traps were placed in each replicate to monitor codling moth activity. Moth counts were made 3 days after treatment and continued twice weekly for 4 weeks. Results indicated very little moth activity for the first 14 days of the study in plots treated with NoMate CM EC when compared to the control. However, after the first two weeks differences between treatments were not significant.

scholarly journals Necessity of the inclusion of borders in value of cultivation and use trials in upland rice

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
Marcelo Eduardo Forni De Mattos ◽  
Flávia Barbosa Silva Botelho ◽  
Gabriel Mendes Vilella ◽  
Douglas Goulart Castro ◽  
Bruno Manoel Rezende Melo ◽  
...  
Keyword(s):  
Upland Rice ◽  
Block Design ◽  
Joint Analysis ◽  
Empirical Knowledge ◽  
Experimental Accuracy ◽  
Breeding Programs ◽  
Plot Size ◽  
Methods Of Evaluation ◽  
Randomized Complete Block Design ◽  
Crop Research

Experimental accuracy in crop research is directly affected by the size of plots. For this reason, researchers use empirical knowledge to determine plot size. There are also other important aspects for determining ideal plot size. These include the type of crop and the use, or not, of borders. The objective of this research was to verify the necessity of including border material in the value of cultivation and use trials in breeding programs of upland rice and to evaluate the experimental accuracy with and without the inclusion of borders. The research was conducted in an experimental area at the Federal University of Lavras, located in the State of Minas Gerais, during three harvests (2014/2015, 2015/2016, 2016/2017). Thirteen upland rice strains and methods of evaluation (useful area and border) were evaluated. A randomized complete block design with three replications was used to evaluate grain yield. Individual analyses of variance were performed considering the useful areas and the borders for the three agricultural years. A joint analysis was also performed with the use of a subdivided plot involving the location of the harvest in terms of the useful area and border among the rice strains. It was concluded it is necessary to use borders in the value of cultivation and use trials in breeding programs of upland rice as it contributes to the performance and experimental accuracy of research results.

scholarly journals PENGARUH DOSIS PUPUK NPK TERHADAP PERTUMBUHAN DAN HASIL BAWANG MERAH, KABUPATEN JAYAPURA, PAPUA

2019 ◽  
Vol 44 (2) ◽  
pp. 163
Author(s):  
Rohimah Handayani Sri Lestari ◽  
Fransiskus Palobo
Keyword(s):  
Population Growth ◽  
Plant Height ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Plot Size ◽  
Treatment Dose ◽  
Randomized Complete Block Design ◽  
Npk Fertilizer ◽  
Almost All

Shallots is one of the important commodities in Indonesia. Demand for these commodities always increases along with population growth. To fulfill this demand, the production of shallots must always be increased. One way to increase the production of shallots is by fertilizing. This study aims to determine the dosage of NPK fertilizer which gives the best results for the growth and yield of shallots. The study was carried out in Sentani District, Papua Province, from November 2016 until March 2017.The study used the Randomized Complete Block Design (RCBD) with three treatments NPK Phonska fertilization (NPK 15-15-15 composition) and four repplication. NPK fertilizer used were: 1) NPK 300 kg/ha, 2) 250 kg/ha, and 3) 200 kg/ha. The meterials used were shaloot bulbs Keta Monca cultivar. The plot size was 1 x 5 m, with a spacing of 15 x 15 cm. NPK fertilizer was given at the age of 14 and 30 days after planting respectively with the dose of ½. The variables observed were plant height, leaf number, bulbs number per sample, diameter of bulbs, dry weight bulb per hectare The results showed that the treatment of NPK fertilizer dosage did not give a significant effect on almost all observation variables except on the dry weight of eskip bulb, where the treatment dose of 200 kg/ha NPK fertilizer gave the highest yield compared to other treatments. When observed from the growth components and production components, the dose of NPK fertilizer 200 kg/ha is the most consistent to provide better growth and yield.

scholarly journals Evaluation of Onion Lines for Resistance to Onion White Rot and Onion Maggot

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 830G-831
Author(s):  
M.R. McDonald ◽  
T. Lewis ◽  
I. Goldman
Keyword(s):  
Block Design ◽  
Organic Soil ◽  
White Rot ◽  
Onion Maggot ◽  
Sclerotium Cepivorum ◽  
Randomized Complete Block Design ◽  
Commercial Cultivars ◽  
Low Levels ◽  
Field Plots

Onion lines were evaluated for resistance to Allium white rot (Sclerotium cepivorum Berk.) and onion maggot [Delia antigua (Meig.)] in field plots established on organic soil in the Bradford Marsh, Ontario. White rote valuations were conducted on 20 lines in 1992–1994, with follow-up laboratory trials in 1995. Onion maggot screening was conducted on these same lines in 1993 and 1994. Plots were arranged in a randomized complete-block design with four replications per line. Significant differences in susceptibility to white rot were found in 1992 and 1993, while differences in onion maggot resistance were identified in 1993 and 1994. Commercial cultivars Norstar and Fortress had relatively low levels of onion maggot damage and Fortress demonstrated some tolerance to white rot. Other lines with low levels of white rot infection were 1292-91, 1564-91, 124-93, 116-93, and 117-93, from the breeding program at the Univ. of Wisconsin. Line 1292-91 also had low levels of onion maggot damage. The horticultural characteristics of the onion lines will be discussed.

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