Soil water under conventional and alternative cropping systems in cryoboreal subhumid central Alberta

Izaurralde, R. C.; Chanasyk, D. S.; Juma, N. G.

doi:10.4141/cjss94-011

Cited by 11 publications

(6 citation statements)

References 11 publications

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“…Thus, in the cowpeamaize intercrop, there might be a more fully exploitation of the soil moisture than in sole maize. Similar findings were shown by other researcher (Izaurralde et al, 1994) including greater water use efficiency in a pea-barley intercrop than in either of the sole crops. The soil collected in first year planting season had significantly lower soil moisture content than soil collected in second year planting season.…”

Section: Resultssupporting

confidence: 90%

Evaluation of the effect of maize-legume intercropping on soil moisture improvement in arid area of Bena-Tsemay district, South omo zone, Southern Ethiopia

Ayele

2020

Int. J. Agril. Res. Innov. & Tech.

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Usually crop failure due to moisture shortage in soils is very much common due to high evaporation. Sometimes famers try to combat this problem by using mulches of crop residues in the study area. However, this is also highly challenged shortage because the crop residues used as feed for animals. Therefore, using the advantage and opportunity of cover legumes as an intercrop is the solution of the problems simultaneously in addition to their contribution improving soil nutrient balance and other many fold benefits. Therefore, this study aimed for evaluating the effect of maize-legume covers intercropping on soil moisture improvement and crop yield in moisture stress areas of the study area. The entire grain yield of maize and legumes, as well as soil moisture data were collected. The result on soil moisture revealed that intercropping of maize with cowpea had better soil moisture contents during active crop development (15.98%) and after harvest (16.70%) in average as compared to the others. The current finding also showed that adopting intercropping of maize with cowpea-boosted yield by 5256.24 kg ha-1 maize and 977.45 kg ha-1 cowpea in average with higher moisture improvement as compare to the other treatments. Therefore, intercropping of maize with cowpea is important to farmers since it would provide additional crop yield with the same piece of land. However, to get considerable changes on soil and water balances, other soil physic-chemical properties and crop yields, conducting similar studies in more than two years period at permanent field plots is paramount in the future. Int. J. Agril. Res. Innov. Tech. 10(1): 80-86, June 2020

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Section: Resultssupporting

confidence: 90%

Evaluation of the effect of maize-legume intercropping on soil moisture improvement in arid area of Bena-Tsemay district, South omo zone, Southern Ethiopia

Ayele

2020

Int. J. Agril. Res. Innov. & Tech.

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“…The calculated LER for the grain yield of sorghum and pigeon pea was 0.9 while LER for sorghum with cowpea was 1.25, which was higher than1, which indicated the benefits of intercropping. According to the finding of Izaurralde et al (1994), the LER value greater than 1 implies more efficient utilization of land by intercrops as compared to growing monocrop in the farms. In addition, intercropping favors the growth and yield of the crops reducing weed distribution, paste and disease.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the effect of sorghum-legume intercropping and its residual effect on yield of sorghum in yeki woreda, sheka zone, Ethiopia

Gebremichael¹,

Bekele

Tadesse³

2020

Int. J. Agril. Res. Innov. & Tech.

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The imbalance between the crop production and population growth is currently the major issue in southern Ethiopia. To feed the growing population, increasing the production of food through growing more crop types in the same field as an intercropping is the right strategy. The current study was aimed at evaluating the effect of sorghum-legume intercropping and its residual effect on yield of sorghum. The land equivalent ratio was calculated for sorghum intercropped with pigeon pea and cowpea. Intercropping sorghum with pigeon pea and cowpea increases the land productivity as its Land Equivalent Ratio is greater than 1. In both cases, the land equivalent ratio is greater than 1 indicating the benefits of intercropping. The residual effect of sorghum intercrop with legumes was evaluated on the yield of sorghum. Although there was no statistically significance differences on yield and yield component of sorghum, sorghum planted on the plot of pigeon pea and cowpea sole has 44.6% and 27.8% yield advantage relative to sorghum alone respectively. Planting sorghum under sorghum-cowpea intercropped condition increase the yield of sorghum by 41.8%. The result also shows 74.0% sorghum yield change was observed when planted after intercropped condition of sorghum with pigeon pea. The productivity of sorghum also increases when planted on the plot of sole legume. The current finding in general shows that legume crops contributed to the yield of sorghum either intercropped with legume or grown up using residual contribution of legumes after a year. Therefore, for maximum sorghum production farmers in the area should plant either as intercrop or after residual effect of legumes. Int. J. Agril. Res. Innov. Tech. 9(2): 62-66, December 2019

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“…Light is often the most limiting resource if water and nutrient requirements of crops are met (Francis, 1989) and frequently the most important factor related to overyielding by crop mixtures that exhibit temporal complementarity (Willey, 1979). The study of water use in cropping systems is important because water is the most limiting factor for plant production in arid to semiarid regions (Izaurralde et al, 1994; Droppelmann et al, 2000) and water is the medium that transports all other soil‐based resources (Vandermeer, 1989). Light interception may exert a strong influence on soil water content through plant canopy affects on rates of evapotranspiration, and vice versa through soil water effects on canopy development; therefore, light and water use are often correlated in cropping studies (Keating and Carberry, 1993; Morris and Garrity, 1993; Caviglia et al, 2004).…”

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confidence: 99%

Land Equivalent Ratios, Light Interception, and Water Use in Annual Intercrops in the Presence or Absence of In‐Crop Herbicides

Szumigalski

Acker

2008

Agronomy Journal

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IntercroppingA gronomy J our n al • Volu me 10 0 , I s sue 4 • 2 0 0 8 ABSTRACT Increased crop production (overyielding) oft en observed in intercrops compared to sole crops has been attributed to enhanced resource use. Th e objective of this study was to investigate intercropping complementarity of wheat (Triticum aestivum L.), canola (Brassica napus L.), and fi eld pea (Pisum arvense L.) for light and water use. Sole crop and intercrop combinations were evaluated for eff ects on land equivalent ratios (LERs), canopy light interception, soil moisture, water use (WU), and water use effi ciency (WUE), with or without in-crop herbicides at two fi eld sites in Manitoba, Canada. Th e mean LER was 1.1, but LERs varied greatly between site-years and herbicide treatments, and were signifi cantly greater than one in 22% of the site-year-treatment combinations. Th e wheat-canola-pea and canola-pea intercrops showed the greatest frequency of overyielding for dry matter (50%) and grain yield (38%), respectively. Peak light interception tended to occur earlier with canola than with fi eld pea, thus increasing the potential for light use complementarity between these crops. Th ere was a positive correlation between LER and light interception in half of the site-years with applied herbicides and a negative correlation between LER and weed biomass at most site-years without herbicides. Although crop treatments used water diff erently within the soil profi le, there were no diff erences in WU, but some diff erences in WUE, between crop treatments; however, WUE generally was not greater in intercrops compared to sole crops. In this study, overyielding in intercrops was inconsistent, and seemed to be related more to light interception than to water utilization.

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Soil water under conventional and alternative cropping systems in cryoboreal subhumid central Alberta

Cited by 11 publications

References 11 publications

Evaluation of the effect of maize-legume intercropping on soil moisture improvement in arid area of Bena-Tsemay district, South omo zone, Southern Ethiopia

Evaluation of the effect of maize-legume intercropping on soil moisture improvement in arid area of Bena-Tsemay district, South omo zone, Southern Ethiopia

Evaluation of the effect of sorghum-legume intercropping and its residual effect on yield of sorghum in yeki woreda, sheka zone, Ethiopia

Land Equivalent Ratios, Light Interception, and Water Use in Annual Intercrops in the Presence or Absence of In‐Crop Herbicides

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