Download or read book Crop Weed Competition in Soybean Glycine Max L Mirrill Crop in Relation to Chemical and Mechanical Methods of Weed Control written by Surjit Singh Dahiya and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book To Study the Relative Effiicacy of Chemical and Mechanical Methods of Weed Control with and Without Nitrogen on Growth Yield and Quality of Soybean Glycine Max L Merrill Variety Clark 63 written by More B T. and published by . This book was released on 1973 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Control in Soybean Glycine Max L Merrill Through Herbicides in Comparison with Intercropping and Mechanical Methods written by SHEKARA B. G and published by . This book was released on 1991 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed control in crops written by V. S. Khuspe and published by . This book was released on 1982 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bibliography, with abstracts.
Download or read book Efficacy of Herbicides for Weed Management in Soybean Glycine Max L written by Sylvestre Habimana and published by LAP Lambert Academic Publishing. This book was released on 2014-02 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food Security used to be the prime concern up to 1960s and now emphasis is on sustainable crop production. The agronomic constraints of growing and handling of soybean could be minimized by appropriate mechanical aids for sowing, intercultivation, weed control, harvesting and threshing. Among the constraints, weed infestation in soybean is one of the major hurdles which limit its productivity level. Depending on the type of weeds, their intensity and time of crop weed competition reduces the yields to the extent of 20 to 50 per cent when weeds are grown with crop for long season. The traditional methods of weed control by hand weeding or mechanical means are now becoming costly, tedious, labor intensive and time consuming. Unavailability of sufficient labor at critical stage of crop growth for hand weeding.Under these circumstances, it is inevitable to adopt alternate measures which help to control weeds early in the season and also at critical periods of crop weed competition.The only choice for controlling weeds would be through herbicides at appropriate level.The Author is optimistic that the present book will be well received across soybean growers and researchers in the world
Download or read book Weed Management and Crop Growth Modeling in Soybean Glycine Max L Merrill written by Hossein and published by . This book was released on 2011 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Weed Management in Soybean Glycine Max L Merrill written by Rupa Ram Jakhar and published by LAP Lambert Academic Publishing. This book was released on 2015-07-02 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max L.Merril) is a major component of the diet of millions of people throughout the world. It is one of the nature's most efficient protein producers. It yields more usable protein per unit area than any other commonly cultivated crop, at least three times more than rice, wheat or maize. While most plant sources of protein are seriously deficient in one or more of nine essential amino acids, soybean is an exception. It has diversified food options in the preparation of full fat soy-flour, milk, paneer, curd, ice-cream, sprouted and roasted snacks, soy-fortified bakery, soy-protein concentrate, and dietary-fiber, citric acid, margarine etc. It plays an important role in solving problem of malnutrition as it contains about 20% oil and 40% high quality protein. Its protein is rich in valuable amino acid lycine (5%), in which, most of the cereals are deficient. Amongst the major constraints in its cultivation, weed infestation is the most important one. It is very sensitive to early weed competition. Weed infestation in soybean field may reduce yield by 19-33% depending upon the intensity, nature and duration of weed competition.
Download or read book Effect of Soybean Glycine Max L Merr Row Width and Plant Population of Weed Competition and Soybean Yield and Influence of Stem boring Insects on Common Lambsquarters Chenopodium Album L Control with Glyphosate written by Dana Brian Harder and published by . This book was released on 2006 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Indian Journal of Weed Science written by and published by . This book was released on 2004 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History of Soybean Plant Protection from Diseases Insects Nematodes and Weeds 15 BCE to 2019 written by William Shurtleff and published by Soyinfo Center. This book was released on 2019-04-27 with total page 1397 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Herbicides and Crop Weed Competition on Physiological Aspects in Soybean Glycine Max L written by BADIGER RAJASHWKAR G and published by . This book was released on 1995 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Cultural Weed Control Methods in Soybean Glycine Max to Improve Crop Competitiveness written by Tasha Valente and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Effects of cultural weed control methods in soybean were examined under moderate and high weed populations for their effect on crop canopy closure and canopy closure. The reference treatment was a slender soybean cultivar planted at a standard seeding rate (400,000 seeds/ha) with no pre-plant nitrogen added. Field studies were conducted in Elora, Ontario and Woodstock, Ontario in 2014 and 2015. Treatments included two levels of each: pre-plant nitrogen, seeding rate, competitive cultivar selection, and weed pressure. Weed emergence, above ground weed biomass, canopy light transmittance, and soybean yield were measured. Weeds continued to emerge until canopy closure regardless of treatment; there was also little difference in canopy closure between treatments. Nitrogen treatment alone (P=0.0214) and in combination with the bushy soybean cultivar (P=
Download or read book Integrated Weed Control in Soybean Glycine Max L Merrill written by KAMALA BAI S and published by . This book was released on 1993 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Roundup Ready and Conventional Soybean glycine Max L Weed Control Systems for Optimizing Yield and Economic Profitability written by Brittany Lee Gaban and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research was conducted in 2010, 2011 and 2012 at the East Tennessee Research and Education Center in Knoxville, TN, in order to compare differences in soybean yield among differing levels of weed control within Roundup Ready® [Glyphosate-resistant] (RR)and conventional soybean cultivars to gain a better understanding of the impact different intensities of weed control have on RR and conventional cropping systems. Results determined that after applying the weed control regimens, there was no significant difference (p Glyphosate resistant weeds introduce new challenges and create a more costly weed control regimen, especially when using a RR based soybean cultivation operation. Therefore, calculated economic returns of RR and conventional weed management technologies used in this study were contrasted to determine profitability of each system. In a glyphosate resistant-free environment, the conventional soybean cultivar had a net return of only 0.4% greater than that of the RR cultivar. The comparison of cultivar net return and yield indicates conventional soybean production is competitive to RR productions, however the tremendous use of RR technologies leaves conventional crops vulnerable to potential damage or death due to drift. If glyphosate resistant weeds are present in an environment, RR production and hand hoeing may be the best choice for weed control.
Download or read book Postemergence Weed Control in Soybean Glycine Max L Merr with Imazamox Imazethapyr Oxasulfuron and Cloransulam methyl written by Kelly Allan Nelson and published by . This book was released on 1997 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grass Control in Soybeans Glycine Max L Merr with Selective Postemergence Herbicides written by James Justin Kells and published by . This book was released on 1982 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphological Molecular and Physiological Mechanisms of Early Season Weed Competition in Soybean Glycine Max L Merr written by Andrew McKenzie-Gopsill and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of early emerging weeds alters light quality perceived by crop plants through reducing the red (670 nm) to far-red (730 nm) ratio of light (R/FR). This change in light quality has long-lasting effects on crop plants, which may lead to yield loss. The objective of this thesis was to investigate the morphological, molecular and physiological responses of soybean (Glycine max (L.) Merr.) to far-red-enriched (FR-E) light reflected from neighbouring weeds in a controlled environment, in order to gain insight into the mechanisms of yield loss. Based on the existing knowledge on the effect of FR-E light on photosystem stoichiometry, it was hypothesised that if soybean seedlings perceive FR-E light reflected from neighbouring weeds at early growth stages, then an initial oxidative stress response will trigger a cascade of down-stream morphological and physiological events that may potentially contribute to yield loss. Morphological analyses revealed rapid changes in the root/shoot ratio of soybean seedlings upon emergence in response to FR-E light. This was accompanied by rapid induction of reactive oxygen species (ROS) scavenging genes. Analyses of enzymatic and non-enzymatic scavengers of ROS demonstrated that a primary and fundamental impact of FR-E light on soybean unifoliate leaves was increased generation of singlet oxygen and its conversion to hydrogen peroxide via ascorbate. This led to reductions in activity of a thiol-modulated Calvin cycle enzyme and CO2 assimilation as well as altered carbon partitioning. Chemical inhibition of plastid terminal oxidase and mitochondrial alternative oxidase as well as measurements of malate/oxaloacetate shuttle enzyme activities demonstrated the involvement of alternative electron pathways in early responses of soybean seedlings to FR-E light. Furthermore, investigation of the impact of FR-E light on plastic responsiveness of soybean to subsequent drought stress under field conditions revealed that the frequency, type and severity of stress influenced the ability of a soybean to express plasticity. The findings of this research not only shed light on the mechanisms of resource independent crop-weed competition that may contribute to yield loss, but also provide an important foundation for studies aimed towards improving crop competitive ability and reducing the negative impact of weeds on yield.
