Green mulch decomposition and nitrogen release from leaves of two Inga spp. in an organic alley-cropping practice in the humid tropics

Leblanc, Humberto A.; Nygren, Pekka; McGraw, Robert

doi:10.1016/j.soilbio.2005.05.012

Cited by 28 publications

(34 citation statements)

References 14 publications

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“…Pattern of N release similar to the residue decomposition has been reported in the previous results [2] [20]. Therefore, N remaining decreased with more similar pattern to the DM than P and K remaining on different mowing dates.…”

Section: Discussionsupporting

confidence: 85%

Nutrient Release during Residue Decomposition of Weeds Mown at Different Times in a Persimmon Orchard

Choi¹,

Kim²,

Ahn³

et al. 2017

JACEN

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Decomposition and nutrient release of the residue subsequent to mowing weeds remain poorly understood in persimmon orchards of South Korea. The litterbags including various weed residues were deposited on the soil surface under the tree canopy to simulate the fate of weeds mowed on 13 May, 13 July, and 13 September 2011 and 2012. Rate of decomposition and nutrient release of the residues depended on different mowing times. Residual dry mass (DM) of the 13 May weeds decreased by 17% -21% of initial DM during 1 month and by 63% -71% until 2 months after litterbag deposition, and they released 51% -67% of nitrogen (N), 54% -55% of phosphorus (P), and 92% -94% of potassium (K) of respective initial amount until the first 2 months. The 13 July weeds rapidly decomposed during the first month, accounting for 51% -64% of DM and released 49% -67% of N, 27% -54% of P, and 76% -77% of K. When mowed on 13 September, the weed residue decomposed slower and longer than the 13 May and 13 July weeds, losing 48% -51% of DM, 36% -39% of N, 60% -64% of P, and 70% -77% of K during the first 2 months but continuing an active decomposition even at 6 months after the deposition. The results indicated that time of supplemental fertilization should be adjusted depending on mowing times, and the mowing times be controlled to meet seasonal demand of persimmon trees for nutrients.

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Section: Discussionsupporting

confidence: 85%

Nutrient Release during Residue Decomposition of Weeds Mown at Different Times in a Persimmon Orchard

Choi¹,

Kim²,

Ahn³

et al. 2017

JACEN

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“…Hence, primary sludge, pig slurry and their mixture can be considered as organic fertilisers but only before anaerobic fermentation. We recorded a substantially lower degree of degradation of selected organic substances in sludge, pig slurry and their mixture during incubation with 25% of sandy-loamy soil (5 -25%) than did Leblanc et al (2006) with phytomass of Inga samanensis and Inga edulis leaves, who reported about 50% degradation of total mass, hemicelluloses and nitrogen in mass. We are convinced that it is caused by a very different content of hemicelluloses in our materials compared to the materials used by the above-mentioned authors.…”

Section: Pig Slurry Primary Sludgementioning

confidence: 71%

“…C tot is determined in all three fractions. Degradability of organic matter of the test materials was studied by modified methods of Leblanc et al (2006) used to examine the decomposition of green mulch from Inga samanensis and Inga edulis leaves. These authors conducted their study in outdoor conditions (average annual temperature 25.1ºC) and we had to modify their method in the cold climate of this country.…”

Section: Fundamental Issues To Solvementioning

confidence: 99%

“…Because ADF contains lignin, cellulose and mineral fraction, it was possible to determine the cellulose content by ashing the residue in a muffle furnace and by determination of mineral fraction. These methods were described by Van Soest (1963), modifications used by Columbian authors (Leblanc et al 2006) were reported by López et al (1992). Ion exchange capacity [mmol.chem.eq./kg] was determined in dry matter of the examined materials according to Gillman (1979), buffering capacity was determined in samples induced into the H + -cycle with HCl diluted with water at 1 : 1 and washed with water until the reaction to Cl -disappears.…”

Section: Fundamental Issues To Solvementioning

confidence: 99%

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Utilisation of Waste from Digesters for Biogas Production

Kolář¹,

Kužel²,

Peterka³

et al. 2011

Biofuel's Engineering Process Technology

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“…is a species that has been used by Latin American farmers aiming to provide shade for coffee (Coffea arabica L.) and cacao (Theobroma cacao L.) plants (Leblanc et al, 2006). This leguminous plant is also commonly intercropped with Terminalia amazonia (J. F.…”

Section: Introductionmentioning

confidence: 99%

Symbiotic effectiveness of Bradyrhizobium ingae in promoting growth of Inga edulis Mart. seedlings

Porto

Farias

Chaves

et al. 2017

Rev. Bras. Ciênc. Solo

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Inga edulis Mart. is a leguminous tree adapted to acidic and low-fertility soils that establishes symbioses with nitrogen (N)-fixing bacteria. The identification of effective bacteria in biological N fixation may bolster the use of I. edulis in degraded or modified areas and agroforestry systems. Therefore, the aims of this study were evaluation of the symbiotic effectiveness of eight strains of the Bradyrhizobium genus native to Roraima in Inga edulis plants, and in vitro evaluation of the ability of the eight strains of Bradyrhizobium to develop plant growth-promoting characteristics. Determination of symbiotic effectiveness was carried out via three experiments: the first in a greenhouse in pots with a sterile substrate; the second in a greenhouse in pots containing non-sterile soil; and the third in a nursery in bags with a non-sterile substrate. Twelve treatments were evaluated: inoculation with eight strains of Bradyrhizobium ingae (ERR 490, ERR 492, ERR 493, ERR 494 T , ERR 496, ERR 497, ERR 498, and ERR 569); inoculation with two strains indicated for Inga marginata, BR 6609 and BR 6610 (positive controls); no inoculation but with mineral N; and neither inoculation nor mineral N. All of the experiments were conducted in a completely randomized design with four replicates. The first experiment was conducted for 60 days, and the other experiments were conducted for 100 days. For all of the experiments, the number of nodules, nodule dry matter, root dry matter, shoot dry matter, number of leaflets, plant height, stem diameter, total N in the shoots, root/shoot dry matter ratio, Dickson's quality index, relative effectiveness, and the Pearson correlation between the variables under study were evaluated. The strains were also evaluated by their ability to solubilize calcium and aluminum phosphates and to produce indolic compounds. The results showed that B. ingae strains were effective in biological N fixation, especially the ERR 493, ERR 498, and ERR 569 strains. These strains increased the production of shoot dry matter and total N and exhibited relative effectiveness higher than 100 % in all of the experiments. The B. ingae strains were also able to solubilize calcium and aluminum phosphates, despite their synthesis of indolic compounds. Thus, the strains of B. ingae can be used for inoculation in the production of I. edulis seedlings.

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Green mulch decomposition and nitrogen release from leaves of two Inga spp. in an organic alley-cropping practice in the humid tropics

Cited by 28 publications

References 14 publications

Nutrient Release during Residue Decomposition of Weeds Mown at Different Times in a Persimmon Orchard

Nutrient Release during Residue Decomposition of Weeds Mown at Different Times in a Persimmon Orchard

Utilisation of Waste from Digesters for Biogas Production

Symbiotic effectiveness of Bradyrhizobium ingae in promoting growth of Inga edulis Mart. seedlings

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