ADUBAÇAO ANTECIPADA COM FERTILIZANTES ORGÂNICO E MINERAL ASSOCIADO À CROTALARIAS NA CULTURA DO MILHO

2017 ◽  
Vol 15 (3) ◽  
pp. 499
Author(s):  
PAULO CÉSAR TIMOSSI ◽  
HILTON ROSA DA SILVA JUNIOR ◽  
SUZETE FERNANDES LIMA ◽  
RONALDO CASTRO ◽  
DIEIMISSON PAULO ALMEIDA

RESUMO- A adubação de sistema aliada à adubação verde pode aumentar a disponibilidade de nitrogênio no solo.Objetivou-se na pesquisa investigar se a disponibilidade antecipada de fertilizantes orgânico e mineral sobre o cultivode Crotalaria spectabilis e Crotalaria juncea influência nas características de produção da cultura do milho. Odelineamento experimental adotado foi o inteiramente casualizado, disposto em esquema fatorial 2 x 4, no qual o fatorA foi formado por duas espécies de adubos verdes (Crotalaria spectabilis e Crotalaria juncea) e o fator B foi formadopor três formas de fertilização (PK, NPK e orgânica) e pela ausência de fertilização, com oito repetições. Foramrealizadas avaliações das características agronômicas e produtivas da cultura do milho. O número de fileiras e númerosde grãos por fileira não diferiu entre as formas de fertilização. A maior altura de plantas de milho, altura de inserçãode espiga e produtividade de grãos foi obtida na área cultivada anteriormente com C. spectabilis. A fertilização comNPK e orgânica, com cama-de-aves, resultou em maior produtividade, porém com 800 kg ha-1 de NPK, valor superiorao recomendado. Conclui-se que a antecipação de fertilização do solo, associado ao cultivo de adubos verdes é viávelpara o cultivo da cultura do milho, a C. spectabilis proporciona maior produtividade de grãos de milho em sucessãoe a adubação orgânica, com cama-de-aves, é tão eficiente quanto à adubação mineral com NPK quando antecipada.Palavras-chave: Crotalaria spectabilis, Crotalaria juncea, cama-de-aves, adubação verde, adubação de sistema.PRE-FERTILIZATION WITH ORGANIC AND MINERAL FERTILIZERS ASSOCIATED WITH CROTALARIES IN MAIZEABSTRACT- The fertilization of system combined with green manure can enhance the availability of soil nitrogen.This study aimed to research whether the anticipated availability of organic and mineral fertilizers in the cultivationof Crotalaria spectabilis and Crotalaria juncea affects the characteristics of production of corn crop. The completelyrandomized design (CRD) was used, with eight replications, in factorial arrangement 2 x 4, in which the factor A wasformed by two species of green manure (Crotalaria spectabilis and Crotalaria juncea) and the factor B comprisedthree forms of fertilization (PK, NPK and organic) and the absence of fertilization. Assessments of agronomic andyield characteristics of corn crop were conducted. As conclusion,the anticipation of soil fertility, associated with greenmanure cultivation is viable for cultivation of corn crop, the C. spectabilis provides increased productivity of the corncrop, and the organic fertilization with bed of birds is as efficient as the mineral fertilization with NPK.Keywords: Crotalaria spectabilis, Crotalaria juncea, bed-of-birds, green manure, system fertilization.

2016 ◽  
Vol 15 (3) ◽  
pp. 499
Author(s):  
PAULO CÉSAR TIMOSSI ◽  
HILTON ROSA DA SILVA JUNIOR ◽  
SUZETE FERNANDES LIMA ◽  
RONALDO CASTRO ◽  
DIEIMISSON PAULO ALMEIDA

RESUMO- A adubação de sistema aliada à adubação verde pode aumentar a disponibilidade de nitrogênio no solo. Objetivou-se na pesquisa investigar se a disponibilidade antecipada de fertilizantes orgânico e mineral sobre o cultivo de Crotalaria spectabilis e Crotalaria juncea influência nas características de produção da cultura do milho. O delineamento experimental adotado foi o inteiramente casualizado, disposto em esquema fatorial 2 x 4, no qual o fator A foi formado por duas espécies de adubos verdes (Crotalaria spectabilis e Crotalaria juncea) e o fator B foi formado por três formas de fertilização (PK, NPK e orgânica) e pela ausência de fertilização, com oito repetições. Foram realizadas avaliações das características agronômicas e produtivas da cultura do milho. O número de fileiras e números de grãos por fileira não diferiu entre as formas de fertilização. A maior altura de plantas de milho, altura de inserção de espiga e produtividade de grãos foi obtida na área cultivada anteriormente com C. spectabilis. A fertilização com NPK e orgânica, com cama-de-aves, resultou em maior produtividade, porém com 800 kg ha-1 de NPK, valor superior ao recomendado. Conclui-se que a antecipação de fertilização do solo, associado ao cultivo de adubos verdes é viável para o cultivo da cultura do milho, a C. spectabilis proporciona maior produtividade de grãos de milho em sucessão e a adubação orgânica, com cama-de-aves, é tão eficiente quanto à adubação mineral com NPK quando antecipada.Palavras-chave: Crotalaria spectabilis, Crotalaria juncea, cama-de-aves, adubação verde, adubação de sistema.PRE-FERTILIZATION WITH ORGANIC AND MINERAL FERTILIZERS ASSOCIATED WITH CROTALARIES IN MAIZEABSTRACT- The fertilization of system combined with green manure can enhance the availability of soil nitrogen. This study aimed to research whether the anticipated availability of organic and mineral fertilizers in the cultivation of Crotalaria spectabilis and Crotalaria juncea affects the characteristics of production of corn crop. The completely randomized design (CRD) was used, with eight replications, in factorial arrangement 2 x 4, in which the factor A was formed by two species of green manure (Crotalaria spectabilis and Crotalaria juncea) and the factor B comprised three forms of fertilization (PK, NPK and organic) and the absence of fertilization. Assessments of agronomic and yield characteristics of corn crop were conducted. As conclusion,the anticipation of soil fertility, associated with green manure cultivation is viable for cultivation of corn crop, the C. spectabilis provides increased productivity of the corn crop, and the organic fertilization with bed of birds is as efficient as the mineral fertilization with NPK.Keywords: Crotalaria spectabilis, Crotalaria juncea, bed-of-birds, green manure, system fertilization.


2013 ◽  
Vol 41 (1) ◽  
pp. 195
Author(s):  
Costel SAMUIL ◽  
Vasile VINTU ◽  
Culita SIRBU ◽  
Mihai STAVARACHE

This investigation examines the influence of fertilization with organic and mineral fertilizers on the biodiversity of grasslands containing Festuca rubra, Agrostis capillaris and Nardus stricta. Permanent meadows were studied in terms of production of food, and of biodiversity. The current strategy of using organic fertilizers has raised concerns about resource conservation and environmental protection. The increase in the number of species is due to the fertilizers that have been applied leading to changes in the soil fertility status. This change in soil fertility has allowed other mesotrophic and eutrophic species to become established in fertilized meadows. In Romania, meadows belonging to this category occupy an area of approximately 1,600,000 hectares and have relatively low production rates. The experiment was located at Pojorata, Suceava County (Romania), in two different natural grasslands that had different floristic compositions. Manure improved the growth of a number of species, especially in the "plants from other botanical families" category, because of the pool of seeds that it contains. Using a management system based on fertilization with small amounts of organic and mineral fertilizers can help preserve the biodiversity of these meadows. The results of this study, in an area considered representative for large parts of the mountainous areas of Romania, indicated that fertilization treatments were able to maintain a high species diversity.


Author(s):  
Hasanova Aynur Oruj, Et. al.

The experience of developed countries in the field of agriculture and research results show that high efficiency from mineral fertilizers can be obtained on fertile soils. That is, the soil should contain a large amount of organic substances, microelements, beneficial microorganisms, various enzymes that activate microbiological processes, normalize and optimize the nutritional, thermal and water-physical properties of the soil. This can be achieved by regularly applying crop residues and organic fertilizers to the soil. Siderata - green fertilizers - are of great importance for increasing soil fertility.


2020 ◽  
Vol 4 (2) ◽  
pp. 353-362
Author(s):  
O. L. Romanenko ◽  
I. S. Kushch ◽  
A. V. Agafonova ◽  
Yu. O. Tenyukh ◽  
M. M. Solodushko ◽  
...  

During 2000–2018, the results of the application of organic and mineral fertilizers in dynamics and their effect on the content of humus and nutrients in the soils of the Zaporizhzhya region were reviewed. To control the state of soil fertility use the calculation of the balance of humus and nutrients. This makes it possible to determine the extent to which the application of nutrients with fertilizers covers their removal by crop yields. Negative tendencies have been identified, which have led to the deterioration of soil fertility in the Zaporizhia region. Measures are proposed to achieve a deficit-free balance of humus and nutrients. On average, in 2000–2018, the level of mineral fertilizer application in the Zaporizhia region remained low – 38 kg/ha (nitrogen – 28 kg, phosphorus – 7, potassium – 3 kg), and manure – only 0.2 t/ha. According to the results of agrochemical certification of agricultural lands, the dynamics of changes in the content of humus, easily hydrolyzed nitrogen, mobile compounds of phosphorus and potassium over the past 18 years has been determined. The average weighted content of humus in the soils in the VIII round was 3.44 %, IX – 3.52, X – 3.40, XI (2016–2018) – 3.57 %, which indicates the stability of this indicator. The weighted average nitrogen content, which is easily hydrolyzed during all rounds, has close values (83.6–90.3 mg/kg) and corresponds to a low level of its supply. The content of mobile phosphorus compounds during the VIII – IX rounds was quite stable (97.1–101.6 mg/kg), and in the X–XI rounds there was even an increase to 123.3–123.4 mg/kg. The phosphorus regime of soils is stable and corresponds to the increased level of security, except for the ninth round (average). Potassium regime of the soil for eighteen years also remains stable and refers to a high level of security (159.6–176.8 mg/kg). The balance of humus and nutrients in the soils of the region remains negative. There is a tendency of positive changes if we compare the results for the first (2003–2014) and second (2003–2018) periods. Thus, to achieve a positive balance of humus it is necessary to apply 2 t/ha of straw (+400 kg/ha), 20 kg/ha of nitrogen fertilizers and 6.4 t/ha of manure, and in 2003–2018 – respectively 2 t / ha straw (+400 kg/ha), 20 kg/ha of nitrogen, 5.8 t/ha of manure. Key words: soil, balance, dynamics, humus, fertility, organic and mineral fertilizers.


2016 ◽  
Vol 20 (2) ◽  
pp. 63-70
Author(s):  
Tomasz K. Dobek ◽  
Paweł Kołosowski

AbstractIntensive breeding is related to formation of considerable amount of manure which may be used as a natural fertilizer. Manure fertilization may cause reduction of the amount of applied mineral fertilizers and thus reduction of production costs. It may particularly relate to the species with great fertilization requirements such as winter rapeseed. The objective of the research was to compare economic efficiency of rapeseed production in two farms which use different fertilization variants. In one, only mineral fertilizers were used and in the second one – mineral fertilization was supplemented with manure organic fertilization. The use of manure caused reduction of expenditures on materials and raw materials used in production, in particular of fertilizers. At comparable yields obtained by two farms, technology based on manure fertilization proved to be more efficient.


2016 ◽  
Vol 46 (6) ◽  
pp. 970-975 ◽  
Author(s):  
Natanael Santiago Pereira ◽  
Ismail Soares ◽  
Fábio Rodrigues de Miranda

ABSTRACT: The use of leguminous green manure can be an alternative for the region agricultural systems due to its ability to incorporate significant amounts of nutrients into the soil through decomposition and nutrient release from biomass. This study aimed to evaluate the decomposition rates and nutrient release of six leguminous green manure species ( Crotalaria juncea , Canavalia ensiformes , Cajanus cajan , Crotalaria spectabilis , Dolichos lablab and Mucuna deeringiana ) in an area of the Jaguaribe-Apodi agricultural region, Brazil. Experiment was carried out under field conditions in a randomized block design with five replications. Decomposition and nutrient release from leguminous biomass were monitored by sampling at 30, 60, 90, 120, 150 and 180 days after installing litter bags. In general, Crotalaria spectabilis and Canavalia ensiformes showed higher decomposition and nutrient release rates and they are the most promising for the region in the conditions of this study. However, for greater persistence of residues in the soil, Crotalaria juncea is more recommended.


2013 ◽  
Vol 11 ◽  
pp. 121
Author(s):  
Marília Dutra Massad ◽  
Tiago Reis Dutra ◽  
Jéssica Costa de Oliveira ◽  
Mateus Felipe Quintino Sarmento

Devido à grande degradação física e química dos solos da região semiárida mineira é cada vez mais necessáriaa adoção de práticas conservacionistas. A técnica de adubação verde, realizada por meio do uso de espéciesleguminosas, apresenta-se como uma prática alternativa visando restaurar a capacidade produtiva dos solosda região. Diante do exposto, o objetivo do presente estudo foi conhecer o comportamento de algumas espéciesleguminosas anuais, nas condições edafoclimáticas de Salinas (MG), gerando tecnologias que possibilitemampliar o uso da adubação verde na região do semiárido mineiro. O trabalho foi realizado na FazendaFurados, em Salinas (MG), no período de março a junho de 2011, sendo conduzido sob delineamento de blocosao acaso, com quatro repetições, e tendo os tratamentos correspondentes às espécies estudadas: crotaláriajuncea (Crotalaria juncea), crotalária espectabilis (Crotalaria spectabilis), feijão-de-porco (Canavalia ensiformis), mucuna-preta (Mucuna aterrina), mucuna-cinza (Mucuna cinereum) e pousio (vegetação espontânea).Os parâmetros avaliados foram a taxa de cobertura do solo, retenção de umidade e conservação da temperaturado solo, capacidade de supressão sobre a vegetação espontânea, deposição de fitomassa senescente e aprodução de fitomassa seca total da parte aérea. As espécies feijão-de-porco, mucuna-cinza e mucuna-pretaapresentaram resultados de grande importância para o manejo conservacionista do solo através das maioresproduções de fitomassa seca, capacidade de recobrimento e retenção de umidade, redução da temperatura,além de proporcionarem maior inibição do desenvolvimento de plantas espontâneas, e dessa maneira sãoindicadas para a realização da prática de adubação verde nas condições edafoclimáticas de estudo.


2008 ◽  
Vol 54 (No. 5) ◽  
pp. 190-196 ◽  
Author(s):  
M. Babulicová

The effect of mineral and organic fertilization on grain yield and quality of winter wheat in crop rotations and in continuous cropping was investigated. The study was conducted in Borovce (near Piešťany) on Luvi-Haplic Chernozem in the years 2002–2004. Mineral and organic fertilization of winter wheat growing in monoculture was more effective than mineral fertilization in crop rotations. In the case of winter wheat growing in monoculture, statistically higher grain yield (5.10 t/ha) was obtained in the variant with straw and green manure incorporation compared to the control variant (4.73 t/ha) and the variant with straw incorporation (4.75 t/ha). In the Solara variety, statistically higher number of plants before harvest was recorded in the variant with straw and green manure incorporation (194 plants per 1 m<sup>2</sup>) than in the variant with straw incorporation only (149 plants per 1 m<sup>2</sup>). As for the winter wheat grain in the sequence 2, based on the wet gluten content (30.3%) the Solara variety was classified in the elite class E in the variant with straw and green manure incorporation, and in the improving class A in the control variant.


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