Results 11 to 20 of about 291,358 (158)
Residual herbicides increase the period prior to interference in soybean cultivars [PDF]
Background: The pre-emergence herbicides diclosulam and flumioxazin are used to weed control in soybean. We hypothesized management of the new emergence of weeds in the early development stages of the soybean could alter the periods of interference ...
Mauro A. Rizzardi +2 more
doaj +2 more sources
Field trials were conducted in the early cropping seasons of 2016 and 2017 at the Teaching and Research Farm of the Federal University of Agriculture Abeokuta (07° 20ʹN , 3° 23ʹE 159 m above sea level) in a derive savannah agro ecology region of South ...
Samuel O. Osunleti +2 more
doaj +1 more source
Pre-emergence herbicides for weed control in walnuts
Walnuts are California's leading deciduous tree crop. Walnut orchardists spend over one million dollars annually for weed control on an estimated 140,000 acres.
A Lange, B Day, L Jordan, R Russell
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Controlling watergrass in corn: With pre-emergence herbicides
Four years of testing have shown that chemicals incorporated in the soil as pre-emergence treatments give satisfactory control of watergrass and many broad-leaved weeds in corn growing in the organic soils of the Sacramento-San Joaquin Delta.
C Foy, T Lyons, S Carlson
doaj +1 more source
In the search of sustainable and environmentally friendly methods for weed control, there is increasing interest in essential oils (EOs) as an approach to reduce synthetic herbicide use.
Mercedes Verdeguer +4 more
doaj +1 more source
بررسی وضعیت همزیستی میکوریزایی چند گیاه غالب در بیابانهای استان سمنان [PDF]
چهل و یک نمونه از خاک و ریشه اطراف برخی گیاهان غالب مناطق کویری استان سمنان جمعآوری و بررسی شد. در 24% از گونههای بررسی شده هیچ اثری از همزیستی میکوریزایی دیده نشد ولی در 76% درصد از آنها آثار همزیستی میکوریزایی، چه به شکل حضور اندامکهای قارچی در ...
سیما زنگنه
doaj +1 more source
Pre-Emergence Rotting of Peas in South Australia [PDF]
Laboratory tests have shown that individual wrinkle-seeded pea seeds vary in their ability to continue vigorous growth after germination. After the radicle has broken through the testa, SOme produce normal seedlings, some fail to develop further, while others afe intermediate between these extremes and produce stunted seedlings. Thus some seeds capable
NT Flentje, HK Saksena
openaire +4 more sources
Herbicides are widely used to kill weeds and increase crop production all over the world. Nevertheless, some weeds show certain structural modifications in response to herbicide application that impart mostly partial or sometimes complete tolerance to ...
Sidra Riaz +9 more
doaj +1 more source
Chemical Control of Morning Glory Species in Sugarcane Harvested in the Dry and Semi-Wet Seasons1 [PDF]
The control of morning glory (Ipomoea spp. and Merremia aegyptia) was evaluated in five commercial sugarcane-production fields receiving applications of the herbicides sulfentrazone (0.9 kg ha-1), amicarbazone (1.4 kg ha-1), imazapic (0.147 kg ha-1), and
N.M. CORREIA
doaj +2 more sources
HELIOSEISMOLOGY OF PRE-EMERGING ACTIVE REGIONS. III. STATISTICAL ANALYSIS [PDF]
The subsurface properties of active regions prior to their appearance at the solar surface may shed light on the process of active region formation. Helioseismic holography has been applied to samples taken from two populations of regions on the Sun (pre-emergence and without emergence), each sample having over 100 members, that were selected to ...
Barnes, G. +3 more
openaire +3 more sources

