Download or read book On farm and Small Plot Studies of the Growth and Performance of Cover Crops Interseeded Into Corn written by Sue Ellen Johnson and published by . This book was released on 1995 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interseeding Cover Crops in Corn written by Aaron Patrick Brooker and published by . This book was released on 2019 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: Farmers could enhance crop diversity in their farming systems by interseeding cover crops in corn in late May and June in corn rotations in the Upper Midwest. Recommendations must be developed for cover crop species, seeding rates, and interseeding timings that optimize cover crop growth and enhance corn production. Weeds must be controlled, and cover crops must establish in this system. Cover crops influence soil health in long term studies; however, the influence of interseeded cover crops on soil enzymes, soil structure, and nutrient cycling has not been reported. In Michigan, two experiments were conducted from 2015-2017 and one experiment from 2017-2019. In the first experiment, annual ryegrass, crimson clover, oilseed radish and a mixture of the three species were broadcast interseeded at each of the V1 through V7 corn stages at a single seeding rate. Cover crop and weed density and biomass were measured during the growing season, at the time of corn harvest, and the following spring. Soil samples were taken in the spring in the year following interseeding and analyzed for inorganic N, extracellular enzyme activity, and aggregate stability. Corn was planted as an indicator crop and sampled for C and N content. In the second experiment, preemergence (PRE) and postemergence (POST) herbicides were applied, and cover crops interseeded at the V3 and V6 corn stages. Cover crops were evaluated in October for injury and stand loss. A greenhouse trial was also included to evaluate cover crop response to herbicides. In the third experiment, the same three cover crop species and a mixture of annual ryegrass and crimson clover were interseeded at three seeding rates in V3 and V6 corn. Establishment, biomass, and corn grain yield were collected using the same methods as previously described. Eight on-farm locations were interseeded with the same cover crop species at the 1X rate at the V3 and V6 corn stages. All plots were flown with a fixed-wing aircraft to measure canopy temperature. Small-plots were flown with UAV to acquire multispectral imagery to determine NDVI and NDRE. In years with normal or below normal precipitation, annual ryegrass and oilseed radish produced the highest biomass. Establishment improved when seeding on tilled soil compared with no-till soil. All cover crop species established, regardless of tillage, with above normal rainfall. Both annual ryegrass and crimson clover established when interseeded as a mixture at the seeding rates used. Increasing seeding rates usually increased biomass production. Cover crops could be interseeded at any time from V1-V7 corn if weeds were controlled. No cover crop species was competitive with summer annual weeds; annual ryegrass was the only species that overwintered and suppressed winter annual weeds. There were PRE and POST options for weed control with all cover crop species, but farmers must be mindful of herbicide and cover crop combinations. Delaying interseeding until V6 may reduce injury from some PRE herbicides. In the year of interseeding, cover crops did not reduce corn grain yield; therefore, remote imagery was not able to detect changes in corn health. Remote imagery detected cover crop establishment in the V3 interseedings prior to corn canopy closure; remote imagery did not detect less thermal stress where cover crops were interseeded. Annual ryegrass plots had reduced spring inorganic N content, and this sometimes translated to reduced N in the indicator corn crop. Success of broadcast interseeded cover crops is highly depended on adequate precipitation; this practice would be especially successful where summer rainfall is consistent or in irrigated systems. Benefits of cover crops are likely to be realized over multiple years of interseeding; farmers must balance goals of cover cropping with costs of seeding when selecting species, seeding rates, and weed control options.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1996 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Cover Crops Profitably 3rd Ed written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Download or read book Interseeded Cover Crops in Seed Corn Production written by Brent Edward Tharp and published by . This book was released on 1997 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Terms of Service written by Connor Zachary Youngerman and published by . This book was released on 2017 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winter cover crops provide a suite of benefits but their use is limited because there is often not enough time after harvesting crops in the fall to establish cover crops before winter. Problems with establishment may be overcome by interseeding, where cover crops are seeded between rows of cash crops prior to harvest. Interseeded cover crops can provide greater ecosystem services than cover crops established after harvest, including erosion control and weed suppression. In addition to these services, interseeded cover crops might also provide habitat for invertebrate seed predators such as carabid beetles and crickets, which feed on weed seeds. We established a field experiment to investigate how cash crop planting density affects interseeded cover crop performance during the transition to certified organic production. We measured corn density, light transmission through the corn canopy, cover crop and weed biomass, and corn grain yield. We analyzed the relationship between these factors with regression, mixed models, path analysis, and partial correlation. The effect of corn density on interseeded cover crop biomass was significant when quantified both directly and indirectly as mediated by light transmission and weed biomass. At the October sample date, weed biomass was 31% lower in plots with interseeded cover crops than plots without, and corn grain yield was not different between plots with interseeded cover crops and plots without. We also conducted a laboratory experiment to explore the potential for cover crop seeds to be eaten by weed seed predators. Using four common invertebrate weed seed predators and a series of No Choice and Choice feeding assays, we presented seeds of ten cover crop species and three weed species to individual carabid beetles and crickets. We analyzed No Choice preference with logistic regression and Choice with Vanderploeg and Scavia’s electivity index and mixed models. We found that all four invertebrate seed predators consumed cover crop seeds and that preference varied by plant species and insect species. Overall results show that cover crop interseeding can be used to overcome one of the primary barriers to cover crop adoption and provide ecosystem services, but that cover crop seeds are susceptible to seed predation and thus cover crop species selection and seeding method are important to consider.
Download or read book Cover crops for Young Orchards written by Rollins Adams Emerson and published by . This book was released on 1906 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1995 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Time and Method of Seeding and Corn Row Width on the Establishment of Various Species Interseeded as a Cover Crop in Corn written by William A. Hayes and published by . This book was released on 1958 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corn Zea Mays L and Cover Crop Response to Corn Density in an Interseeding System and Subsequent Dry Bean Phaseolus Vulgaris L Yield written by Dieudonné Nkundizana Baributsa and published by . This book was released on 2006 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interseeding Cover Crops in Row cultivated Corn written by Daniel H. Smith and published by . This book was released on 2019 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cover Crop Introduction Into Corn Zea Mays L Soybean Glycine Max L Cropping Systems written by Angela M. Bastidas and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fall-seeded cover crops are limited by the short growing season remaining between harvest and planting the succeeding crop. To address this challenge, we considered two alternative systems for introducing cover crops into corn (Zea mays L.)- soybean (Glycine max L.) cropping systems. The first alternative was to interseed the cover crops species with corn at specific developmental stages. We evaluated the effect on corn, cover crop biomass, and the subsequent soybean crop. No detrimental effects on corn were found when cover crops were interseeded at or after corn canopy closure due to the limited cover crop biomass produced during the growing season. However, corn was negatively affected with cover crops interseed at corn planting. Cover crops interseeded at canopy closure did not establish due to corn canopy shading. Cover crops interseeded at or after R5 (dent) produced greater biomass the following spring than in the fall, and cover crops interseeded at R5 and R6 (physiological maturity) produced greater biomass than cover crops interseeded at corn harvest. This indicated that the interseeding by broadcasting cover crops can be successful for improving biomass production. The second alternative was to modify corn management practices such as planting date, plant population, and comparative corn relative maturity (CRM) to allow earlier cover crop seeding dates. We attempted to understand the impact on corn yield, cover crop biomass production, and the subsequent soybean crop. Early- and early-to-medium-maturity hybrids allowed corn harvest about one month earlier and medium-maturity hybrids about 15 d earlier than late-maturity hybrids. No differences in corn yield were observed between the medium- and late-maturity hybrids planted at the earlier planting date, with a 107 CRM hybrid planted early having the highest yield of 16.0 Mg ha-1. The greatest cover crop biomass production occurred with the earliest cover crop planting date. Cover crop biomass increased with air temperature, which was measured with growing degree days (GDDC). This indicates that changes in planting date and corn CRM hybrids are important to increase the potential for use of cover crops. The subsequent soybean yield was not affected by cover crops in either alternative.
Download or read book Agronomy Abstracts written by and published by . This book was released on 1988 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).
Download or read book Soil Health and Intensification of Agroecosystems written by Mahdi M. Al-Kaisi and published by Academic Press. This book was released on 2017-03-15 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Health and Intensification of Agroecosystems examines the climate, environmental, and human effects on agroecosystems and how the existing paradigms must be revised in order to establish sustainable production. The increased demand for food and fuel exerts tremendous stress on all aspects of natural resources and the environment to satisfy an ever increasing world population, which includes the use of agriculture products for energy and other uses in addition to human and animal food. The book presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate. The book explores the introduction of sustainable agroecosystems that promote biodiversity, sustain soil health, and enhance food production as ways to help mitigate some of these adverse effects. New agroecosystems will help define a resilient system that can potentially absorb some of the extreme shifts in climate. Changing the existing cropping system paradigm to utilize natural system attributes by promoting biodiversity within production agricultural systems, such as the integration of polycultures, will also enhance ecological resiliency and will likely increase carbon sequestration. - Focuses on the intensification and integration of agroecosystem and soil resiliency by presenting suggested modifications of the current cropping system paradigm - Examines climate, environment, and human effects on agroecosystems - Explores in depth the wide range of intercalated soil and plant interactions as they influence soil sustainability and, in particular, soil quality - Presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate
Download or read book Nitrogen Fertilizer Cover Crop Responses Seeded After Wheat and Effect on Grain Corn Yield in the Short Term written by Matthew Stewart and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops seeded after wheat (Triticum aestivum L.) provide agronomic, environmental and soil health services. Long-term cover crop trials were established at Ridgetown and Elora, ON, in 2017. But in the short-tern, cover crop populations, C:N ratios, N uptake and biomass in November, and subsequent corn (Zea mays L.) grain yields, were examined among combinations of five cover crop treatments, two nitrogen treatments before cover crop seeding, and two tillage systems in 2017 and 2018. In general, mixtures of cover crop species did not produce more biomass than monocultures at 3 of 4 site-years. N fertilizer applied after wheat harvest increased biomass of non-legumes and tended to reduce C:N ratios in November. Cover crops did not increase grain corn yields when adequately fertilized with N, but where N was limited, yields were improved after red clover (Trifolium pratense L.) and decreased after oat (Avena sativa L.). Cover crop performance can be maximized in the short-term, but longer-term studies are needed.
Download or read book Environmental Impact of Agro Food Industry and Food Consumption written by Charis M. Galanakis and published by Academic Press. This book was released on 2020-11-18 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Impact of Agro-Food Industry and Food Consumption covers trends associated with the impact of food production on the environment using lifecycle analysis and the standard methods used to estimate the food industry's environmental impact. The book discusses city-scale actions to estimate the environmental impact of food systems, including the meat chain, feeding crops to farmed fish, the confectionary industry, agriculture, tea processing, cheese production, the dairy industry, cold chain, and ice cream production. Food waste and consumption in hospitality and global diets round out these interesting discussions. Written for food scientists, technologists, engineers, chemists, governmental regulatory bodies, environmentalists, environmental technologists, environmental engineers, researchers, academics and professionals working in the food industry, this book is an essential resource on sustainability in the food industry. - Addresses all levels of the food chain - Provides solutions for the food industry to estimate and reduce environmental impact - Assists members of the food industry in optimizing their current performance and reducing their environmental footprint
Download or read book A Study of Winter Grown Cover Crops Their Place in Soil Management and Their Effects on Sweet Corn Yields written by William Arthur Dickinson and published by . This book was released on 1956 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
