Production components of crambe in paraiba semi-arid region with nitrogen fertilization and different spacings

Crambe (Crambe abyssinica H.), a promising species in the production of biodiesel, has low planting cost, high oil content and easy extraction, besides being an alternative for the crop rotation system. The objective of this study was to evaluate the effects of nitrogen fertilization and line spacing on the production components and yield of the crambe crop under semi-arid conditions. The study was conducted under field conditions in the experimental area of the National Semi-Arid Institute-INSA, located in the city of Campina Grande-PB. The experimental design was a randomized complete block design in 4 x 2 factorial scheme, consisting of four nitrogen doses (30, 60, 90, 120 kg ha-1) with two spacings between planting lines (0.20 and 0.40 meters) with three replications, totaling 24 experimental plots. The evaluated parameters were: number of siliques per plant, dry weight of shoots, number of branches (primary and secondary), primary stem length, number of siliques per stem, mass of 1000 grains and productivity. The data were submitted to analysis of variance, in which the nitrogen doses (quantitative factor) were compared by regression analysis. The different spacings were compared by means of a t-test at the 0.05 probability level by using statistical software SISVAR version 5.2. Nitrogen fertilization at 0.40 m spacing between the planting lines led to the best results for the production components, and the highest productivity was obtained at 0.20 m spacing of with nitrogen fertilization of 120 kg ha-1.

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Nutrient support via fertigation with domestic effluent and growth of cotton

Semina Ciências Agrárias ◽

10.5433/1679-0359.2020v41n4p1135 ◽

2020 ◽

Vol 41 (4) ◽

pp. 1135

Author(s):

Francisco Gonçalo Filho ◽

Miguel Ferreira Neto ◽

Cleyton dos Santos Fernandes ◽

Francisco Vanies da Silva Sá ◽

Nildo da Silva Dias ◽

...

Keyword(s):

Block Design ◽

Wastewater Reuse ◽

Arid Environment ◽

Domestic Sewage ◽

Randomized Block Design ◽

Cotton Plants ◽

Phosphate Fertilization ◽

Semi Arid Region ◽

Domestic Effluent ◽

Semi Arid

Because of climatic problems in the Brazilian semi-arid region, it is of fundamental importance to seek a culture that considers water scarcity and available natural resources. Thus, a randomized block design, with subdivided plots and six replications, was carried out in the experimental area of the treatment and wastewater reuse station of the Milagres Settlement, Apodi, Brazil, with the objective of evaluating cultivation of herbaceous cotton (Gossipyum hirsutum) fertigated with domestic sewage treated in a semi-arid environment. Two cultivation cycles were carried out, and the cotton plants were fed with three different solutions containing treated domestic sewage (TDE) plus supply water (PSW), to supply the crop evapotranspiration (ETc) (100% PSW – control, 50% PSW + 50% TDE and 100% TDE), with and without phosphate fertilization in pre-planting. The contribution of nutrients to the soil and plant growth were analyzed. The results indicated that the wastewater presents potential fertilizer, reaching to the soil amounts of some nutrients exceeding the cotton’s needs, when 100% of the ETc was supplied via fertigation with domestic effluent, resulting in an increase in the growth rates of the plants. There was no interaction between the percentages of wastewater and phosphate fertilization in pre-planting. Phosphorus alone promoted significant variation only in the first cycle, indicating that there is a residual fertigation effect with domestic effluent on the nutrient supply.

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Response of Rapes (Brassica napus L.) to Nano- Iron Fertilization under semi-arid Region conditions

Bionatura ◽

10.21931/rb/2019.04.01.3 ◽

2019 ◽

Vol 4 (1) ◽

Author(s):

Lamiaa A. Mutlag ◽

Nagam A. Meshaimsh ◽

Hasan H. Mahdi ◽

Raghad S. Mouhamad ◽

Hasan H. Khamat ◽

...

Keyword(s):

Brassica Napus ◽

Agricultural Research ◽

Block Design ◽

Nutrient Content ◽

Brassica Napus L ◽

Arid Conditions ◽

Significant Difference ◽

Randomized Complete Block Design ◽

Semi Arid Region ◽

Semi Arid

The field experiment was conducted in the season of 2017-2018 at the Agricultural Research Department-AL-Azafrinih/Baghdad-Iraq. This study aimed to determine the effect of adding the Foliar Fe fertilization (Nano-Fe) and ground fertilization of (N, P) in the growth and production yield of rapes (Brassica napus L.). The experiment included three levels of foliar fertilization (Nano-Fe) that is (0, 5, 10 Kg. ha-1) and one level of ground fertilization (N 100 Kg. ha-1, P 250 Kg. ha-1). The experiment designed according to Randomized Complete Block Design (R.C.B.D) with three replications each parameter. The studied traits were nutrients content (macro-micro) in seeds and soil, the percentage of protein, oil, and carbohydrate. All data were analyzed and used statistically. Results showed a significant difference between Nano-Fe fertilization and nutrient content (N, Mn, K, Ca, Mg, S, and Cu), pH in soil at the level of 10 kg. ha-1, compared to no-fertilization. Moreover, the significant difference between Nano-Fe fertilization, yield (1425.6 kg. ha-1), the percentage of oil (52.16%), protein content in seeds (46.5%), carbohydrate (26.8%), Nutrient content N and P in seeds at the level of 10 kg. ha-1, compared to no-fertilization and the nutrient content (Ca, Mg, Fe) in seeds at levelof5 kg. ha-1, compared to no-fertilization. Current results suggested that Nano-Fe fertilization at the level of 10 kg. ha-1 can be adopted as the best level for rapes (Brassica napus L.) cultivation under semi-arid conditions.

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(126) Response of Six Begonia Species to Different Substrate EC

HortScience ◽

10.21273/hortsci.40.4.1085d ◽

2005 ◽

Vol 40 (4) ◽

pp. 1085D-1085

Author(s):

Ka Yeon Jeong ◽

Claudio Pasian ◽

David Tay

Keyword(s):

Growth Parameters ◽

Block Design ◽

Growth Parameter ◽

Dry Weight ◽

Maximum Growth ◽

Stem Length ◽

Stem Cuttings ◽

Limited Information ◽

Spad Value ◽

Parameter Values

There is limited information on optimal substrate EC level for begonia species (noncultivated hybrids). The objective of this study was to evaluate the response of six species to different substrate EC in a greenhouse. Begonia albopicta, B. cucullata var. cucullata, B. echinosepala var. elongatifolia, B. holtonis, B. fuchsioides (red) and B. fuchsioides (pink) plants were propagated by stem cuttings, and transplanted into plastic pots using a soilless mix. Five concentrations (20, 80, 200, 400, and 600 mg·L-1 N) of 17–5–17 fertilizer were applied as irrigation water to derive the five substrate EC levels. This experiment was a factorial randomized complete-block design. Substrate EC was measured weekly using the PourThru method and averaged for each treatment of each species. Inflorescence number, the longest stem length, SPAD readings, leaf area, and dry weight of each plant were measured as growth parameters. There were significant responses to substrate EC level and species on begonia growth parameters. The highest growth parameters of B. albopicta and B. cucullata were obtained at EC 5.7 and 6.6 mS·cm-1, respectively. The maximum growth of B. echinosepala and B. holtonis was observed at 2.6 and 3.0 mS·cm-1, respectively. B. fuchsioides, grown at 1.2 mS·cm-1, had the best growth parameter values. As EC level increased, SPAD value for B. fuchsioides (pink) and B. holtonis also increased. The highest SPAD reading was observed at EC 3.7 mS·cm-1 for B. albopicta, EC 6.6 mS·cm-1 for B. cucullata, EC 2.6 mS·cm-1 for B. echinosepala, and EC 4.1 mS·cm-1 for B. fuchsioides (red). Plant mortality of several begonia species was observed when grown at EC value above 6.4 or below 4.4 mS·cm-1.

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Influence of Sowing Date on Growth and Yield Components of Sunflower (Helianthus Annuus L.) in Semi-Arid Zone

Journal of Agronomy Research ◽

10.14302/issn.2639-3166.jar-19-2961 ◽

2019 ◽

Vol 2 (2) ◽

pp. 36-42

Author(s):

Hilwa, D. Abu Anga ◽

Wael A. Marajan ◽

Abu backer H. Mohammed ◽

Baha Eldin M Idris

Keyword(s):

Plant Height ◽

Yield Components ◽

Arid Zone ◽

Block Design ◽

Dry Weight ◽

Sowing Date ◽

Growth And Yield ◽

Area Index ◽

Head Diameter ◽

Semi Arid

The main objective of this study was to quantify the influence of sowing date on growth and yield components of hybrid sunflower (Hysun33) cultivar in semi-arid zone. This experiment was conducted during the seasons 2014/2015-2015/2016 at the farm of the College of Agricultural Studies, Sudan University of Science and Technology, Shambat, Khartoum- Sudan. The experiment was arranged in randomized complete block design (RCBD) with four replications and three treatments. Different parameters were considered including plant height, leaf area index (LAI), filled sees number/head, head diameter, dry weight and yield components. The collected data were statistically analyzed. The results revealed that crop sown in May and July showed significant increase in plant height, LAI, head diameter, dry weight, field seed number/head, weight of 100 seeds; yield, and yield; compared to crop sown in March. However, crop sown in the second season showed an increase in growth and yield components compared to the crop of the first season.

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Analysis of variability, heritability, and interrelationships among grain yield and related characters in barley advanced lines

Genetika ◽

10.2298/gensr1601073a ◽

2016 ◽

Vol 48 (1) ◽

pp. 73-85 ◽

Cited By ~ 3

Author(s):

Jafar Ahmadi ◽

Behroz Vaezi ◽

Alireza Pour-Aboughadareh

Keyword(s):

Grain Yield ◽

Environmental Conditions ◽

Arid Region ◽

Block Design ◽

Genetic Material ◽

Grain Weight ◽

Peduncle Length ◽

Semi Arid Region ◽

Pure Lines ◽

Semi Arid

The main goal of this study was to improve pure lines for low input agricultural areas of the semi-arid region of Iran and similar environmental conditions. Forty barley pure lines provided from ICARDA along with three check cultivars were evaluated under rain-fed conditions in a semi-arid region of Iran during two years (2011-2013). The experiments were conducted in a randomized complete block design with four replications to estimate genetic variation and heritability for agro-morphological traits. The highest values of phenotypic and genotypic coefficients of variation were observed for the number of grains per spike followed by peduncle length, early vigor and grain yield. The broad heritability estimates ranged from 24% for grain yield to 96% for the number of grains per spike. The highest and lowest expected genetic advance, observed for days to physiological maturity and the number of grains per spike, respectively. Results of stepwise regression and path analysis showed that hectoliter grain weight and thousand grain weight exhibited the highest direct effects on grain yield, respectively. Comparisons between the pure lines and check cultivars indicated that out of 40 pure lines, 27 lines had a higher grain yield. Also, the pure lines No. 29, 13, 9 and 33 were identified as the superior lines for semi-arid environmental conditions. Our results indicate that check cultivars could be improved by selecting for pure lines with taller peduncle and the number of grains per spike, but with heavier grains. Therefore, these lines can be used as genetic material to broaden the genetic basis of barley breeding programs all over the world.

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Water and nitrogen water use efficiency in forage palm irrigated with salt water in the Neossolo

Australian Journal of Crop Science ◽

10.21475/ajcs.20.14.04.p2404 ◽

2020 ◽

pp. 683-690

Author(s):

Patrícia Ferreira da Silva ◽

Rigoberto Moreira de Matos ◽

José Dantas Neto ◽

Vitória Ediclécia Borges ◽

Thiago Galvão Sobrinho ◽

...

Keyword(s):

Nitrogen Use Efficiency ◽

Nitrogen Fertilization ◽

Arid Region ◽

Saline Water ◽

Salt Water ◽

Nitrogen Use ◽

Nitrogen Levels ◽

Use Efficiency ◽

Semi Arid Region ◽

Semi Arid

The objectives were to analyze the water and nitrogen use efficiency by forage palm in different irrigation depths with saline water and nitrogen fertilization levels in the Brazilian semi-arid region. The experiment was conducted under field condition during one year of cultivation (360 days). The experimental design was a complete randomized block and 5 x 5 factorial scheme with five irrigation depths (125, 100, 75, and 25% of ET0) and five levels of nitrogen fertilization (0, 150, 300, 450 and 600 kg ha-1 of N) and three replicates. Irrigation and acceptable nitrogen fertilization resulted in a good water and fertilization management. Water and nitrogen use efficiency of forage palm were higher, when water depths and the nitrogen levels supplied to the soil were increased. The 125% ET0 depth showed a higher efficiency of water and nitrogen use in the forage palm during 360 days of study. In conditions of low nitrogen supply, the efficiency of nitrogen use is directly and indirectly associated with the fresh mass yield; while under high supply, the efficiency of the use of nitrogen is more effective. The use of irrigation and nitrogen fertilization in the semi-arid region is recommended to obtain higher productivity of water and nitrogen from the forage palm.

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CRESCIMENTO E PRODUÇÃO DA PRIMEIRA REBROTA DE CULTIVARES DE SORGO SOB DIFERENTES LÂMINAS DE IRRIGAÇÃO

Revista Brasileira de Milho e Sorgo ◽

10.18512/1980-6477/rbms.v16n3p449-459 ◽

2017 ◽

Vol 16 (3) ◽

pp. 449

Author(s):

JOÃO PAULO NUNES COSTA ◽

JOSÉ FRANCISMAR MEDEIROS ◽

RAFAELA MENDES DE ANDRADE NUNES ◽

EDMILSON GOMES CAVALCANTE JÚNIOR ◽

JOSÉ FLAVIANO BARBOSA LIRA

Keyword(s):

Sorghum Bicolor ◽

Arid Region ◽

Block Design ◽

Dry Mass ◽

Climatic Data ◽

Forage Sorghum ◽

Tukey Test ◽

Randomized Complete Block Design ◽

Semi Arid Region ◽

Semi Arid

RESUMO - Avaliou-se comportamento da rebrota de cultivares do sorgo sacarino e forrageiro no semiárido potiguar sob diferentes lâminas de irrigação. O ensaio foi realizado em março de 2015, nas condições de campo, em um argissolo no município de Upanema-RN, região Nordeste do Brasil. O experimento foi conduzido com delineamento experimental em blocos casualizados completos, em esquema de parcelas subdivididas 4 x (5 x 2), com quatro repetições, sendo quatro lâminas de irrigação (50, 75, 100 e 125% da ETc), e cinco cultivares (duas cultivares sacarinas, BRS 506 e BRS 511, e três forrageiras IPA 467-4-2, IPA SF-15 e BRS Ponta Negra) combinadas com duas densidade de plantio nas subparcelas. As variáveis avaliadas foram as produtividades de massa fresca e seca. Verificou-se que a lâmina de irrigação repondo 100% da ETc proporcionou maior rendimento de biomassa e que as cultivares sacarinas apresentaram baixa capacidade de rebrota, sendo as variedades IPA SF 15, IPA 467-4-2 e a BRS Ponta Negra as mais produtivas.Palavras-chave: Sorghum bicolor, semiárido, estresse hídrico. GROWTH AND PRODUCTION OF THE FIRST REGROWTH OF SORGO CULTIVARS UNDER DIFFERENT IRRIGATION BLADES ABSTRACT - Behavior of re-growth of saccharin sorghum and forage sorghum cultivars in the semi-arid region of the State of Rio Grande do Norte (RN), Brazil, under different irrigation blades was evaluated. The experiment was carried out in March 2015 under field conditions in an argisol in the municipality of Upanema-RN, northeast region of Brazil. The experiment was carried out in a complete randomized complete block design with four replications (4 x 5 x 2), four irrigation blades (50, 75, 100 and 125% of ETc estimated from climatic data of Mossoró-RN) and five cultivars (two saccharin cultivars, BRS 506 and BRS 511, and three forage cultivars, IPA 467-4-2, IPA SF-15 and BRS Ponta Negra) combined with two planting densities in the subplots. Fresh and dry mass productivities were evaluated. The results were submitted to analysis of variance (F test) and the means were compared by the Tukey test at the 5% probability level, using the SAEG 8.1 software. It was verified that the irrigation blade replacing 100% of the ETc provided a higher yield of biomass and that the saccharin cultivars presented a low sprout capacity, with the varieties IPA SF 15, IPA 467-4-2 and BRS Ponta Negra being the most productive. Keywords: Sorghum bicolor, semiarid, water stress.

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Effect of Urea, NPK and Compost on Growth and Yield of Soybean (Glycine max L.), in Semi-Arid Region of Sudan

ISRN Agronomy ◽

10.5402/2012/678124 ◽

2012 ◽

Vol 2012 ◽

pp. 1-6 ◽

Cited By ~ 3

Author(s):

Samia Osman Yagoub ◽

Wigdan Mohamed Ali Ahmed ◽

A. A. Mariod

Keyword(s):

Glycine Max ◽

Block Design ◽

Growth And Yield ◽

Straw Yield ◽

Significant Difference ◽

Randomized Complete Block Design ◽

Glycine Max L ◽

Biological Yield ◽

Semi Arid Region ◽

Semi Arid

A field experiment was conducted for two consecutive seasons (2009/2010 and 2010/2011) on the Demonstration Farm of the College of Agricultural Studies, Sudan University of Science and Technology at Shambat, to study the effect of some fertilizers on growth and yield of soybean (Glycine max L. merril). The experiment was laid out in a randomized complete block design (RCBD) with four replicates. The fertilizers treatments consisted of three types of fertilizers: urea (180 kg/ha), NPK (361 kg/ha), compost (%) and the control. The results showed that fertilizers treatments in first season had significant difference on number of pods/plant, economic yield, harvest index. Mean while, highly significant difference on green, biological and straw yield. In second season fertilizers treatments had significant difference on plant height at 30 days, leaf area at 45 and 60 days, green yield, biological yield and straw yield.

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In situ degradability of dry matter and neutral-detergent fibre of thorn scrubland forage consumed by goats in the semi-arid region of north Mexico

Animal Science ◽

10.1017/s1357729800090366 ◽

2004 ◽

Vol 79 (3) ◽

pp. 505-511 ◽

Cited By ~ 5

Author(s):

R. A. S. Juárez ◽

E. R. Montoya ◽

C. G. Nevarez ◽

S. M. A. Cerrillo ◽

F. L. Mould

Keyword(s):

Arid Region ◽

Dry Matter ◽

Nutritive Value ◽

Block Design ◽

Wet Season ◽

Neutral Detergent Fibre ◽

Randomized Block Design ◽

Dry Seasons ◽

Semi Arid Region ◽

Semi Arid

AbstractThree goats provided with oesophageal and ruminal cannulae were used to determine variations in dry matter (DM) and neutral-detergent fibre (NDF) degradability of the forage consumed when grazing thorn scrubland in the semi-arid region of north Mexico, during two consecutive dry and wet periods. Ingesta samples were incubated intraruminally, the data were fitted to the exponential equation P = a + b (l - e-ct) and statistically analysed using a randomized-block design. Organic matter and crude protein (CP) contents were higher (P < 0.05) in the wet seasons. Values of NDF were similar in dry and wet season of both years whereas higher numerical values of acid-detergent fibre (ADF), lignin and cellulose were registered in the dry seasons. DM and NDF degradabilities after 24 and 48 h of ruminal incubation were higher (P < 0.05) in the wet seasons. Higher values (P < 0.05) in DM and NDF bag losses at zero time (A fraction) were registered in the two wet seasons. The insoluble but fermentable DM and NDF (B fractions) were higher (P < 0.05) in the 1999 wet season and variable in the rest of the studied period. Numerically higher values of DM and NDF c fraction were found in wet periods, whereas DM and NDF potential degradabilities were higher (P < 0.05) in the wet season in 1999 and similar across seasons in 2000. Lowest (P < 0.05) contents of CP in grazed forage, DM and NDF degradabilities after 48 h of ruminal incubation, and A, and B, and c fractions were observed in the dry seasons. Thus, these results may be related to both the lower feeding value of forage consumed by the animals and lower performance of livestock during this period. Then, the DM and NDF degradability after 48 h, together with the insoluble but fermentable matter and the c fraction permit the nutritive value of the forage consumed by grazing goats to be accurately described.

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EFICIÊNCIA FOTOQUÍMICA EM CLADÓDIOS DE PALMA FORRAGEIRA ‘GIGANTE’ CULTIVADA SOB DIFERENTES ESPAÇAMENTOS E ADUBAÇÃO MINERAL

Nativa ◽

10.31413/nativa.v9i3.10587 ◽

2021 ◽

Vol 9 (3) ◽

pp. 254-259

Author(s):

Cleiton Fernando Barbosa Brito ◽

Sérgio Luiz Rodrigues Donato ◽

Alessandro De Magalhães Arantes ◽

João Abel Da Silva ◽

Paulo Emílio Rodrigues Donato ◽

...

Keyword(s):

Rainy Season ◽

Physiological Activity ◽

Block Design ◽

Photochemical Efficiency ◽

Cam Plants ◽

Mineral Fertilization ◽

Cactus Pear ◽

Randomized Block Design ◽

Semi Arid Region ◽

Semi Arid

A associação de fatores no sistema solo-água-planta-atmosfera, como adubação, espaçamento entre plantas e disponibilidade hídrica, pode influenciar a atividade fisiológica em palma forrageira nas condições adversas do semiárido. Assim, objetivou-se determinar a eficiência fotoquímica em cladódios de palma forrageira ‘Gigante’ cultivada sob diferentes espaçamentos e adubação mineral em região semiárida, no período seco e chuvoso. O experimento foi conduzido em blocos ao acaso em esquema fatorial 4 x 3 x 7, com três repetições. O primeiro fator foi constituído de quatro adubações (000-000-000; 000-150-000; 200-150-000 e 200-150-100 kg ha-1 de N-P2O5-K2O), o segundo, por três espaçamentos (1,0 x 0,5; 2,0 x 0,25 e 3,0 x 1,0 x 0,25 m) e o terceiro por sete horários de leitura (6; 8; 10; 12; 14; 16 e 18 h). Foram realizadas leituras de fluorescência da clorofila “a” em cladódios de palma forrageira nas épocas seca e chuvosa com auxílio de um fluorômetro de luz modulada. Verificou-se ajustes cúbicos para as variáveis de fluorescência da clorofila “a” ao longo dia com magnitude de respostas diferenciadas nos períodos seco e chuvoso. Os cladódios de palma forrageira ‘Gigante’ sofrem alterações no fotossistema II na época seca nas condições fisiográficas do semiárido baiano e na época de chuvas o rendimento fotossintético em cladódios de palma forrageira é considerado ideal com variações ao longo do dia. Palavras-chave: arranjo de plantas; Opuntia; plantas CAM. Photochemical efficiency in cladodes of ‘Gigante’ cactus pear cultivated under different spacing and mineral fertilization ABSTRACT: The association of factors in the soil-water-plant-atmosphere system, such as fertilization, spacing between plants and water availability, can influence the physiological activity in cactus pear in the adverse conditions of the semiarid. Thus, the objective was to determine the photochemical efficiency in cladodes of ‘Gigante’ cactus pear cultivated under different spacing and mineral fertilization in the semi-arid region, in the dry and rainy season. The experiment was conducted in a randomized block design in a 4 x 3 x 7 factorial scheme with three replicates. The first factor consisted of four fertilizations (000-000-000, 000-150-000, 200-150-000 and 200-150-100 kg ha-1 of N-P2O5-K2O), the second one, by three fertilizations (1.0 x 0.5, 2.0 x 0.25 and 3.0 x 1.0 x 0.25 m) and the third by seven reading times (6 a.m., 8 a.m., 10 a.m., 12 p.m., 2 p.m., 4 p.m. and 6 p.m). Fluorite readings of “a” chlorophyll were carried out in forage palm cladodes in the dry and rainy seasons with the help of a light modulated fluorometer. Cubic adjustments wereobserved for the fluorescence variables of “a” chlorophyll along day with magnitude of differentiated responses in dry and rainy periods. The cladodes of ‘Giant’ cactus pear alterations suffer in photosystem II in the dry season in the physiographic conditions of the Bahia semi-arid and in the rainy season the photosynthetic yield in cladodes of forage palm is considered ideal with variations along the day. Keywords: arrangement of plants; Opuntia; CAM plants.

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