Initial growth of physic nut as a function of sources and doses of organic fertilizers

Schulz, Deisinara Giane; Fey, Rubens; Ruppenthal, Viviane; Malavasì, Marlene de Matos; Malavasi, Ubirajara Contro

doi:10.1590/s1413-70542012000600003

Cited by 4 publications

(7 citation statements)

References 5 publications

(5 reference statements)

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“…In a general manner, these results are similar to the ones obtained by HIGASHIKAWA et al (2010) and SCHULZ et al (2012). In our study, CM showed higher contents of total C and N, K and C/N ratio when compared with CMV and CMS.…”

Section: Resultssupporting

confidence: 92%

“…At 112 days, these forms of N represented as far as 98% (116mg N kg -1 of soil), 99% (134mg N kg -1 of soil) and 99% (118mg N kg -1 of soil) of the total mineral N (N-NH 4 + e N-NO 2 -+ N-NO 3 -) on treatments CMV, CMS and CM, respectively. According to SCHULZ et al (2012), the higher mineralization of N-NO 2 -and N-NO 3 -in the beginning of the development cycle of a crop, when the nutrient absorption capability of the plant is low, possibly leading to losses of this element in the soil.…”

Section: Resultsmentioning

confidence: 99%

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Mineralization and efficiency index of nitrogen in cattle manure fertilizers on the soil

et al. 2016

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This research aimed to evaluate the mineralization of nitrogen (N) and to define the efficiency index (EI) of N after the addition of organic fertilizers based on RESUMO Este trabalho teve como objetivo avaliar em condição de laboratório a mineralização do nitrogênio (N) e determinar o índice de eficiência (EI) do N após adição de fertilizantes orgânicos a base de esterco bovino no solo. Foi utilizado o delineamento inteiramente casualizado com quatro repetições. Os tratamentos avaliados foram: T1) Solo (testemunha); T2) Solo + vermicomposto de esterco bovino (CMV); T3) Solo + composto de palha e esterco bovino (CMS); e T4) Solo + esterco bovino (CM

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Mineralization and efficiency index of nitrogen in cattle manure fertilizers on the soil

et al. 2016

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“…In general, it is recommended to apply doses of fertilizers recommended for other crops, and it is necessary to test recommendations based on results of soil analysis, which can widely vary according to the studied environment. One of the promising alternatives for jatropha fertilization is the use of organic material, like cattle manure (Sop et al, 2011;Schulz et al, 2012) and oilseed cakes , or through the application of mineral nitrogen (Prates et al, 2011), phosphate (Carvalho et al, 2013) and potassium (Freiberg et al, 2014) fertilizers, which can be used individually or associated with organic fertilizers (Hussein et al, 2012). The limitations for the availability of nutrients, such as N and P, in the beginning of the vegetative growth can result in restrictions for the formation of the root system and shoots (Silva et al, 2009), as well as for the crop reproductive stage (Pereira et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…, the use of 12 kg hole -1 of cattle manure guarantees good production. In experiments conducted in pots, Schulz et al (2012) recommended the dose of 200 L m -3 of cattle manure for the full growth of jatropha plants. This study aimed to evaluate the effects of different recommendations of organic and phosphate fertilization suggested according to the soil analysis on the vegetative growth and production components of jatropha plants cultivated in pots and irrigated.…”

Section: Introductionmentioning

confidence: 99%

Response of jatropha to organic and phosphate fertilization under irrigated conditions

Lima¹,

Silva²,

Azevedo³

et al. 2016

Aust J Crop Sci

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Jatropha (Jatropha curcas L.) is a perennial species that requires expressive amounts of nutrients in order to produce satisfactorily. An experiment was conducted using pots, arranged in a randomized block design, with four replicates and one plant per plot, in order to evaluate different fertilization recommendations (phosphate fertilizer and cattle manure) based on soil analysis. The treatments consisted of a 4 x 4 factorial scheme, which represented 4 recommendations of organic fertilization [absence of organic fertilization (0 t ha -1 ), recommended dose (4 t ha -1 ), 1.5 times the recommended dose (6 t ha -1 ) and 2 times the recommended dose (8 t ha -1 )] and 4 recommendations of phosphate fertilization [absence of phosphate fertilization (0 kg ha -1 ), recommended dose (90 kg ha -1 ), 1.5 times the recommended dose (135 kg ha -1 ) and 2 times the recommended dose (180 kg ha -1 ). One hundred and eighty days after seedlings were transplanted to the pots, growth variables and production components were measured. Plant height, number of branches, stem diameter, leaf area, number of inflorescences, number of fruits, number of bunches, number of fruits per bunch, mass of fruits, number of seeds per fruit, number of seeds per plant and total mass of seeds per plant were influenced by the fertilization recommendations. The recommendation of organic and phosphate fertilization suggested by the laboratory of soil analysis (4 t ha -1 of organic matter and 90 kg ha -1 of phosphorus) was insufficient to obtain productive plants. The isolated use of organic matter in fertilization of jatropha promotes positive effects on growth variables and production components. The application of 1.5 the dose of organic matter recommended by the laboratory of soil analysis, corresponding to 6 t ha -1 of cattle manure, isolated, or associated with 135 kg ha -1 of P, is sufficient to supply the nutritional demand for N and P in the first cultivation cycle. Phosphate fertilization associated with organic fertilization significantly influenced plant height, number of branches, stem diameter, leaf area, number of seeds per plant and total mass of seeds of jatropha plants.Keywords: Jatropha curcas L.; fertilization recommendation; cattle manure Abbreviations: S_Sum of bases; T_Cation exchange capacity; V_Saturation of bases; OM_Organic matter; DAT_Days after transplant ; LA_Leaf area , Σ_sum of leaf area; L_Midrib lenght; W_leaf width; PH_ Plant height , NLB_Number of leaves per plant, NBP_Number of branches per plant , SD_Stem diameter; LA_Leaf area (%); ns_Not significant; DF_Degree of freedom; C.V_Coefficient of variation; NIP_Number of inflorescences per plant; NFP_Number of fruits per plant; NBP_Number of bunches per plant; NFB_Number of fruits per bunch; MMF_Mean mass of fruits; NSF_Number of seeds per fruit: NSP_Number of seeds per plant; MSP_Mass of seeds per plant.

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“…Alocação de nutrientes entre caule, folha e inflorescência de pinhão-manso Introduction Jatropha (Jatropha curcas L.) is a plant species in Euphorbiaceae family, native to Central or South America (Suriharn et al, 2011;Schulz et al, 2012;Fernandes et al, 2013;Lima et al, 2014a). The capacity to adapt to different environments allows the presence of jatropha plants in a wide range of tropical and subtropical areas worldwide (Joshi et al, 2011).…”

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confidence: 99%

Nutrient allocation among stem, leaf and inflorescence of jatropha plants

Lima

Gheyi

Azevedo

et al. 2015

Rev. bras. eng. agríc. ambient.

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A B S T R A C TInformation on the partitioning of nutrients among various organs in jatropha plants, as a complementary tool for the recommendation of fertilization, is still not available. This study aimed to evaluate the contents of macro and micronutrients in stems, leaves and inflorescences of jatropha branches at the beginning of flowering. At the beginning of flowering, adult jatropha plants were sampled and divided into five compartments: inflorescences, leaves from vegetative branches, leaves from flowering branches, stems from vegetative branches and stems from flowering branches. Jatropha inflorescences are a drain of nutrients. Leaves are important sources of nutrients demanded by the inflorescences at the beginning of flowering. The higher allocation of nutrients in the inflorescences suggests the need for preventive/ corrective fertilizations, which must be performed at least 30 days before flowering, providing plants with nutrients in adequate amounts for a good yield.Alocação de nutrientes entre caule, folha e inflorescência de pinhão-manso R E S U M O Ainda não se dispõe, para a cultura do pinhão-manso, de informações concernentes à compartimentalização dos nutrientes nos diversos órgãos da planta; essas informações são importantes para subsidiar a recomendação de adubação. Objetivou-se, com este trabalho, avaliar os teores de macro e micronutrientes no caule, nas folhas e inflorescências dos ramos de pinhão-manso por ocasião do início do florescimento. Plantas adultas de pinhão-manso foram amostradas durante o início do florescimento dividindo-se a planta em cinco compartimentos (inflorescências, folhas colhidas de ramos vegetativos, folhas colhidas de ramos floríferos, caules de ramos floríferos e caules de ramos vegetativos). As inflorescências do pinhão-manso são um forte dreno de nutrientes. As folhas são importantes fontes de nutrientes demandados pelas inflorescências por ocasião do início da floração. A maior compartimentalização de nutrientes nas inflorescências sugere a necessidade de adubações preventivas/corretivas que devem ser realizadas pelo menos 30 dias antes do florescimento disponibilizando, para as plantas, nutrientes em quantidades adequadas para a obtenção de boa produtividade.

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Initial growth of physic nut as a function of sources and doses of organic fertilizers

Cited by 4 publications

References 5 publications

Mineralization and efficiency index of nitrogen in cattle manure fertilizers on the soil

Mineralization and efficiency index of nitrogen in cattle manure fertilizers on the soil

Response of jatropha to organic and phosphate fertilization under irrigated conditions

Nutrient allocation among stem, leaf and inflorescence of jatropha plants

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