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 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 Evaluation of Herbicides for Soybeans on Central Florida Organic Soils Classic Reprint written by Walter T. Scudder and published by Forgotten Books. This book was released on 2018-01-12 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Evaluation of Herbicides for Soybeans on Central Florida Organic Soils The problem of controlling weeds has been a major factor prohibiting large-scale production Of soybeans on the sawgrass peat soils Of Central Florida. With adequate weed control, good yields can be produced on these soils when planted after early sweet corn or other spring vegetable crops. Soybeans are grown during the summer, at aptime when the land is normally fallowed or left to weeds. They show promise Of becoming an important self-paying summer cover crop When used as part of the veg etable rotation. A weed-free crop Of soybeans Offers many advantages as a summer cover. Fallowing, by plowing and harrowing repeatedly throughout this Off-season, controls the weeds, but is expensive and tends to increase subsidence - a serious problem on peat soils. Although a cover crop Of weeds lessens subsidence and conserves soil nutrients remaining from the fertilized truck crops, millions Of wee-d seed are borne to hamper production for years to come. A well-cared-for crop Of soybeans, on the other hand, not only conserves residual fertility but also adds nitrogen to the soil. In addition, a good bean yield will give a cash return much above the cost of production. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Field Greenhouse and Laboratory Evaluation of the Efficacy and Selectivity of the Herbicide Thifensulfuron for Weed Control in Soybeans Glycine Max written by Lewis Meriwether Walker and published by . This book was released on 1991 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Soybean glycine Max Cultivar as a Factor of Weed Control in No till Double cropped Production Following Wheat triticum Aestivum written by Drew Trussell Newcomer and published by . This book was released on 1986 with total page 28 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 Effects of Tillage and Weed Control on Soybean Glycine Max L Merr Production written by Charles Lee Webber and published by . This book was released on 1986 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Evaluation of Foliar Fertilizer Or Cytokinin Mixtures in Combination with Common Postemergence Soybean Herbicides written by Huntington Tyler Hydrick and published by . This book was released on 2017 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an effort to reduce application costs and to integrate plant health management strategies in soybean, growers may combine POST herbicides with foliar fertilizers or cytokinin mixtures. Field experiments were conducted at the Delta Research and Extension Center in Stoneville, MS in 2015 and 2016 to evaluate soybean [Glycine max (L.) Merr.] injury, weed control, and agronomic performance when combining blended or single-nutrient foliar fertilizers with POST herbicide applications. Field experiments were also conducted at the Delta Research and Extension Center in Stoneville, MS in 2015 and 2016 to evaluate the influence of cytokinin mixtures on soybean injury and weed control when combined with common POST soybean herbicides.

Download or read book Soybean Glycine Max Weed Control Systems and the Effects of Herbicides and Depth of Planting on Soybean Injury written by Robert Brent Westerman and published by . This book was released on 1988 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Response and Physiology of Grafted Glyphosate resistant and Conventional Soybean glycine Max to Glyphosate and Efficacy of Bicyclopyrone in Vegetables written by Yin Chen and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques to improve specialty crop herbicide tolerance, and identifying new methods of weed control are needed to help secure the future of vegetable production. My dissertation research addressed both concerns. First, I used soybean as model plant to investigate response and physiology of grafted glyphosate-resistant (RR) and conventional (CN) soybean plants to glyphosate. Glyphosate (0.28, 0.84 and 1.68 kg ae ha-1) was applied to CN/CN (scion/rootstock), CN/RR, RR/CN (only in growth stage experiment) and RR/RR grafted plants that had been generated using CN and RR genotypes. Variables tested included three growth stages (3, 6 and 10-leaf stages), nine CN/RR genotype combinations, and two growing environments (day/night thermoperiods of 28/22 C and 24/18 C). Small CN/RR plants (65%) and medium-sized plants (50%) were injured more than large plants (40%) 34 days with 0.84 kg ae ha-1 of glyphosate. Genotype of the scion had a greater effect on glyphosate tolerance compared to rootstock. Fewer leaves produced on CN/RR construct 5388/9392 under the warmer day/night temperatures following treatment with glyphosate. Seventy-two hours after treatment (HAT), 35% less shikimate was found in CN/RR compared to CN/CN plants. No cp4-epsps mRNA was detected in leaves of CN/RR plants, but a very small amount of CP4-EPSPS protein (=0.004% of that in RR leaf) was detected in the CN/RR leaves. More foliar-applied 14C-glyphosate and derivative was translocated to the root system of CN/RR compared to CN/CN. These data indicate that translocation of glyphosate from the CN scion to the RR rootstock is a major contributor to the partial tolerance to glyphosate observed in CN/RR transgrafted soybeans. Second, to aid in development of new weed control methods for vegetables, I assessed the response of several vegetable crops as well as three important weed species to the new herbicide bicyclopyrone. Onion, carrot, radish and dill were relatively tolerant of pre-emergence (PRE) and post-directed (POSTDIR) bicyclopyrone at 37.5 and 50 g ai ha-1. In contrast, bicyclopyrone post-emergence (POST) induced severe injury. Greenhouse experiments further examined the effect of soil type and variety on the response of onion, carrot and leek to 0, 12.5, 25, 50 and 100 g ha-1 of bicyclopyrone applied PRE. All test crops were uninjured by bicyclopyrone PRE when grown in muck soil, whereas all crops grown in sand + Pro-Mix BXTM blend were injured. Control of hairy galinsoga (Galinsoga quadriradiata Cav.), common purslane (Portulaca oleracea L.) and prostrate pigweed (Amaranthus blitoides S. Wats.) treated with bicyclopyrone POST or PRE was assessed in different soils and with each weed at three stages of growth. POST bicyclopyrone at 37.5 and 50 g ha-1 controlled hairy galinsoga and small common purslane plants (¿ 80% injury).. Hairy galinsoga was well controlled (80% injury) when growing in a Wooster silt loam and in a Pro-Mix BXTM 2:3 v/v blend. Common purslane was injured by PRE application to the muck soil and was well controlled in the Wooster silt loam and Pro-Mix BXTM blend. Bicyclopyrone POST and PRE did not control prostrate pigweed in either soil type or at any growth stage.

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 Soybean written by Hany El-Shemy and published by BoD – Books on Demand. This book was released on 2011-11-02 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide, soybean seed proteins represent a major source of amino acids for human and animal nutrition. Soybean seeds are an important and economical source of protein in the diet of many developed and developing countries. Soy is a complete protein and soyfoods are rich in vitamins and minerals.Soybean protein provides all the essential amino acids in the amounts needed for human health. Recent research suggests that soy may also lower risk of prostate, colon and breast cancers as well as osteoporosis and other bone health problems and alleviate hot flashes associated with menopause. This volume is expected to be useful for student, researchers and public who are interested in soybean.

Download or read book Weed Crop Competition written by Robert L. Zimdahl and published by John Wiley & Sons. This book was released on 2007-11-19 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the past 20 years, the first edition of this text has been widely cited as authoritative academic reference. The latest edition continues the tradition set by the original book, and covers weed science research that has been published since 1980. This book aims to reduce the instance of research duplication—saving scientists and supporting institutions time and money. Not only does the second edition of Weed Crop Competition review, summarize, and combine current research; it critiques the research as well. This text has the potential to accelerate advancements in weed crop competition, which remains an important factor that affects crop yields. Scientists in foreign countries where access to literature is often limited or nonexistent, will find the information in this text invaluable. Weed scientists, crop scientists, plant ecologists, sustainable agriculturists, and organic agriculturists will be well-pleased with this long overdue and much needed new editionWeed Crop Competition provides a unique reference that reviews, summarises and synthesizes the literature published concerning research on this topic. The first edition has been one of the most frequently cited sources in weed science for the past 20 years. The second edition covers the significant body of literature that has been published since 1980. Originally intended to survey existing research, the intent of the book is to reduce the instance of research duplication, thus saving scientists and their institutions time and money, and expediting advancements in weed crop competition, an important factor affecting crop yields. Scientists in foreign countries where access to the literature is often limited or non-existent, find the information an invaluable resource. This long overdue and much needed new edition rejuvenates the tradition set by the original book.

Download or read book Improving Weed Management and Crop Productivity in Maize Systems in Zimbabwe written by Arnold Bray Mashingaidze and published by . This book was released on 2004 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Span lang=EN-GB style='mso-ansi-language:EN-GB'It was concluded that cultural weed management techniques that enhance radiation capture by the crop were effective in suppressing weed growth and seed production and increasing crop yields and should be incorporated into smallholder farmer's production practices in a systematic manner as part of Integrated Weed Management and cropping system design.

Download or read book Non Chemical Weed Control written by Khawar Jabran and published by Academic Press. This book was released on 2018-01-03 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-Chemical Weed Control is the first book to present an overview of plant crop protection against non-food plants using non-chemical means. Plants growing wild—particularly unwanted plants found in cultivated ground to the exclusion of the desired crop—have been treated with herbicides and chemical treatments in the past. As concern over environmental, food and consumer safety increases, research has turned to alternatives, including the use of cover crops, thermal treatments and biotechnology to reduce and eliminate unwanted plants. This book provides insight into existing and emerging alternative crop protection methods and includes lessons learned from past methodologies. As crop production resources decline while consumer concerns over safety increase, the effective control of weeds is imperative to insure the maximum possible levels of soil, sunlight and nutrients reach the crop plants. Allows reader to identify the most appropriate solution based on their individual use or case Provides researchers, students and growers with current concepts regarding the use of modern, environment-friendly weed control techniques Presents methods of weed management—an important part of integrated weed management in the future Exploits the knowledge gained from past sustainable weed management efforts