Quality of different mulch materials and their decomposition and N release under low moisture regimes

Seneviratne, G.; Holm, Lena; Kulasooriya, S. A.

doi:10.1007/s003740050356

Cited by 27 publications

(14 citation statements)

References 7 publications

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“…Agroforestry being a people ori ented program, farmer's preference should be acknowledged, but the performance of these species is needed to be scientifically assessed with due attention in terms of nutri ent return efficiency for further promotion. However, nutrient return from a tree is influ enced by quantity, quality (nutrient composi tion) and rate of leaching and decomposition of plant litter (Senevirante et al 1998, Kwa biah et al 2001. Leaf litter is the main and quick source of nutrient return to the soil compared to other litter components (Tukey 1970, Wetzel & Manny 1972, Mason 1977, Dahm 1981, Park & Hyun 2003.…”

Section: Introductionmentioning

confidence: 99%

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Mahmood¹,

Limon²,

Rahman³

et al. 2009

iForest

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© iForest -Biogeosciences and Forestry IntroductionChemical fertilizer is now commonly used in agricultural practices, but it becomes ex pensive and farmers are reducing its use due to negative environmental impacts (Good et al. 2004). In addition, access to fertilizer in developing nations is limited (Sanchez 2002). It is an important task to gain a better understanding how agricultural practices can be designed with low input of fertilizer. Maintenance of soil productivity is a critical issue in a tropical agroecosystems. Agro forestry practice is an important component of it. Tropical farmers use this practice for their dependence on organic residues as low cost and readily available nutrients for soil fertility management (Nair 1989, Kwabiah et al. 2001. To this regard, agroforestry got special impetus in tropical agriculture.Farmers of the tropical region traditionally use variety of species composition in agro forestry practices. In Bangladesh, legumi nous tree species are traditionally used in different agroforestry practices. Presently, farmers prefer Eucalyptus camaldulensis and Swietenia macrophylla due to their commer cial values. Agroforestry being a people ori ented program, farmer's preference should be acknowledged, but the performance of these species is needed to be scientifically assessed with due attention in terms of nutri ent return efficiency for further promotion. However, nutrient return from a tree is influ enced by quantity, quality (nutrient composi tion) and rate of leaching and decomposition of plant litter (Senevirante et al. 1998, Kwa biah et al. 2001. Leaf litter is the main and quick source of nutrient return to the soil compared to other litter components (Tukey 1970, Wetzel & Manny 1972, Mason 1977, Dahm 1981, Park & Hyun 2003. The present study aimed to assess the pattern of nutrients leaching (N, P and K) from the leaf litter of E. camaldulensis and S. macro phylla in laboratory condition. Materials and Methods Leaf litter selection and leaching exper imentBulk of yellowish senescent leaves of E. camaldulensis and S. macrophylla were col lected during March 2007 (maximum leaf fall period). This period corresponds to dry season and no leaching was occurred from litter. Litter was air-dried at room tempera ture for one week. For each species, air-dried leaves were thoroughly mixed and weighted to two grams as an individual sample and thus a total of 42 samples were prepared. Each sample was placed at room temperature into individual beaker (500 ml) and 250 ml of distilled water was poured to each beaker and few drops of HgCl2 solution (50 mg l -1 - McLachlan 1971, Otsuki & Wetzel 1974 were added in each beaker to prevent fungal decay. Five samples were kept into an oven at 80°C until constant weight to get the airdry to oven-dry conversion weight. Sample collection and measurementsThree replicates of samples were collected at 0, 1, 2, 3, 4, 8, 12, 24, 36, 48, 72 and 96 hours of intervals and the collected samples were ringed by distilled water and ovendried at 80°C to const...

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Section: Introductionmentioning

confidence: 99%

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Mahmood¹,

Limon²,

Rahman³

et al. 2009

iForest

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“…the presence or absence of mulch on the soil surface or the spreading of fragments in the soil, modifies the physical, biological and chemical properties of soil, such as water content, temperature, O 2 content (Allmaras et al 1996), N content, pH and the composition of the decomposer community (Holland and Coleman 1987). The reduced rate of decomposition usually observed under field conditions on the surface (Seneviratne et al 1998) may be attributed to a limited contact between soil and plant residues. Under controlled conditions, differences related to residue placement appear unclear and sometimes contradictory depending on the duration of incubation or the residue quality (Cogle et al 1989;Tester 1988).…”

Section: Introductionmentioning

confidence: 99%

Mineralisation of crop residues on the soil surface or incorporated in the soil under controlled conditions

Abiven

Recous

2007

Biol Fertil Soils

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In the present work, we compare the effect of mature crop residues mixed into a ferralitic soil or placed as a single layer on soil surface on the mineralisation of C and N over 55 days. As residues, we used dry stems of rice, soybean, sorghum, brachiaria and wheat. There were no significant effects of residue placement on C mineralisation kinetics. Decomposition of the residues on the soil surface slightly increased net N mineralisation for residues having the smallest C/N ratio.

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“…Therefore it must be considered that some of the C input already mineralized after it was incorporated into the soil because in organic systems the soil tillage operations (including sowing the CC) were made in the end of August and at the beginning of September when there was no frost, thus the climatic conditions did not inhibit the mineralization. The mineralization was also promoted because the decomposition of buried residues is generally faster than of surfaceplaced plant residues (Seneviratne et al, 1998;Coppens et al, 2006). This is due to a moisture because which is moisture is best stored in soil plant residues (Parr and Papendick, 1978).…”

Section: Table 13mentioning

confidence: 99%

Soil carbon dynamics estimation and dependence on farming system in a temperate climate

Kauer

Tein

Cima

et al. 2015

Soil and Tillage Research

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Quality of different mulch materials and their decomposition and N release under low moisture regimes

Cited by 27 publications

References 7 publications

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Nutrients (N, P and K) dynamics associated with the leaf litter of two agroforestry tree species of Bangladesh

Mineralisation of crop residues on the soil surface or incorporated in the soil under controlled conditions

Soil carbon dynamics estimation and dependence on farming system in a temperate climate

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