scholarly journals Agronomic performance of arugula/nira intercropping in different cultivation arrangements

2020 ◽  
Vol 38 (3) ◽  
pp. 329-333
Author(s):  
Marcelo de Almeida Guimarães ◽  
Benedito Pereira Lima Neto ◽  
Hozano de Souza Lemos Neto ◽  
Ana Régia Alves de Araújo Hendges ◽  
Caris dos Santos Viana ◽  
...  
Keyword(s):  
Block Design ◽  
Productive Efficiency ◽  
Agronomic Performance ◽  
Land Use Efficiency ◽  
Relative Contribution ◽  
Performance Indexes ◽  
Randomized Block Design ◽  
Production Cycles ◽  
Use Efficiency ◽  
Productive Traits

ABSTRACT Spatial planning of cultivation arrangements is essential to ensure the superiority of intercropping when compared with monocrop. Thus, the aim of this study was to evaluate the agronomic performance of arugula/nira intercropping in different cultivation arrangements. The experiment was carried out in a randomized block design, in a split plot scheme, the plots represented the cultivation arrangements and the subplots the production cycles (winter and spring). The arrangements were T1= arugula monoculture; T2= two rows of arugula alternating with three rows of nira (2R:3N); T3= two rows of arugula alternating with two rows of nira (2R:2N); T4= two rows of arugula alternating with one row of nira (2R:1N); T5= nira monoculture. Productive traits and agronomic performance indexes of the intercropping systems were evaluated. Single arugula cultivation and 2R:1N intercropping achieved similar productivity, 2R:1N intercropping showed the highest productive efficiency, with land-use efficiency of 1.16%, though arugula showed a relative contribution of 84.3% in production yield of the system. We concluded that 2R:1N intercropping can be used to optimize the use of productive inputs in arugula cultivation.

scholarly journals AGRONOMIC PERFORMANCE AND BIOLOGICAL EFFICIENCY OF KALE INTERCROPPED WITH SPICE SPECIES

2019 ◽  
Vol 32 (1) ◽  
pp. 7-15
Author(s):  
Ana Régia Alves de Araújo Hendges ◽  
Marcelo de Almeida Guimarães ◽  
Júlio César Dovale Silva ◽  
Benedito Pereira Lima Neto
Keyword(s):  
Block Design ◽  
Efficiency Index ◽  
Productivity Index ◽  
Biological Efficiency ◽  
Agronomic Performance ◽  
System Productivity ◽  
Land Use Efficiency ◽  
Relative Contribution ◽  
Randomized Block Design ◽  
Productive Potential

ABSTRACT Intercropping is a management strategy for the sustainability of agricultural systems, and is suitable for the production of vegetables. Kale is predominantly grown singly, but field observations have indicated that this crop has satisfactory productive potential when grown in intercrops with other vegetables. The objective of this work was to evaluate the agronomic performance and biological efficiency of kale plants intercropped with spice species. The experiment was carried out at the Didactic Horta of the Federal University of Ceará, Fortaleza, state of Ceará, Brazil. The experiment was conducted in a randomized block design with five replications. The treatments consisted of kale grown singly and intercropped with spice species (chives, coriander, basil, and parsley) and these spice species grown singly. The fresh and dry weights of the kale leaves, and the shoot of the spice species were evaluated. The biological efficiency was evaluated by the land use efficiency index (LUE), relative contribution of the kale crop to the LUE, area time equivalent ratio, and system productivity index. The intercropping of kale with parsley resulted in the highest fresh, and dry weights of kale leaves, showing the highest agronomic efficiency.

scholarly journals Yield of ‘Prata-Anã’ banana plants under water deficit and high plant density

2020 ◽  
Vol 42 (5) ◽  
Author(s):  
Diogo Barreto Magalhães ◽  
Sérgio Luiz Rodrigues Donato ◽  
Marcelo Rocha dos Santos ◽  
Cleiton Fernando Barbosa Brito ◽  
Varley Andrade Fonseca ◽  
...  
Keyword(s):  
Plant Density ◽  
Block Design ◽  
Irrigation Level ◽  
Randomized Block Design ◽  
High Plant Density ◽  
Plant Densities ◽  
Production Cycles ◽  
Number Of Leaves ◽  
Use Efficiency ◽  
Irrigation Levels

Abstract Yield-improving and water-saving techniques assume great importance in the cultivation of banana plants under semiarid regions, prone to greater climate variability. The objective of this study was to evaluate yield and water-use efficiency (WUE) response of ‘Prata-Anã’ banana plants to combinations of plant densities and irrigation levels: three irrigation levels, 50, 75 and 100% crop evapotranspiration (ETc), and four plant densities, 1,666 (3.0 x 2.0 m), 2,083 (3.0 x 1.6 m), 2,666 (3.0 x 1.25 m) and 3,333 (3.0 x 1.0) plants ha-1, evaluated in two production cycles. The treatments were laid out in a randomized block design with four replicates. Increasing plant density up to 3,333 plants ha-1 induced reductions in number of leaves at harvest and some yield components; also, longer cycles, and increased yields were observed while maintaining fruit marketable size, regardless of the irrigation level used. Using an irrigation level at 50%ETc and a plant density of 3,333 plants ha-1 led to an increase in WUE of 313.92% in the first cycle and 295.27% in the second cycle compared with 1,666 plants ha-1 irrigated at 100% ETc. Higher yields and WUE can be achieved by using a plant population density of 3,333 plants ha-1 and irrigation levels below 100%ETc.

Intercropped Corn–Soyabean Density Studies. I. Yield Complementarity

1985 ◽  
Vol 21 (1) ◽  
pp. 41-51 ◽  
Author(s):  
D. H. Putnam ◽  
S. J. Herbert ◽  
A. Vargas
Keyword(s):  
Land Use ◽  
Dry Matter ◽  
Block Design ◽  
Total Yield ◽  
Low Density ◽  
Systematic Design ◽  
Land Use Efficiency ◽  
Randomized Block Design ◽  
Matter Production ◽  
Use Efficiency

SUMMARYIntercropped corn and soyabean were grown in a randomized block design (RBD) and a systematic design (SD) in 1981 and 1982 to evaluate total yield, yield complementarity, crop competition and land-use efficiency as affected by corn and soyabean densities. In the RBD, three corn density treatments were applied to corn–corn–soyabean–soyabean, corn–corn–soyabean, and corn–soyabean intercrop row patterns and to monocultures. In the SD, 9 or 10 corn densities were factorially combined with up to 13 soyabean densities in a corn–soyabean row pattern (91 cm spacing). In the RBD, total intercrop yields were similar to corn monoculture yields (60.8 to 62.7 t ha−1 in 1981) in the corn–corn–soyabean and corn–soyabean patterns at high corn densities but were less at low density. The corn–corn–soyabean–soyabean pattern yielded 87% of the corn monoculture at high density in 1982. These results were confirmed in the SD, where total intercrop yields were highly responsive to corn density and poorly responsive to soyabean densities. Both experiments indicated that high corn row densities are needed to maintain yields in corn–soyabean intercrops, possibly higher than the levels studied. Land equivalent ratios were above 1.0 for all but the low density corn–corn–soyabean–soyabean pattern in the RBD. The ability of an intercrop with as many as half the corn rows replaced by soyabean to produce yields similar to corn monoculture indicates a biological complementarity for dry matter production in the mixtures.

scholarly journals Yield and water use efficiency of cactus pear under arrangements, spacings and fertilizations

2019 ◽  
Vol 23 (6) ◽  
pp. 413-418 ◽  
Author(s):  
Alex A. Lédo ◽  
Sérgio L. R. Donato ◽  
Ignacio Aspiazú ◽  
João A. da Silva ◽  
Paulo E. R. Donato ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Block Design ◽  
Dry Mass ◽  
Mineral Fertilization ◽  
Cactus Pear ◽  
Green Mass ◽  
Randomized Block Design ◽  
Production Cycles ◽  
Use Efficiency

ABSTRACT Cactus pear is adapted to semi-arid conditions. In this study, the objective was to evaluate the water use efficiency and green and dry mass yields of the cultivar Gigante under different fertilization rates and sources in three production cycles, spacing and planting arrangement. Seventy two treatments, involving two types of arrangements in the plots, three spacings in the subplots and 12 types of fertilization in the sub-subplots were arranged in a split-split-plot scheme, using randomized block design with three repetions. Dry mass content decreases while water use efficiency and green mass and dry mass yields increase from the first to the third cycle. It is feasible to use planting arrangements in triple or quadrupling rows which allow increasing the mechanization index of the crop. Organomineral fertilization with 30 or 60 Mg ha-1 year-1 of bovine manure combined with 150-300-600 kg ha-1 year-1 of N-P2O5-K2O and 300-300 kg ha-1 year-1 of P2O5-K2O, respectively; organic fertilization with 90 Mg ha-1 year-1 of manure; and mineral fertilization with 300-300-600 kg ha-1 year-1 of N-P2O5-K2O ensure green mass and dry mass yields greater than 200 and 15 Mg ha-1 cycle-1, respectively, and water use efficiency greater than 20 kg ha-1 mm-1 in ‘Gigante’ cactus pear. It is concluded that yields of this magnitude are ensured with application of about 300-300-300 kg ha-1 year-1 of N-P2O5-K2O using organic, organomineral or mineral sources.

scholarly journals Agronomic performance of ‘BRS Princesa’ banana under fertigation and mulching

2021 ◽  
Vol 42 (3) ◽  
pp. 979-998
Author(s):  
Elves Almeida Souza ◽  
◽  
Eugênio Ferreira Coelho ◽  
Marcelo Rocha Santos ◽  
Diego Magalhães Melo ◽  
...  
Keyword(s):  
Irrigation System ◽  
Block Design ◽  
Sprinkler Irrigation ◽  
Bare Soil ◽  
Sprinkler System ◽  
Agronomic Performance ◽  
Randomized Block Design ◽  
Potassium Use Efficiency ◽  
Use Efficiency ◽  
Drip Fertigation

Banana is one of the most produced fruit crops in Brazil and has great economic, social and nutritional importance. Factors such as water availability and well-managed fertilization are fundamental to achieving profitable yields. The aim of this study was to examine the agronomic performance and water use efficiency of ‘BRS Princesa’ banana under combinations of irrigation systems, fertilization methods and mulching, during three production cycles. The experiment was laid out in a randomized-block design with four replicates. Treatments consisted of a combination of the localized irrigation system, fertilization strategy and mulching, as follows: Drip irrigation with manual fertilization; Micro-sprinkler irrigation with manual fertilization; Drip fertigation with mulch; Drip fertigation without mulch; Micro-sprinkler fertigation with mulch; and Micro-sprinkler fertigation without mulch. The plants were irrigated every three days, using three 4-L h-1 drippers per plant or a 64-L h-1 micro-sprinkler for every four plants. The following variables were analyzed: number of leaves, plant height, pseudostem circumference, number of hands, hand yield, water and nutrient (nitrogen and potassium) use efficiency and earliness. The micro-sprinkler system provided a greater pseudostem circumference without the presence of mulch. Plants under micro-sprinkler fertigation with mulching grew taller. The banana yield was higher when fertigation was used than with manual fertilization, regardless of the irrigation system. Plants grown in mulched soil were more productive than those grown in bare soil. The use of mulch increased water, nitrogen and potassium use efficiency when compared with cultivation in bare soil. Drip-irrigated plants showed earlier production than those irrigated with micro-sprinklers.

scholarly journals Effect of Intercropping on Mycorrhizal Populations, Growth, and Yield on Several Varieties of Maize (Zea mays L.) and Soybeans [Glycine max (L.) Merr.] in Dryland North Lombok, Indonesia

2021 ◽  
Vol 913 (1) ◽  
pp. 012008
Author(s):  
W Astiko ◽  
N M L Ernawati ◽  
I P Silawibawa
Keyword(s):  
Population Growth ◽  
Zea Mays L ◽  
Block Design ◽  
Grain Weight ◽  
Growth And Yield ◽  
Land Use Efficiency ◽  
Randomized Block Design ◽  
Maize Varieties ◽  
Glycine Max L ◽  
Use Efficiency

Abstract Drylands plays an important role to increase agricultural production. In addition, it also contributes to land use efficiency. The intercropping system provides a solution to increase agriculture productivity in dryland. The objective of this research was to determine the mycorrhizal population, growth, and crop yield of several maize and soybean varieties grown in the field using an intercropping system. The methodology conducted in this study involved a randomized block design with 5 treatment intercropping varieties combination of maize and soybean, namely V1=NK212: Biosoy I, V2=Bima 20 URI: Dega I, V3=NASA 29: Detap, V4=Bisi 18: Biosoy II, V5=Srikandi Kuning: Anjasmoro. Each treatments were repeated three times to obtain 15 experimental plots. The results showed that the mycorrhizal population, growth, and yield of Bisi 18 maize intercropping and Biosoy II soybean varieties obtained the highest value. Mycorrhizal population, wet and dry biomass weight of root, shoots, yield, the highest was obtained in the intercropping of maize varieties Bisi 18/soybean variety Biosoy II. The highest yield was given by the intercropping of maize varieties Bisi 18 and soybean varieties Biosoy II with maize dry seed grain weight 7.4 tons/ha and a soybean dry seed grain weight of 0.94 tons/ha.

scholarly journals CHICORY AND ARUGULA IN INTERCROPPING WITH COLLARD GREENS1

2021 ◽  
Vol 34 (4) ◽  
pp. 772-779
Author(s):  
ARTHUR BERNARDES CECÍLIO FILHO ◽  
MARIA JOSÉ YAÑEZ MEDELO ◽  
SARA CARALINE DE PONTES ◽  
CAMILA SENO NASCIMENTO
Keyword(s):  
Land Use ◽  
Crop Yield ◽  
Block Design ◽  
Yield Losses ◽  
Collard Greens ◽  
Land Use Efficiency ◽  
Randomized Block Design ◽  
Use Efficiency ◽  
Collard Green ◽  
Agricultural Profitability

ABSTRACT Vegetable intercropping systems use complementarity between species to increase agricultural profitability. This study evaluated the effects of intercropping chicory and arugula species with collard greens on crop yield and land use efficiency (LUE). Six treatments, consisting of species planted as monocultures or intercropped in various combinations, were evaluated in a randomized block design with four replicates. The cultivars ‘Top Bunch’ (collard greens), ‘Pão de Açúcar’ (chicory) and ‘Folha Larga’ (arugula) were used. The yield of collard greens in monoculture did not differ from those obtained when they were intercropped with chicory, arugula, or both species, whereas chicory and arugula yields were higher in monoculture. However, even with yield losses for chicory and arugula in intercropping, LUE indices were greater than 1.0 in all intercropping systems, indicating their viability. The highest LUE index (2.41) was obtained in the chicory-arugula-collard green intercropping system.

scholarly journals Nitrogen topdressing and application ways of fluazifop-p-butyl + fomesafen in weed control and agronomic performance of common bean

2015 ◽  
Vol 87 (4) ◽  
pp. 2301-2307 ◽  
Author(s):  
MATHEUS G. SILVA ◽  
ORIVALDO ARF ◽  
PAULO E. TEODORO
Keyword(s):  
Common Bean ◽  
Weed Control ◽  
Yield Components ◽  
Dry Matter ◽  
Block Design ◽  
Agronomic Performance ◽  
Randomized Block Design ◽  
Bean Yield ◽  
Leaf N Content ◽  
Leaf N

ABSTRACT The objective of this study was to investigate the effect of interaction between nitrogen topdressing and different application ways (active ingredients) a.i. fluazifop-p-butyl + fomesafen in weed control and agronomic performance of common bean. The experiment was conducted during winter 2003 in Selvíria/MS. The experimental design used was a randomized block design with four replications in a factorial scheme 2x7. The first factor was composed by the absence or presence of nitrogen topdressing, while the second factor consisted of different application ways of fluazifop-p-butyl + fomesafen. The following variables were measured: leaf N content, dry matter of plants, yield components (number of pods plant-1, number of grains plant-1, the average number of grains pod-1 and mass of 100 grains), grain yield, phytotoxicity and weed control percentage. The nitrogen topdressing with 75 kg ha-1provided higher dry matter of plants, higher weed control and higher common bean yield of irrigated winter. In the absence of nitrogen topdressing in the application of urea before or together to fluazifop-p-butyl + fomesafen increased their effectiveness in controlling weeds without interference in the agronomic performance of common bean.

scholarly journals MORPHOLOGICAL AND PRODUCTIVE CHARACTERIZATION OF FORAGE CACTUS VARIETIES

2015 ◽  
Vol 28 (3) ◽  
pp. 230-238 ◽  
Author(s):  
PHILIPE LIMA DE AMORIM ◽  
JANAINA AZEVEDO MARTUSCELLO ◽  
JOSÉ TEODORICO DE ARAÚJO FILHO ◽  
DANIEL DE NORONHA FIGUEIREDO VIEIRA DA CUNHA ◽  
LIANA JANK
Keyword(s):  
Block Design ◽  
Morphological Characteristics ◽  
Correlation Coefficients ◽  
Dry Mass ◽  
Negative Effects ◽  
Breeding Programs ◽  
Area Index ◽  
Promising Alternative ◽  
Randomized Block Design ◽  
Use Efficiency

ABSTRACT: Cultivars of the genus Nopalea are known in Brazil for being tolerant to cochineal carmine attacks, thus making the cultivation of this genus a promising alternative for mitigating the negative effects of this insect on the production of biomass. With the objectives of characterizing morphologically spineless forage cactus varieties and identify morphological characteristics that may be the focus in spineless forage cactus breeding programs, an experiment was conducted in a completely randomized block design with 11 treatments and four replications. The variety Alagoas showed the highest values of weight, area and volume of cladodes. The varieties Negro Michoacan F7 and V7, Tamazunchale V12 showed the highest values of the cladode area index, the total volume of cladodes and total fresh mass production. The varieties Negro Michoacan V7 and F7 presented the highest water use efficiency and dry mass yield. Cladode volume showed the highest correlation coefficients with the fresh weight of cladodes. Aiming the release of varieties for biomass production, varieties Negro Michoacan F7, V7 and Tamazunchale V12 may substitute the Miúda variety. The number and cladode area index may be used as criteria for selection of superior varieties in breeding programs.

scholarly journals Production and economic viability of banana managed with cover crops

2016 ◽  
Vol 20 (12) ◽  
pp. 1078-1082
Author(s):  
Francisca E. L. Barbosa ◽  
Claudivan F. de Lacerda ◽  
Aiala V. Amorim ◽  
Raimundo N. T. Costa ◽  
José A. da Silva ◽  
...  
Keyword(s):  
Cover Crops ◽  
Block Design ◽  
N Fertilization ◽  
Economic Viability ◽  
Crop Evapotranspiration ◽  
Pueraria Phaseoloides ◽  
Banana Production ◽  
Conventional Management ◽  
Randomized Block Design ◽  
Production Cycles

ABSTRACT This research aimed to evaluate the yield and economic viability of three crop cycles of the banana cv. ‘Prata Anã’ in association with perennial herbaceous legumes, natural vegetation, or compared with the conventional management. The research was conducted using a complete randomized block design with split-split plots and four replicates. The plots were formed by four irrigation depths: 50, 75, 100 and 125% of crop evapotranspiration, and the subplots by cover crops (Calopogonium muconoides, Pueraria phaseoloides, and natural cover without N addition) or no cover crops with addition of N fertilization (conventional management). The subsubplots were formed by the second, third and fourth banana production cycles. Yield and economic viability of the cultivation were estimated for a period of seven years. The conventional management promoted greater yield and economic viability in the cultivation of ‘Prata Anã’ banana, due to the N fertilization. Managements with leguminous cover crops were also economically viable, but they should be investigated in combination with N fertilization and compared with the conventional method.

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