Effects of straw mulch on mungbean yield in rice fields with strongly compacted soils

Bunna, Som; Sinath, P.; Ouk, Makara; Mitchell, J. H.; Fukai, S.

doi:10.1016/j.fcr.2011.06.015

Cited by 41 publications

(19 citation statements)

References 11 publications

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“…Blue symbols are data from temperate zones and red symbols from tropical zones. Black curves are the boundary lines using the maximum likelihood methodology Data were from Ahmed et al 2007, Bilalis et al 2003, Bunna et al 2011, Campiglia et al 2010, Chauhan and Johnson 2011, Chauhan and Abugho 2013, Chauhan 2013, Mischler et al 2010, Ngwira et al 2014, Peachey et al 2004, Radicetti et al 2013, Teasdale and Mohler 2000, Webster et al 2013. Ym: value of mulch soil, Yb: value of bare soil, see equations 2 and 3…”

Section: Maximum Effects Of Crop Residue Covermentioning

confidence: 99%

Agro-ecological functions of crop residues under conservation agriculture. A review

Ranaivoson

Naudin

Ripoche

et al. 2017

Agron. Sustain. Dev.

171

105

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Conservation agriculture, which is based on minimum tillage, permanent soil cover and crop rotations, has widely been promoted as a practice to maintain or improve soil quality and enhance crop productivity. To a large extent, the beneficial effects of conservation agriculture are expected to be provided by permanent soil cover with crop residues. Surface crop residues play an important role for crop growth through their benefits on soil-related structural components and processes in the agro-ecosystem, referred to in this study as agro-ecological functions. Through a meta-analysis of the literature, we have studied the relative effects of surface crop residue levels on the performance of a set of agro-ecological functions compared with a no-till bare soil, i.e., without surface residues. The selected agro-ecological functions were soil water evaporation control, soil water infiltration, soil water runoff control, soil loss control, soil nutrient availability, soil organic carbon (SOC) stocks and gains, weed control and soil meso- and macrofauna abundance. The potential effects of crop residue cover were quantified using boundary line models. Our main findings were (1) 8 t ha−1 of residues were needed to decrease soil water evaporation by about 30% compared to no-till bare soil. (2) To achieve the maximum effect on soil water infiltration, water runoff and soil loss control, residue amounts of at least 2 t ha−1 were required. (3) The effect of increasing the amounts of surface crop residues on soil nutrient supply (N, P and K) was relatively low; the boundary line models were not significant. (4) The average annual SOC gain increased with increasing amounts of residues, with a mean of 0.38 t C ha−1 year−1 with 4 to 5 t ha−1 of residues. (5) Weed emergence and biomass can be reduced by 50% compared to a no-till bare soil with residue amounts of 1 t ha−1 or more. (6) There was a weak response in soil meso- and macrofauna abundance to increasing amounts of surface crop residues. The maximum effect corresponded to an increase of 45% compared to a no-till bare soil and was reached from 10 t ha−1 of residues. Our findings suggest that optimal amounts of surface residues in the practice of conservation agriculture will largely depend on the type of constraints to crop production which can be addressed with mulching. (Résumé d'auteur

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Section: Maximum Effects Of Crop Residue Covermentioning

confidence: 99%

Agro-ecological functions of crop residues under conservation agriculture. A review

Ranaivoson

Naudin

Ripoche

et al. 2017

Agron. Sustain. Dev.

171

105

View full text Add to dashboard Cite

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“…It might be due to the fact that mulching do not allow solar radiation to reach the soil surface which reduced the growth of weeds. Bunnaa et al (2011) reported that mulching of rice straw at 1.5 t/ha improved mungbean crop establishment from 72 to 83%, reduced weed biomass from 164 to 123 kg/ha and increased yield from 228 to 332 kg/ha. The effect of mulch on mungbean yield may be considered through its effect on improved crop growth and reduced weed dry biomass, and also its effect on mungbean growth directly through favourable water and perhaps temperature conditions.…”

Section: Irrigationmentioning

confidence: 99%

Effect of irrigation, straw mulching and weed control on growth, water useefficiency and productivity of summer mungbean

Ram

Singh

Aggarwal

2016

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The field experiment was conducted during summer season of 2008 on loamy sand soil. The experiment was comprised of eighteen treatment combinations with three irrigation treatments (two, three and four irrigations), two weed control methods (pendimethalin 0.75 kg/ha as pre-emergence and unweeded) and three mulching treatments (no mulching, mulching at sowing and straw mulching at 25 days after sowing). Three irrigations recorded significantly higher grain yield (1430 kg/ha) than two irrigations (1138 kg/ha) but statistically at par with four irrigations (1465 kg/ha). Water use efficiency was also higher in three irrigations. Pendimethalin @ 0.75 kg/ha was found to be effective in controlling weeds and increasing the grain yield as well as water use efficiency. Mulching applied at 25 days after sowing recorded the higher grain yield (1430 kg/ha) than no mulch (1289 kg/ha) and mulching at sowing (1364 kg/ha).

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“…As in the experiment reported here, Bunnaa et al . () found that mulching of rice straw at 1.5 t/ha in Cambodia increased mungbean crop establishment, reduced weed biomass and increased yield. Mulch was also effective in conserving soil moisture which was 1.5% higher in the mulched than unmulched treatments at maturity.…”

Section: Discussionmentioning

confidence: 99%

Mulch effect on successive crop yields and soil carbon in Tonga

Manu

Whitbread

Blair

2016

Soil Use and Management

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Intensification of crop production in Tonga has resulted in a move to mechanical soil preparation, often with a rotary hoe, and a consequent loss in both chemical physical fertility. An experiment was conducted on a clay loam soil (Typic Argiudoll) on the Forestry Vaini Research Station, Tongatapu Island, Tonga, to investigate the effect of a once-off application of mulch on yield and quality of watermelon, maize and capsicum grown in rotation over a 1-yr period. The treatments applied were a nonmulched control, transparent plastic and 200-mm-thick applications of locally available coconut sawdust, guinea grass and mature coconut fronds. The fresh fruit yield of watermelon in all the mulch treatments was 7.3-18.1% higher than in the nonmulched control. There was no significant effect of thick vegetative mulch on maize grain dry matter yield; however, the maize yield was significantly lower in the transparent plastic mulch than in the other treatments. The capsicum marketable fruit yield in the following crop was increased by 49-73% in all the vegetative mulch treatments compared to the non-mulched control. The higher crop yields with the vegetative mulch were attributed to the measured lower soil temperatures and higher soil moisture in these treatments. There was no effect of mulch on soil total N (TN), but soil total C (TC), soil labile C (LC) and the carbon management index (CMI) were increased.

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Effects of straw mulch on mungbean yield in rice fields with strongly compacted soils

Cited by 41 publications

References 11 publications

Agro-ecological functions of crop residues under conservation agriculture. A review

Agro-ecological functions of crop residues under conservation agriculture. A review

Effect of irrigation, straw mulching and weed control on growth, water useefficiency and productivity of summer mungbean

Mulch effect on successive crop yields and soil carbon in Tonga

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