scholarly journals Early planting, management of edges and non-crop habitats reduce potyvirus infection in maize

2020 ◽  
Vol 40 (4) ◽  
Author(s):  
Gemma Clemente-Orta ◽  
Ramon Albajes ◽  
Maria Angeles Achon
Keyword(s):  
Early Planting

Influence of planting date and row covers on yields and crop values for bell peppers in Saskatchewan

1992 ◽  
Vol 72 (2) ◽  
pp. 527-533 ◽  
Author(s):  
D. R. Waterer
Keyword(s):  
Fruit Set ◽  
Frost Damage ◽  
Planting Date ◽  
Early Planting ◽  
Row Covers ◽  
Crop Development ◽  
Bell Peppers ◽  
Premium Price ◽  
Black Plastic ◽  
Crop Maturity

In 1989 and 1990, bell peppers transplanted into the field in mid-May, late May or early June were grown with a black plastic soil mulch and no cover (NC) or under tunnels of perforated clear polyethylene (PT) or spunbonded polyester (ST). The ST treatment provided several degrees of frost protection, whereas the PT treatment appeared to increase the crop’s susceptibility to frost damage. Early planting had little effect on total fruit yields but did accelerate the harvest. In both years, the ST accelerated crop maturity and increased total fruit yields relative to the noncovered treatment. At times the PT improved crop development and increased fruit yields, but in many cases it reduced fruit yields relative to the noncovered treatment. By promoting early fruit set and development, early planting under the spunbonded row covers significantly enhanced the value of the crop, as early peppers command a premium price in Saskatchewan. Cumulative crop values for the PT treatments were generally similar to or poorer than those for the noncovered control.Key words: Bell pepper, Capsicum annuum, planting date, row covers, frost

scholarly journals Effect of plant density on growth and yield of new soybean genotypes grown under early planting condition in southwestern Japan

2018 ◽  
Vol 21 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Naoki Matsuo ◽  
Tetsuya Yamada ◽  
Yoshitake Takada ◽  
Koichiro Fukami ◽  
Makita Hajika
Keyword(s):  
Plant Density ◽  
Growth And Yield ◽  
Early Planting ◽  
Soybean Genotypes

Early Planting Dates Maximize Soybean Yield in Kentucky

cftm ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 180085
Author(s):  
Carrie Knott ◽  
James Herbek ◽  
John James
Keyword(s):  
Planting Dates ◽  
Soybean Yield ◽  
Early Planting

Ultra-Early Planting Effects on Maize Crop Development, Yield, and Weed Control

2007 ◽  
Vol 8 (2) ◽  
pp. 57-72
Author(s):  
Demosthenis Chachalis ◽  
Petros C. Lolas ◽  
George Zanakis
Keyword(s):  
Weed Control ◽  
Maize Crop ◽  
Early Planting ◽  
Crop Development

Effects of planting date and dinocap applications on the control of powdery mildew and yields of seed and seed oil in coriander

2000 ◽  
Vol 135 (2) ◽  
pp. 193-197
Author(s):  
A. KALRA ◽  
T. N. PARAMESWARAN ◽  
N. S. RAVINDRA ◽  
M. GOPAL RAO ◽  
SUSHIL KUMAR
Keyword(s):  
Powdery Mildew ◽  
Disease Severity ◽  
Seed Oil ◽  
Planting Date ◽  
Planting Dates ◽  
Early Planting ◽  
Early Maturing ◽  
Levels Of Control

Experiments were conducted during 1992/93 and 1993/94 to determine the effect of different planting dates and dinocap applications on control of powdery mildew and yields of early and late maturing coriander cultivars. Early plantings resulted in lower overall disease severity values for both the cultivars, but the late maturing cultivar S-33 benefited more than RD-44, an early maturing cultivar. Early planting resulted in smaller increases in yield in RD-44 but provided considerable economic gains in S-33. Further, it was possible to achieve similar levels of control of powdery mildew and yields in coriander with fewer dinocap applications by early plantings of both the cultivars. Therefore, to reduce the fungicide inputs, it is important that emphasis should be placed on early plantings for managing powdery mildew especially in environments conducive for its development.

Planting Date and Preplant Weed Management Influence Yield, Water Use, and Weed Seed Production in Herbicide-Free Forage Barley

2008 ◽  
Vol 22 (3) ◽  
pp. 486-492 ◽  
Author(s):  
Andrew W. Lenssen
Keyword(s):  
Seed Production ◽  
Water Use ◽  
Great Plains ◽  
Weed Management ◽  
Planting Date ◽  
Management Systems ◽  
Northern Great Plains ◽  
Zero Tillage ◽  
Weed Seed ◽  
Early Planting

In the semiarid northern Great Plains, the adoption of zero tillage improves soil water conservation, allowing for increased crop intensification and diversification. Zero-tillage crop production relies heavily on herbicides for weed management, particularly the herbicide glyphosate, increasing selection pressure for herbicide-resistant weeds. Barley is well adapted to the northern Great Plains, and may be a suitable herbicide-free forage crop in zero-tillage systems. A 2-yr field study was conducted to determine if planting date influenced crop and weed biomass, water use (WU), and water-use efficiency (WUE) of barley and weed seed production in three preplant weed management systems: (1) conventional preplant tillage with a field cultivator (TILL); (2) zero tillage with preemergence glyphosate application (ZTPRE); and (3) zero tillage without preemergence glyphosate (ZT). None of the systems included an in-crop herbicide. Planting dates were mid-April (early), late May (mid), and mid-June (delayed). Early planting of ZT barley resulted in excellent forage yields (7,228 kg/ha), similar to those from TILL and ZTPRE. Early planting resulted in a small accumulation of weed biomass, averaging 76 kg/ha, and no weed seed production regardless of preplant weed management system. Early planting resulted in higher WU than delayed planting, averaging 289 and 221 mm, respectively, across management systems and years. The WUE of crop and total biomass did not differ among preplant weed management systems at harvest from the early planting date. Delayed planting resulted in decreased forage yield with high amounts of weed biomass and seed production, especially in ZT. A pre-emergence glyphosate application was not necessary for early-planted ZT forage barley. Early planting of herbicide-free barley for forage can be an excellent addition to northern Great Plains cropping systems as part of a multitactic approach for improved weed and water management.

scholarly journals Progress of White Rot on Garlic Cultivars Planted at Different Times

Plant Disease ◽  
1998 ◽  
Vol 82 (10) ◽  
pp. 1142-1146 ◽  
Author(s):  
Cleide M. F. Pinto ◽  
Luiz A. Maffia ◽  
Richard D. Berger ◽  
Eduardo S. G. Mizubuti ◽  
Vicente W. D. Casali
Keyword(s):  
Management Strategy ◽  
Allium Sativum ◽  
Average Duration ◽  
Minas Gerais ◽  
Causal Agent ◽  
White Rot ◽  
Sclerotium Cepivorum ◽  
Early Planting ◽  
Minas Gerais State ◽  
Epidemiological Parameters

In the region of Amarantina, Minas Gerais state, Brazil, four annual experiments with garlic (Allium sativum) were established in fields infested with Sclerotium cepivorum, causal agent of garlic white rot, to investigate the effect of time of planting on the day when disease was first noticed (tonset), incidence at harvest (yf), duration of epidemics (tf — tonset), and the response of five cultivars to white rot. Most epidemiological parameters were similar among cultivars. In 1986 to 1988, no white rot was observed on garlic planted during the warm temperatures in January. The average onset of white rot occurred at different times dependent on the day of planting as average temperatures decreased from January to May. That is, for February plantings, onset occurred after 93 to 140 days (between 1 June and 5 July); for March plantings, about 90 days (15 to 28 June); for mid-April plantings, about 77 days (1 July); and mid-May plantings, about 66 days (20 July). Because of these different times of onset, the average duration of epidemics was shorter for crops planted in February (30 days) compared to crops planted in March (48 days) or April to May (54 to 69 days). In general, most disease (highest incidence and longest duration) occurred on crops planted in March to May. Therefore, severe losses to white rot would be expected when garlic is planted at the traditional times (March and April) in areas infested with sclerotia of S. cepivorum. The early planting of garlic is recommended as an important management strategy to avoid white rot in areas with these infested soils.

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