Interaction of Tillage and Cultivars in Peanut Production Systems1

Grichar, W. James; Smith, O. D.

doi:10.3146/i0095-3679-19-2-8

Cited by 9 publications

(10 citation statements)

References 7 publications

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“…Despite initial reports by Boswell and Grichar (1) that southern blight was a major problem in reduced‐tillage systems, later work indicated no differences in southern blight disease development among tillage systems (5). Grichar and Smith (6,8) also reported that southern blight was not a major deterrent to reduced‐tillage production of peanuts.…”

Section: Tillage System Effects On Peanut Yield and Qualitymentioning

confidence: 99%

“…Peanut growers are also concerned that reduced tillage systems will lead to lower yield and poor quality. While studies in the southwestern US have shown yield reductions with no-tillage systems (5,6,7,8); several studies conducted in the southeastern United States have identified conservation tillage production practices that have produced peanut yields equivalent to those measured under conventional tillage (2,3).…”

Section: Introductionmentioning

confidence: 99%

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Peanut Response to Conservation Tillage Systems

Grichar

2006

Crop Management

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Field studies were conducted during the 2003 and 2004 growing seasons in the south Texas peanut‐growing area to compare yield and quality of peanut (Arachis hypogaea L.) among three conservation tillage systems (strip‐till, reduced‐till, and terra‐till) and a conventional tillage system. The strip‐tillage system produced the lowest peanut yields and net returns in both years of the study, while the terra‐till system produced yields and net returns comparable to the conventional tillage system. Since the soils at this location were high in sand content (> 70%), compaction was not a problem. However, in 2003, digging of the strip‐tillage plot was a problem. Peanuts in the strip‐tillage system were planted flat compared with the other systems and the blades of the peanut digger were not able to penetrate far enough into the ground to dig all the peanut pods. Therefore, many pods were pulled off the vine or left in the soil during the digging operation. In 2004, the blades of the peanut digger were adjusted to reduce this problem but peanut yield in this system was still low.

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Section: Tillage System Effects On Peanut Yield and Qualitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Peanut Response to Conservation Tillage Systems

Grichar

2006

Crop Management

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“…Although conservation tillage has been used in other crops for over 30 yr, only during the past 20 yr has interest developed for its use in peanut production (Boswell and Grichar, 1981;Grichar and Boswell, 1987;Porter, 1991,1995;Grichar and Smith, 1992).…”

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confidence: 98%

Long-Term Effects of Three Tillage Systems on Peanut Grade, Yield, and Stem Rot Development1

Grichar¹

1998

Peanut Science

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Field studies were conducted from 1987 to 1996 to evaluate the effects of long-term no-tillage, reducedtillage, or full-tillage systems on peanut grade, yield, and stem rot (Scleratium rolfsii) disease development. In 3 of 10 yr the full-tillage system outylelded the no-tillage system while the reduced tillage system resulted in yield increase over no-tillage systems in 2 yr. Reduced-tillage plots had a higher incidence of stem rot than full-or notillage in 4 of 10 yr. In 3 of 10 yr, peanut grade (% TS MK) was lower in no-tillage than full-tillage plots. The reduced tillage system has shown promise for use in Texas for peanut. However, no-tillage peanut systems have never produced yield and quality comparable to fulltillage systems.

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“…Seven studies, four of which were conducted with the virginia market type, favored conventional, high intensity tillage practices that could not be considered conservation tillage Grichar and Boswell, 1987;Jordan et al, 2001;Jordan et al, 2003;Minton et al, 1991;Wright and Porter, 1991a;Wright and Porter, 1995). Not surprisingly, seven other studies showed no differences in conservation tillage systems versus conventional tillage (Chapin et al, 2001;Grichar, 2006;Grichar and Smith, 1992;Grichar and Smith, 1992;Johnson et al, 2001;Wiatrak et al, 2004). In fact, a comparison of the sources named above indeed shows the same authors with studies that support conservation tillage, give it no clear advantage, or even oppose conservation tillage for peanut.…”

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confidence: 89%

Interaction of Tillage System and Irrigation Amount on Peanut Performance in the Southeastern U.S

et al. 2012

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A five-year study to investigate the potential interaction of conservation tillage with reduced irrigation amounts was conducted near Dawson, GA on peanut (Arachis hypogaea L.). Conventional tillage was compared to two conservation tillage programs (wide-strip and narrow-strip tillage) under four irrigation levels (100, 66, 33, and 0% of a recommended amount). Peanut yield did not exhibit a tillage by irrigation interaction as expected, although the main effects of irrigation and tillage were each significant by year due to weather variations. Peanut yield in narrow-strip tillage or wide-strip tillage were individually superior to conventional tillage in three seasons out of five, however only in one year did both conservation tillage systems outperform the conventional system. No detrimental effects on yields could be attributed to conservation tillage. Peanut quality and digging loss were dependent on the tillage by year effect as well as the main effect of irrigation. Irrigation increased total sound mature kernels (TSMK) 2% versus non-irrigated (0% irrigation level); tillage was not significant each year of the study but increased TSMK 2% in three of five years. Digging losses were greater in plots with increased yield potential such as those receiving irrigation. Net economic returns revealed a moderate trend towards sustained profitability under reduced irrigation levels through narrow-strip tillage and to a lesser extent, wide-strip tillage. Under conventional tillage systems, returns decreased with decreasing amounts of irrigation applied.

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Interaction of Tillage and Cultivars in Peanut Production Systems1

Cited by 9 publications

References 7 publications

Peanut Response to Conservation Tillage Systems

Peanut Response to Conservation Tillage Systems

Long-Term Effects of Three Tillage Systems on Peanut Grade, Yield, and Stem Rot Development1

Interaction of Tillage System and Irrigation Amount on Peanut Performance in the Southeastern U.S

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