Effect of cover crops and nitrogen rates on sprinkler irrigated wheat in low altitude cerrado

Michelle Traete Sabundjian; Orivaldo Arf; Flávio Hiroshi Kaneko; Flávia Constantino Meirelles; Marcelo Valentini Arf; Vagner do Nascimento

doi:10.1590/0034-737x201663030017

Effect of cover crops and nitrogen rates on sprinkler irrigated wheat in low altitude cerrado

Revista CERES ◽

10.1590/0034-737x201663030017 ◽

2016 ◽

Vol 63 (3) ◽

pp. 394-402

Author(s):

Michelle Traete Sabundjian ◽

Orivaldo Arf ◽

Flávio Hiroshi Kaneko ◽

Flávia Constantino Meirelles ◽

Marcelo Valentini Arf ◽

...

Keyword(s):

Cover Crops ◽

Azospirillum Brasilense ◽

Low Altitude ◽

Irrigated Wheat ◽

Nitrogen Rates

RESUMO A produção de trigo no cerrado brasileiro enfrenta grandes desafios, principalmente por não ser a região tradicionalmente tritícola e pela ocorrência de inverno quente e seco. Assim, o objetivo deste trabalho foi avaliar o efeito residual das culturas antecessoras, milho e Urochloa ruziziensis (R. Germ & Evrard), em cultivo exclusivo e em consórcio entre ambas, na presença e ausência da inoculação de sementes com Azospirillum brasilense e adubação nitrogenada (N) em cobertura, no desenvolvimento e na produtividade do trigo. O experimento foi desenvolvido em Selvíria, MS, em 2011/12. O delineamento experimental foi o de blocos ao acaso, disposto em esquema fatorial 8x4, com quatro repetições, cujos tratamentos foram constituídos pela combinação de restos culturais (associações de milho, Urochloa ruziziensis e Azospirillum brasilense) e doses de N (0, 30, 60 e 90 kg ha-1) em cobertura, no trigo. Realizaram-se as seguintes avaliações: cobertura vegetal residual (quantidade), características agronômicas, componentes de produção e produtividade da cultura do trigo. As culturas antecessoras apresentaram efeitos positivos na produtividade do trigo cultivado em sucessão, sendo o consórcio de milho e Urochloa ruziziensis, com ou sem inoculação excelente opção de manejo; o incremento da dose de N, em cobertura, até 90 kg ha- 1 aumenta a produtividade de grãos de trigo irrigado, dependendo da cultura antecessora.

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Nitrogen fertilization of vegetables cultivated under no-tillage after cover crops

Horticultura Brasileira ◽

10.1590/s0102-053620170116 ◽

2017 ◽

Vol 35 (1) ◽

pp. 103-110 ◽

Cited By ~ 2

Author(s):

Roberto BF Branco ◽

Sally F Blat ◽

Tais GS Gimenes ◽

Rodrigo HD Nowaki ◽

Humberto S Araújo ◽

...

Keyword(s):

Plant Growth ◽

Cover Crops ◽

Nitrogen Fertilization ◽

Nitrate Concentration ◽

Dry Mass ◽

Growth And Yield ◽

No Tillage ◽

Biological Fixation ◽

Sunn Hemp ◽

Nitrogen Rates

ABSTRACT The production of horticultural crops in no-tillage and in rotation with cover crops reduces the dependency in nitrogen fertilizer, due to increased soil organic matter and by biological fixation performed by legumes. Thus, the aim of this work was to study rates of nitrogen fertilization and cover crops in the agronomic performance of tomato and broccoli grown under no-tillage. The experiment was conducted in a split plot design with four replications. Treatments consisted of cover crops, sunn hemp and millet, and four rates of nitrogen fertilization (0, 50, 100 and 200 kg/ha of nitrogen), for both the tomato and broccoli crops. All soil management was performed in no-tillage. For tomato crops we evaluated the plant growth, the nitrate concentration of sprouts and fruits and yield of commercial and non commercial fruits. For broccoli we evaluated plant growth and yield. There was an interaction effect between cover crop and nitrogen rates to tomato growth measured at 100 days after transplanting, for plant height, number of fruit bunches, dry mass of leaves and diameter of the stalk. The tomato commercial fruit number and yield showed maximum values with 137 and 134 kg/ha of N respectively, on the sunn hemp straw. The nitrate concentration of the tomato sprouts was linearly increasing with the increase of nitrogen rates, when grown on the millet straw. For broccoli production, the maximum fresh mass of commercial inflorescence was with 96 kg/ha of N, when grown on the millet straw.

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Response of dual-purpose wheat to nitrogen fertilization and seed inoculation with Azospirillum brasilense

Ciência e Agrotecnologia ◽

10.1590/1413-7054201943027718 ◽

2019 ◽

Vol 43 ◽

Author(s):

Mauricio Pase Quatrin ◽

Clair Jorge Olivo ◽

Gabriela Descovi Simonetti ◽

Vinicius Felipe Bratz ◽

Guilherme Librelotto de Godoy ◽

...

Keyword(s):

Grain Yield ◽

Azospirillum Brasilense ◽

Block Design ◽

Forage Yield ◽

Nitrogen Fertilizers ◽

Leaf Biomass ◽

Plant Growth Promoting Bacteria ◽

Dual Purpose ◽

Straw Yield ◽

Nitrogen Rates

ABSTRACT The use of inoculants containing plant growth-promoting bacteria is an alternative to increase the efficiency of nitrogen fertilizers. Studies evaluating the effects of inoculation on forage yield, straw yield, and grain yield in dual-purpose wheat cultivars are scarce. This study aimed to evaluate the forage yield and grain yield in dual-purpose wheat inoculated with Azospirillum brasilense and fertilized with increasing nitrogen rates during two agricultural years (2016-2017) under cutting management. The trial was carried out in a completely randomized block design with four replicates, using a 2 x 4 factorial arrangement. The factors were the inoculation (control or A. brasilense) and nitrogen rates (0, 50, 100 and 150 kg ha-1 of N). Forage, grain and straw yield, and number of tillers were evaluated. Forage yield differed between treatments with inoculation and without inoculation, 3952 and 3350 kg DM ha-1, respectively. There was no effect of inoculation on grain yield. The forage and leaf biomass yield, the number of tillers and straw yield increased with inoculation.

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Wheat yield in the Cerrado as affected by nitrogen fertilization and inoculation with Azospirillum brasilense

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2017000900012 ◽

2017 ◽

Vol 52 (9) ◽

pp. 794-805 ◽

Cited By ~ 17

Author(s):

Fernando Shintate Galindo ◽

Marcelo Carvalho Minhoto Teixeira Filho ◽

Salatiér Buzetti ◽

José Mateus Kondo Santini ◽

Cleiton José Alves ◽

...

Keyword(s):

Grain Yield ◽

Azospirillum Brasilense ◽

Wheat Yield ◽

Urease Inhibitor ◽

N Accumulation ◽

Leaf Chlorophyll ◽

Spike Number ◽

Tillage System ◽

Irrigated Wheat ◽

N Rates

Abstract: The objective of this work was to evaluate the effect of inoculation with Azospirillum brasilense, associated with N rates and sources, in soil of the Cerrado (Brazilian savanna), on the grain yield of irrigated wheat (Triticum aestivum). The experiment was carried out under a no-tillage system in a Typic Haplustox. The experimental design was randomized complete blocks with four replicates, in a 2x5x2 factorial arrangement: two N sources (urea and urea with NBPT urease inhibitor); five N rates applied as topdressing (0, 50, 100, 150, and 200 kg ha-1); and with or without seed inoculation with A.brasilense. The increase in the N rates positively affected spike length, number of spikelets and of grains per spike, number of spikes per meter, N accumulation in the straw, leaf chlorophyll content, and grain yield of irrigated wheat, regardless of the use of NBPT urease inhibitor with conventional urea. Singly, inoculation with A.brasilense does not affect production components and grain yield, despite the increase in N content in wheat straw. The inoculation with A.brasilense, associated with the application of 140 kg ha-1 N, provides the highest grain yield of irrigated wheat cropped after corn in low-altitude Cerrado.

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Cover Crops, Fertilizer Nitrogen Rates, and Economic Return of Grain Sorghum

Agronomy Journal ◽

10.2134/agronj15.0135 ◽

2016 ◽

Vol 108 (1) ◽

pp. 1-16 ◽

Cited By ~ 24

Author(s):

George Y. Mahama ◽

P. V. Vara Prasad ◽

Kraig L. Roozeboom ◽

Jesse B. Nippert ◽

Charles W. Rice

Keyword(s):

Cover Crops ◽

Grain Sorghum ◽

Economic Return ◽

Fertilizer Nitrogen ◽

Nitrogen Rates

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Response of Maize to Cover Crops, Fertilizer Nitrogen Rates, and Economic Return

Agronomy Journal ◽

10.2134/agronj15.0136 ◽

2016 ◽

Vol 108 (1) ◽

pp. 17-31 ◽

Cited By ~ 10

Author(s):

George Y. Mahama ◽

P. V. Vara Prasad ◽

Kraig L. Roozeboom ◽

Jesse B. Nippert ◽

Charles W. Rice

Keyword(s):

Cover Crops ◽

Economic Return ◽

Fertilizer Nitrogen ◽

Nitrogen Rates

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Maize productivity in succession to cover crops, nitrogen fertilization and inoculation with Azospirillum brasilense

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n12p966-971 ◽

2019 ◽

Vol 23 (12) ◽

pp. 966-971

Author(s):

Antônio C. dos Santos Júnior ◽

Marco A. C. de Carvalho ◽

Oscar M. Yamashita ◽

Tauan R. Tavanti ◽

Renan F. R. Tavanti

Keyword(s):

Cover Crops ◽

Nitrogen Fertilization ◽

Azospirillum Brasilense ◽

Block Design ◽

Nitrogen Concentration ◽

Pigeon Pea ◽

N Fertilization ◽

Mineral N ◽

Maize Production ◽

Maize Productivity

ABSTRACT The use of microorganisms in agriculture such as Azospirillum brasilense and the cultivation of cover crops in the off season, together with nitrogen fertilization, may be interesting alternatives to increase crop yield. The objective of this study was to evaluate the growth, production and nitrogen concentration of maize grown in succession to cover crops and their interactions with A. brasilense inoculation and topdressing mineral N fertilization. The experiment was conducted on Oxisol, in randomized block design in split-split-plot scheme with four repetitions. The plots consisted of four cover crops: jackbean (Canavalia ensiformis), dwarf pigeon pea (Cajanus cajan), crotalaria (Crotalaria spectabilis) and spontaneous vegetation. In the subplots, with or without inoculation of A. brasilense in maize seeds, and in the sub-subplots: with or without topdressing N fertilization. It was verified that jackbean can generate increments of up to 8.3% in grains per ear, 6.9% in length of ear and 15.2% in mass of one hundred grains. Consequently, the grain yield was higher in this treatment (18%). The inoculation with A. brasilense and topdressing N fertilization did not generate significant increments in maize production components, as observed for cover crops.

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Initial growth in maize in compliance of Azospirillum brasilense inoculation and nitrogen rates

Bioscience Journal ◽

10.14393/bj-v33n5a2017-36753 ◽

2017 ◽

pp. 1242-1248 ◽

Cited By ~ 1

Author(s):

Elisa Pereira de Oliveira ◽

Matheus Gustavo da Silva ◽

Paulo Eduardo Teodoro

Keyword(s):

Azospirillum Brasilense ◽

Initial Growth ◽

Nitrogen Rates

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(22) Effect of Biculture Legume-Cereal Cover Crops on Kernel Weight and Yields of Sweet Corn Grown with or without Synthetic Nitrogen

HortScience ◽

10.21273/hortsci.41.4.1074b ◽

2006 ◽

Vol 41 (4) ◽

pp. 1074B-1074

Author(s):

Wayne F. Whitehead ◽

Bharat P. Singh

Keyword(s):

Cover Crops ◽

Sweet Corn ◽

Block Design ◽

Total Yield ◽

Kernel Weight ◽

Hairy Vetch ◽

Fresh Weight ◽

Fertility Treatments ◽

Nitrogen Rates ◽

Ear Number

The goal of this study was to compare the effect of leguminous and non-leguminous cover crops alone or in mixture with fertilizer nitrogen rates on kernel weight, ear number, and yield of Bt sweet corn. The following fall-spring fertility treatments were applied using randomized complete-block design with three replications: 1) fall-0 N, fallow; spring-0 N, 2) fall-0 N, abruzzi rye; spring-0 N, 3) fall-0 N, hairy vetch; spring-0 N, 4) fall-0 N, abruzzi rye+hairy vetch; spring-0 N, 5) fall-0 N, fallow; spring-101 kg N/ha, 6) fall-0 N, abruzzi rye; spring-101 kg N/ha, 7) fall-0 N, hairy vetch; spring-101 kg N/ha, 8) fall-0 N, abruzzi rye+hairy vetch; spring-101 kg N/ha, 9) fall-0 N, fallow; spring-202 kg N/ha, 10) fall-0 N, abruzzi rye; spring-202 kg N/ha, 11) fall-0 N, hairy vetch; spring-202 kg N/ha, and 12) fall-0 N, abruzzi rye+hairy vetch; spring-202 kg N/ha. In Spring of 2005, `Attribute BSS0977' bi-color (BC) supersweet (sh2) corn seeds were field planted. Total unhusked ear yield and ear number were harvested 74 days after planting, while kernel weight was measured from three randomly chosen ears. Maximum kernel fresh weight (111.6 g/ear), ear number (101,773/ha) and total yield (17.3 Mg/ha) were produced by hairy vetch; spring-101 kg N/ha. Minimum kernel fresh weight (23.0 g/ear) and ear number (51,485/ha) were produced by fallow; spring-0 N, while minimum total yield (2.2 Mg/ha) was produced by abruzzi rye; spring-0 N. Results indicate that hairy vetch supplemented with N at 101 kg/ha is most effective in supporting kernel fresh weight, ear number and yield of this BCsh2 corn variety.

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