Adubação verde como fonte de nitrogênio para a cultura da berinjela em sistema orgânico

Castro, Cristina Maria de; Alves, Bruno José Rodrigues; Almeida, Dejair Lopes de; Ribeiro, Raul de Lucena Duarte

doi:10.1590/s0100-204x2004000800008

Cited by 44 publications

(36 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the presence of N-biological fixation from subsequent green manure crops is small. The percentage of legume-N absorbed by crops varies from 12.45% to 22.9% of the total N derived from biological fixation (Castro et al, 2004;Silva et al, 2006;Diniz et al, 2007) and reaches about 20% of the total N applied as green manures (Scivittaro et al, 2000).…”

Section: Resultsmentioning

confidence: 99%

Levels of Crotalaria juncea on growth, production, recovery and efficiency of the use of N in broccoli

et al. 2017

View full text Add to dashboard Cite

A lthough there are studies on nutrition and fertilizer recommendations for the commercial cultivation of broccoli (Brassica oleracea var. italica) and works with other types of organic fertilizers such as compost or manure (Oliveira et al., 2003;Yuri et al., 2004; Damato Junior et al., 2005), there are few studies on the effects of green manure on the growth and production of broccoli. The literature also lacks studies relating green manure doses to the production and/or growth of horticultural products.One of the few studies reports the influence of doses of organic compost (OC) on yield and quality of the "Ramoso Santana" broccoli seeds. Four compost rates (0, 30, 60, 90, and 120 t/ha) with 0.72% nitrogen and 40% organic matter were applied. The production of broccoli seeds (number and weight) per plant increased linearly with increased doses of OC (Magro et al., 2010 ABSTRACTThe recommendation for green manure (GM) in cropping systems still has little scientific support, with few studies addressing the effects of nutrient amounts from green manure on the growth and production of the crop. Our aim was to evaluate the effect of levels of Crotalaria juncea green manure on the growth, production, and efficiency of the use as well as the apparent recovery of N in broccoli crop. Seven treatments were established; the main with four doses of green manure: 0, 3, 6, and 9 t/ha on a dry matter (DM) basis, applied with 12 t/ha compost. The control treatments consisted of mineral fertilization, the treatment with 25 t/ha compost, and another as the absolute control. Comparatively, production under the absolute control was less than all other treatments with green manure doses and application of 12 t/ha compost. The production of plants grown with 25 t/ha compost was superior to that of plants grown with dose of 0 t/ha and similar to that obtained with 3 t/ha; however, it was inferior to those produced with doses of 6 and 9 t/ha green manure. The highest percentage of N recovered (REC N) by the broccoli plants was observed close to a dose of 3 t/ha green manure, with a maximum point of 37.90% (2.8 t/ha), while in larger doses of 6 and 9 t/ha showed estimated values of 31.91% and 20.49%, respectively. The physiological efficiency of the use of N (EFUN) showed an effect similar to apparent recovery of N (REC N), with higher EFUN from lowest to highest dose of green manure, that is, 3, 6, and 9 t/ha, with estimated values of 70.41, 62.45, and 26.02 g DM per g of N uptake, respectively. The mass amounts of applied C. juncea influenced positively on the growth and productivity of broccoli. The lower mass of applied green manure increases the physiological efficiency of the use of N with more apparent recovery of the applied N.Keywords: Brassica oleracea var. italica, green manure, nitrogen. RESUMO Doses de Crotalaria juncea no crescimento, produção, recuperação e eficiência de uso de N em brócolisA recomendação da adubação verde nos sistemas de cultivos ainda apresenta pouco suporte científico e poucos estudos abordam os ef...

show abstract

Section: Resultsmentioning

confidence: 99%

Levels of Crotalaria juncea on growth, production, recovery and efficiency of the use of N in broccoli

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Os valores alcançados por essa espécie foram inferiores aos obtidos por Amabile et al (2000) sob condições edafoclimáticas semelhantes, porém superiores aos encontrados por Oliveira & Gosch (2007), também em região de Cerrado, e por outros autores em variadas regiões, como Castro et al (2004), Cazetta et al (2005) e Silva et al (2006. A matéria seca acumulada é significativa e expressa o potencial da Crotalaria juncea para uso como cobertura em solos de Cerrado na região, pois esta pode proporcionar eficiente cobertura do solo pelos seus resíduos, permanecendo estes por maior tempo na superfície em relação às outras leguminosas, devido à alta relação C/N (29) do seu material (Carvalho & Amabile, 2006).…”

Section: Resultsunclassified

Aspectos agronômicos de leguminosas para adubação verde no Cerrado do Alto Vale do Jequitinhonha

Teodoro

Oliveira

Silva

et al. 2011

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

RESUMOO uso intensivo e inadequado dos solos acelera sua degradação, sendo necessária a intervenção por meio de práticas conservacionistas para restaurar a capacidade produtiva dos mesmos. O objetivo deste estudo foi avaliar o comportamento e desenvolvimento de diferentes leguminosas utilizadas como adubos verdes em solos de Cerrado, Alto Vale do Jequitinhonha, em Turmalina, MG. O delineamento experimental adotado foi em blocos ao acaso, com sete tratamentos e quatro repetições, sendo os tratamentos constituídos pelas leguminosas: mucuna-cinza (Mucuna nivea), mucuna-preta (Mucuna aterrima), lablabe (Dolichos lablab), feijão-de-porco (Canavalia ensiformis), Crotalaria juncea, Crotalaria spectabilis e guandu-anão (Cajanus cajan). O ciclo precoce de C . juncea, C. spectabilis e feijão-de-porco favorece a inserção destes nos sistemas de cultivo. Aos 40 dias, o feijão-de-porco e mucuna-cinza já cobriam o solo, com 67 e 63 %; já o guandu-anão e C. juncea apresentaram os maiores desenvolvimentos, nesse período. Os teores de N, P e K tendem a diminuir nas avaliações realizadas nas diferentes fases vegetativas, o que contribui para melhor escolha da época de manejo das leguminosas. Crotalaria juncea, mucuna-cinza, feijão-de-porco e mucuna-preta foram as leguminosas que se destacaram na produção de matéria seca, o que torna essas espécies promissoras para adubação verde na região. As leguminosas, em sua maioria, apresentam potencial para reciclagem dos macronutrientes e aporte de N aos sistemas de produção.Termos de indexação: adubos verdes, ciclagem de nutrientes, manejo do solo, plantas de cobertura.

show abstract

“…Thus, the use of alternative raw materials, such as green manure, can allow a substitution of the quantities of cattle manure to be applied, and contribute to restoring the N reserves in the soil (Castro et al, 2004). It is known, therefore, that the green manures increase the organic matter content in the soil, improve the availability of nutrients, and reduce the contents of aluminum and mobilization of nutrients (Kumar & Shivay, 2007).…”

Section: Introductionmentioning

confidence: 99%

Productive performance of cowpea-radish intercropping under different amounts of rooster tree biomass incorporated into the soil

Pereira

Neto

Pontes

et al. 2016

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

Intercropping systems of cowpea with radish are beginning to be deployed in the semiarid region of Rio Grande do Norte state. The great challenge is to know whether or not there is productive efficiency in these systems when fertilized with organic matter produced by spontaneous species from the ‘Caatinga’ biome. Thus, the aim of this study was to evaluate the productive performance of cowpea-radish intercropping systems under different amounts of rooster tree biomass incorporated into the soil. The study was conducted at the experimental farm Rafael Fernandes, rural zone of Mossoró, RN, in the period from June to September 2013, in an experimental design of randomized blocks with four treatments and five replicates. The treatments consisted of the following amounts of rooster tree biomass incorporated into the soil (10, 25, 40 and 55 t ha-1 on a dry weight basis). The best productive performance of the cowpea-radish intercrop was obtained when the rooster tree biomass amount of 50.01 t ha-1 was incorporated to the soil. The use of rooster tree biomass as green manure is agronomically viable in intercropped systems of cowpea-radish.

show abstract

Adubação verde como fonte de nitrogênio para a cultura da berinjela em sistema orgânico

Cited by 44 publications

References 4 publications

Levels of Crotalaria juncea on growth, production, recovery and efficiency of the use of N in broccoli

Levels of Crotalaria juncea on growth, production, recovery and efficiency of the use of N in broccoli

Aspectos agronômicos de leguminosas para adubação verde no Cerrado do Alto Vale do Jequitinhonha

Productive performance of cowpea-radish intercropping under different amounts of rooster tree biomass incorporated into the soil

Contact Info

Product

Resources

About