scholarly journals Micronutrientes foliares na goiabeira fertirrigada com biofertilizante e nitrogênio no semiárido

2017 ◽  
Vol 7 (4) ◽  
pp. 523 ◽  
Author(s):  
Elisson Alves Santana ◽  
Jackson Teixeira Lobo ◽  
Renan Nunes Pereira ◽  
Augusto Miguel Nascimento Lima ◽  
Jaílson Cavalcante Cunha ◽  
...  
Keyword(s):  
Experimental Design ◽  
Plant Development ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
Organic Fertilizers ◽  
Experimental Area ◽  
Randomized Complete Block Design ◽  
N Dose ◽  
Mn Concentrations

Required in small amounts, micronutrients play a key role for adequate plant development, which can be supplied by synthetic or organic fertilizers, such as biofertilizers. Thus, an experiment was conducted between July 2014 and August 2015, in the experimental area of the Federal University of the São Francisco Valley, Petrolina-PE, Brazil, to evaluate the micronutrient leaf concentrations of Paluma guava as a function of fertigation with bovine biofertilizer and Nitrogen fertilization. The experimental design was a randomized complete block design (5 x 2) referring to the concentrations of bovine biofertilizer (0, 2.5, 5.0, 7.5 and 10%) and N-fertilizing (50% and 100% of N dose following plant demand), with four replicates and five plants per plot. Only the leaf Mn concentrations are affected by bovine biofertilizer in guava trees fertigated with 100% of recommended N. Leaf concentrations of all the micronutrients (Mn, B, Fe and Zn) are not influenced by nitrogen fertigation. The biofertilizer is efficient in providing Fe.

scholarly journals Upland rice agronomic performance in response to different doses and sources of nitrogen

2020 ◽  
Vol 16 (2) ◽  
pp. 96-100
Author(s):  
Tácio Peres da Silva ◽  
Douglas Goulart Castro ◽  
Laís Moretti Tomé ◽  
Marco Renan Félix ◽  
Antônio Rosário Neto ◽  
...  
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Upland Rice ◽  
Block Design ◽  
Agronomic Performance ◽  
Nitrogen Application ◽  
Randomized Complete Block Design ◽  
The University ◽  
Different Doses

The aim of the present study was to evaluate the response of different doses and sources of nitrogen (N) on agronomic characteristics in upland riceas well astheclimaticand environmentalinfluence on nitrogen fertilization results. Theexperiments were conducted in the University of Lavras, during 2015/2016 and 2016/2017 crop seasons, the plots consisted of 4 lines of 3 linear meters, with spacing among rows of 35 cm and a useful plot of 4.2 m2. The experimental design was a randomized complete block design with three replications in a 4x4x 2factorial design. The factor doseconsisted in 0, 50,100 e 200 kg ha-1N and the factor sourcesconsisted in ammonium nitrate, ammonium sulphate, urea and polycote, totaling 16 treatments. The characteristics evaluatedwere plant height, grain yield, grain chalkness, 1000 grainsweight andyield. It was concluded that the addiction of doses and Nsources didnot change the agronomic performanceof the upland rice crop. There is an influence of the environment on the responses of plants to nitrogen application, being observed different results in different cropseasons.

scholarly journals Effectiveness of giving organic fertilizer with different doses on the growth and yield of red ginger (Zingiber officinale var Rubrum)

2021 ◽  
Vol 905 (1) ◽  
pp. 012063
Author(s):  
Supriyono ◽  
L Septianingtyas ◽  
S Nyoto ◽  
Sulandjari
Keyword(s):  
Effective Dose ◽  
Block Design ◽  
Organic Fertilizer ◽  
Zingiber Officinale ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Experimental Area ◽  
Randomized Complete Block Design ◽  
Red Ginger ◽  
Different Doses

Abstract Red ginger has not been cultivated intensively, so that there was a production decrease in 2018 of 4.24% from 2017. The increase in red ginger cultivation can be done by fertilizing organic fertilizers. This study aimed to obtain an effective dose of organic fertilizer in increasing the growth and yield of red ginger. From March to October 2020, the research was conducted at the UNS experimental area in Wonorejo Village, Jatiyoso, with an altitude of 778 masl. The study was conducted using a randomized complete block design (RCBD) with 1 factor and 5 treatments it is P0 (control), P1 (dose 1 kg. m−2), P2 (dose 1.5 kg. m−2), P3 (dose 2 kg. m−2), and P4 (dose 2.5 kg. m−2). The results showed that the application of organic fertilizer had an effect. The effective dose of organic fertilizer in increasing the growth and yield of red ginger was a dose of 2 kg. m−2.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

Effect of Bio and Organic Fertilizers on Pumpkin's (Cucurbita pepo L.) Leave Content of N, P, and K

2020 ◽  
Vol 10 (1) ◽  
pp. 241-245
Author(s):  
Ammar Hameed Madi ◽  
Jawad A. Kamal Al-Shibani
Keyword(s):  
Cucurbita Pepo ◽  
Sandy Loam ◽  
Block Design ◽  
Organic Fertilizers ◽  
Flowering Stage ◽  
College Of Agriculture ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Loam Soil ◽  
Four Levels

This study was conducted to investigate the effect of bacterial bio-fertilization A. chroococcum and P. putide and four levels of compost (0, 1, 2, 3) tons.h-1 on the leaves content of N.P.K elements. The experiment was carried out in one of the greenhouses of the College of Agriculture - University of Al-Qadisiyah during fall season 2018-2019. It designed in accordance with the Randomized Complete Block Design (RCBD) with three replicates in sandy loam soil. The means of treatments were compared with the least significant difference (LSD) at (5)% probability level. The results present that the treatments of A. chroococcum, P. putide and compost at (3) tons.kg-1 significantly increases the leaves content of K.P.K compared to all other treatments in the flowering stage (4.970, 0.5000, and 4.930) mg.kg-1, respectively. This treatment was followed by the effect of the treatment of A. chroococcum and compost at (3) tons.kg-1, which increases the values of all traits except the leaf content of (P). Bio-fertilizer with P. putide + A. chroococcum significantly increases the leaves' content of P.

scholarly journals Growth Performance of Lettuce Using Fermented Products as Organic Fertilizers

2019 ◽  
Vol 1 (3) ◽  
pp. 65
Author(s):  
Kareen Lynn E. Negado
Keyword(s):  
Growth Performance ◽  
Block Design ◽  
Organic Fertilizers ◽  
Control Groups ◽  
Lettuce Seeds ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
The Mean ◽  
And Control ◽  
Fermented Products

This study evaluates the growth performance of lettuce (Lactuca sativa L.) utilizing various fermented products as organic fertilizers. Growth performance is determined through the plant’s weight and leaves and significant differences in growth among various treatments: (a) fish trash, (b) scrap seaweeds, (c) kangkong, and control groups urea (positive) and water (negative) was also determined. Kangkong leaves are fermented for 10 days, fish trash for 14 days and 1 month for seaweeds. Lettuce seeds are sown before transplanting (15 days after germination) into pots and placed in raised beds. Randomized complete block design is utilized in the experiment. Growth performance is measured through the number of leaves 10, 20, and 30 days after transplant and mass of plant upon harvest. After 30 days, the lettuce was harvested. Based on the findings, the soil and fermented products are acidic and the needed organic matter for optimum growth of lettuce are not sufficient as well as some nutrients of the fermented products. Among the organic fertilizers, kangkong at 30 ml performs best in terms of the growth performance of lettuce. Urea performs best in terms of the mass upon harvest. Significant differences exist in the mean number of leaves of lettuce treated with various amounts of organic fertilizers with the plants that receive urea. Lettuce produce more number of leaves and with the highest mass upon harvest when treated with urea compared with organic fertilizers applied after 30 days from transplant. Keywords: fermented kangkong; fish trash; growth performance; lettuce; scrap seaweeds

scholarly journals Effect of Formulation, Binder and Compaction Pressure of Rice Husk-Bagasse Briquettes on Thermal and Physical Properties

2020 ◽  
pp. 38-53
Author(s):  
Kerich K. Daniel ◽  
Zachary O. Siagi ◽  
Julius O. Ogola
Keyword(s):  
Experimental Design ◽  
Physical Properties ◽  
Rice Husk ◽  
Block Design ◽  
Compaction Pressure ◽  
Ignition Time ◽  
Calorific Value ◽  
Significant Rise ◽  
Lake Basin ◽  
Randomized Complete Block Design

Aims: This study investigated the use of agro-wastes for the production of briquettes. It was carried out to investigate the effect of formulation, binder and compaction pressure of rice husk-Bagasse briquettes on thermal and physical properties. Study Design: The experimental design for this study was 6x5x2 Randomized Complete Block Design Place and Duration of the Study: Rice husks and bagasse were collected from Lake Basin Development Authority’s rice mill and Kibos sugar and Allied company respectively. The binders were sourced locally in Kisumu. The study was conducted between March 2019 and February 2020. The fabrication and laboratory analysis were carried out in the engineering and laboratory departments of Kenya Industrial Research and Development institute, Kisumu. Methodology: The experimental design for this study was 6x5x2 Randomized Complete Block Design. This study involved six formulations ratios (0:100, 20:80, 40:60, 60:40, 80:20, 100:0), five compaction pressure levels (108kPa, 180kPa, 253kPa, 325kPa, 397kPa) and two binders (clay, cassava) They were arranged in Randomize Complete Block Design with three replications per experiment. Results: The briquettes bulk density was in the range of 849 to 1001 kg.m−3, while the calorific value ranged from 5.541 kcal/g for 100% Rice husk clay binder to 7.345 kcal/g 20% Rice Husk cassava binder. Briquettes with blend ratio of 40-60% Rice Husk took longer time to burn. Briquette formulations with clay binder had burning rates ranging from 0.28 g/min to 0.15 g/min while with cassava binder from 0.52 g/min to 0.37 g/min. The ignition time of the briquettes ranged from 62 sec to 95 sec with cassava binder and 110 sec to 191sec with clay binder. The shatter index ranged from 0.94 to 0.99 with cassava and 0.9 to 0.98 with clay binder. Conclusion: Higher compaction pressures and use of cassava binder produced stronger briquettes with higher calorific values. Briquettes with higher percentage of bagasse had low ignition time and low bulk densities. The bulk densities and ignition time showed significant rise with increase in the compaction pressure but inversely affected the burning rate. The binder used significantly affected both the thermal and physical properties of all the formulations.

scholarly journals Performance of irrigated green corn cultivars in different plant populations at sowing

2017 ◽  
Vol 21 (4) ◽  
pp. 267-272
Author(s):  
José C. Soares Neto ◽  
Antônio L. dos Santos Neto ◽  
Wellington M. dos Santos ◽  
Daline T. S. Barros ◽  
Ademária A. de Souza ◽  
...  
Keyword(s):  
Photosynthetic Rate ◽  
Block Design ◽  
Plant Populations ◽  
Corn Hybrids ◽  
Corn Production ◽  
Experimental Area ◽  
Randomized Complete Block Design ◽  
Single Cross ◽  
The City ◽  
Single Cross Hybrids

ABSTRACT This study aimed to evaluate the yield of green corn hybrids grown under irrigation in different plant populations at sowing. The assay was carried out in the experimental area located in the city of Arapiraca, Alagoas State, Brazil, from November 2015 to January 2016. A randomized complete block design (RCBD) was used, in a 2 x 5 factorial scheme with four replicates. A double- and a single-cross hybrid (AG 1051 and BM 3061), which are suitable for green corn production, were cultivated in five spacings between plants at sowing (15.0, 17.5, 20.0, 22.5 and 25.0 cm). The characteristics photosynthetic rate (PR), ear length with rusk (HEL) and without husk (UEL), husked ear weight (HEW), unhusked ear weight (UEW), percentage of marketable ears (%ME) and weight of husk (HW) were evaluated. The double- and single-cross hybrids AG 1051 and BM 3061 showed green ears with commercial standard. The cultivar BM 3061 showed the best results for most of the characteristics related to the performance of green corn (PR, HEL, UEL, UEW, HEW, %ME). The spacing of 17.5 cm between plants at sowing was the most indicated for irrigated green corn cultivation.

scholarly journals PENGGUNAAN SENYAWA OSMOLIT DAN ALKALIN PADA PENYADAPAN TANAMAN KARET (Hevea brasiliensis)

2019 ◽  
Vol 3 (2) ◽  
pp. 110-120
Author(s):  
Mochlisin Andriyanto ◽  
Miftahul Huda Fendiyanto
Keyword(s):  
Experimental Design ◽  
Hevea Brasiliensis ◽  
Block Design ◽  
Randomized Complete Block Design ◽  
The Common ◽  
North Sumatra ◽  
Treatment Application

Stimulants are one of the common ways to increase yield in rubber plants. Recent, the stimulant that is widely used in rubber tapping is ethephon. Ethephon material can prolong the flow of latex so that yield increases. The combination of osmolyte and alkaline compounds is expected to be an alternative stimulant. Therefore, this study aimed to examine the use of osmolytes and alkaline in rubber plants. This research was conducted at the Experimental Design of the Sungei Putih Estate Research, Deli Serdang, North Sumatra in May-September 2016 with PB 260 clones planting year 2010 with a tapping system S/2 D3 Ga1.0 6 / y (m) in panel B0-2. The experimental design used was a Randomized Complete Block Design (RCBD) with 28 combinations of treatments. The observation parameters in this study were yield (g/p/s), girth (cm) before treatment application and yield (g/p/s) and yield (kg/ha/year) after treatment application. The observations showed that the addition of stimulants with osmolyte and alkaline compounds had a significant effect yield on rubber (g/p/s) in the first tapping slices. The 5% osmolyte and 10% alkaline compounds have yield rubber which is comparable to the application of stimulants made from ethephon in the first tapping slices. Application of 5% osmolyte and 10% alkaline compounds can be used as an alternative stimulant in rubber plants.

scholarly journals DESEMPENHO DE Lactuca sativa (ALFACE) DIANTE DO AUMENTO DA DENSIDADE DE CULTIVOS CONSORCIADOS EM HORTAS AGROFLORESTAIS

2020 ◽  
Vol 5 (19) ◽  
pp. 202033
Author(s):  
Aruana Vargas Couto ◽  
Arcângelo Loss ◽  
Giorgini Augusto Venturieri
Keyword(s):  
Experimental Design ◽  
Lactuca Sativa ◽  
Dry Matter ◽  
Block Design ◽  
Planting Density ◽  
Species Succession ◽  
De Se ◽  
Randomized Complete Block Design ◽  
Regulation Services ◽  
Over Time

Lactuca sativa (ALFACE) PERFORMANCE DURING INCREASE IN THE DENSITY OF INTERCROPPED IN AGROFOREST GARDENSRENDIMIENTO DE Lactuca sativa (ALFACE) DURANTE EL AUMENTO DE LA DENSIDAD DE LOS CULTIVOS INTERCALADOS EN LOS JARDINES AGROFORESTALESRESUMOFoi realizado um experimento para verificar se a consorciação de um número crescente de cultivos olerícolas, escolhidos de acordo com a lógica da sucessão de espécies no espaço ao longo do tempo, afetaria a produção de matéria seca de Lactuca sativa (alface) em hortas agroflorestais. O delineamento experimental foi em delineamento em blocos casualizados, com um fator em três níveis, e quatro repetições. A eficiência dos consórcios foi estimada pela matéria seca de L. sativa. Os resultados mostraram que o aumento do número de espécies consorciadas e consequente densidade de plantio não influenciou o parâmetro avaliado. Isto evidencia uma vantagem cultural conferida pelos consórcios sucessionais testados, uma vez que foram conduzidos sem a aplicação de insumos sintéticos e tóxicos, além de se obter uma produção de alimentos de qualidade diferenciada dos convencionais e prestar serviços ecossistêmicos de regulação. Não houve perdas produtivas para L. sativa decorrentes do adensamento dos cultivos.Palavras-chave: Agrofloresta; Sucessão Ecológica; Agricultura Sintrópica.ABSTRACTAn experiment was carried out to verify if the intercropping of a growing number of vegetables, chosen according to the logic of species succession over time, would affect the production of dry matter of Lactuca sativa (lettuce) in agroforestry gardens. The experimental design was a randomized complete block design with one factor at three levels and four replications. Consortium efficiency was estimated by L. sativa dry matter. The results showed that the increase of the number of intercropping species and consequent planting density did not influence the evaluated parameter. This evidences a cultural advantage conferred by the successional consortiums tested, since without the application of synthetic and toxic inputs, besides obtaining a production of quality differentiated of food conventional and providing ecosystem regulation services. There were no productive losses for L. sativa due to the densification of crops.Keywords: Agroforestry; Ecological Succession; Syntropic Agriculture.RESUMENSe llevó a cabo un experimento para verificar si el cultivo intercalado de un número creciente de verduras, elegidos de acuerdo con la lógica de sucesión de especies a lo largo del tiempo, afectaría la producción de materia seca de Lactuca sativa (lechuga) en jardines agroforestales. El diseño experimental fue un diseño de bloques completos al azar con un factor en tres niveles y cuatro repeticiones. La eficiencia del consorcio fue estimada por la materia seca de L. sativa. Los resultados mostraron que el aumento del número de especies intercaladas y la consiguiente densidad de siembra no influyeron en el parámetro evaluado. Esto evidencia una ventaja cultural conferida por los consorcios sucesionales probados, ya que se realizaron sin la aplicación de insumos sintéticos y tóxicos, además obtener producción de alimentos de calidad diferenciada de los convencionales y la prestación de servicios de regulación del ecosistema. No hubo pérdidas productivas para L. sativa debido a la densificación de los cultivos.Palabras clave: Agroforestería; Sucesión Ecológica; Agricultura sintrópica. 

scholarly journals EFFECT OF NITROGEN ON THE ACCUMULATION AND REUTILIZATION OF DRY MASS IN GRAIN SORGHUM

AGROFOR ◽  
2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Svetla KOSTADINOVA ◽  
Zivko TODOROV ◽  
Ivan VELINOV
Keyword(s):  
Experimental Design ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
Dry Mass ◽  
Grain Sorghum ◽  
Strong Positive Correlation ◽  
Nitrogen Rate ◽  
Strong Negative Correlation ◽  
Translocation Efficiency ◽  
Mass Accumulation

Accumulation and reutilization of dry mass until anthesis and during a grain fillingperiod of sorghum in response to nitrogen fertilization in rates 0, 60, 120, 180, 240and 300 kg N.ha-1 was studied in a field experiment. Grain sorghum hybrid ECAlize was grown under not- irrigated conditions in the experimental field ofAgricultural University of Plovdiv, Bulgaria. The experimental design was arandomized, complete block design with four replications with a size ofexperimental plots of 20 m2 after wheat as predecessor. Standard farming practicesfor the region of Southern Bulgaria were applied. It was established that nitrogenfertilization significantly increased the amount of accumulated dry mass at anthesisand total above ground dry mass at maturity compared to N0. Not significant effectof higher rates (180, 240 and 300 kg N.ha-1) on the dry mass accumulation ofsorghum was found. Average post anthesis net dry mass accumulation was 3291kg.ha-1 and its amount increased in parallel with the nitrogen rate up to N180. Thehighest dry mass translocation, translocation efficiency, and contribution of preanthesisassimilations of the grain was established at nitrogen rate N120 with values2073 kg.ha-1, 25.0 % and 41,8 %, respectively. Growth of sorghum at highernitrogen rates N180, N240, N300 significantly decreased efficiency of dry masstranslocation and contribution of pre-anthesis assimilations of the grain. Nitrogenfertilization had very strong negative correlation with dry mass translocationefficiency (-0.860*) and contribution of pre-anthesis assimilations of the grain (-0.863*). Very strong positive correlation (0.988**) was found between dry masstranslocation efficiency and contribution of pre-anthesis assimilations of the grain.

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