Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"double-cropping"”.
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Adaptability of Soybeans to Late-Planted Environments (Isolines, Gxe, Double Cropping)
… crop and only to a limited extent as a double crop. Development of cultivars specifically adapted to double cropping has been suggested as a means to expand double-crop acreage in this area. Before initiating a separate breeding program for the development of Midwestern double-crop …
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A comparison of determinate and indeterminate soybean lines for double cropping in Virginia
… crosses were evaluated under full-season and double cropping conditions to compare the performance of the two plant types under both cropping systems. The parents and selected lines were in the range of Maturity Groups IV and V. In 1980, the lines were planted 1 July in a replicated test at …
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Analysis of Double Cropping to Expand Sustainable Aviation Fuel Production in the United States
… This thesis analyzes the suitability of double cropping in the United States as a method to expand biomass for SAF production. The suitability for double cropping is quantified for 2020, 2035, 2050, and 2100, using temperature and rainfall data and regional projections. Twelve double crop …
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The impact of Brazil on global grain dynamics: A study on cross-market volatility spillovers
… time periods, before and after Brazil started double-cropping. Our results indicate no significant cointegration between corn and soybeans markets before Brazil started double-cropping and significant cointegration after, for both markets. Volatility spillovers dynamics also changes, from no …
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Effects of plastic mulch, row cover, and cultivar selection on growth of tomatoes (Lycopersicon esculerntum Mill.) in high tunnels
… characteristics, BHN 543 could fit into a double cropping system for growers wanting to replant their high tunnels with a fall crop. Full season yield of grade 1 and 2 fruit combined was significantly greater for Merced than any other cultivar. The heirloom tomato cultivar Brandywine …
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Post-harvest loss in tropical soybean systems: Brazilian managers' perceptions and mitigation strategies: two manuscripts
… and because a large part of the soybean area is double-cropped with maize, 38% in 2012/13 according to CONAB (2013). Double cropping or “safrinha” is a new production technology that portends huge productivity increases for low-latitude farms, has interesting implications for PHL. It is commonly …
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Sequential cropping of vegetables using plastic mulch, trickle irrigation, and soil fumigation
Successive cropping of two vegetable crops grown on the same site in one season utilizing trickle irrigation, plastic mulch, and soil fumigation was performed in two separate experiments. In 1980, cabbage (Brassicae olericea L. var capitata cv. Market Prize) was followed by tomato (Lycopersicon …
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Relay- and double-crop production systems for wheat
… to provide organic matter to soils, diversify cropping systems, and provide economic benefits if the correct cropping systems are utilized. Relay-intercrop production involves overlapping growth cycles of two or more crops. This production system is common with legumes seeded into small grains; …
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Investigation of Biotic and Abiotic Factors Affecting Double-Cropped Corn (Zea mays L.) Production in Virginia
Double-cropping of corn (Zea mays L.) for grain following the harvest of a small grain crop has been under evaluation in Virginia as an alternative cropping strategy (Brann and Pitman, 1997). To assess the potential constraints on late planted corn imposed by insects and diseases, double-cropped …
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Evaluation of integrated weed management techniques and their nuances in Virginia crop production
… is limited on the effectiveness of HWSC in US cropping systems. For HWSC to be effective it is important to know when and how many seed are shed from a weed species in relation to crop harvest. Research was conducted to quantify when weed seed are shattered from 6 economically important weed …
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Double-Crop Soybean Vegetative Growth, Seed Yield, and Yield Component Response to Agronomic Inputs in the Mid-Atlantic, USA
… and profitability are the primary reasons for double-cropping soybean with small grain in the Mid-Atlantic, USA. Reduced double-crop yield can be attributed to: delayed planting that results in a shortened growing season and less vegetative growth; later-maturing cultivars that terminate main …
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Soybean expansion in Brazil: A quantitative assessment of past technological and environmental changes and implications for future climate change
… planting dates, making feasible the double cropping systems common today in central Brazil. Soybeans moved to much wetter regions, as total change in average excess precipitation (P-ETC) found was 2.33 mm day -1 on the historical period (1974-2012). Average temperatures rose at a rate …
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Full-Season and Double-Crop Soybean Response to Potassium Fertilizer
… and piedmont soils of Virginia, especially in double-crop systems. Nineteen full-season and 14 double-crop soybean experiments were conducted in 2013 and 2014 in Virginia and northeastern North Carolina to determine full-season and double-crop soybean (with wheat straw remaining or removed) …
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Determination and Manipulation of Leaf Area Index to Facilitate Site-Specific Management of Double-Crop Soybean in the Mid-Atlantic, U.S.A.
Double cropping soybean after small grain harvest does not always allow sufficient canopy growth to maximize photosynthesis and seed yield. This is due to a shorter growing season and moisture deficits common to the Mid-Atlantic USA. Leaf area index (LAI) is the ratio of unit leaf area of a crop to …
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DEFATTED SEED CAKES RECOVERY TO INCREASE BIOFUEL PRODUCTION SUSTAINABILITY FROM SECOND-GENERATION OIL-CROPS
… ), was comparable to maize silage. Combining double cropping, biogas production, digestate fertilisation, and nitrification inhibitors resulted in an 81% GHG reduction. The second step focused on the valorisation of DSCs from C. sativa, Brassica carinata, and Brassica juncea as animal feed. An …
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Assessing the impact of cover crops on soil health in a long-term no-till rotation: a case study from Northeast Kansas
… wheat and corn included chemical fallow (CF), double-crop soybean (DSB), and four cover crop treatments. To meet the first objective of this study, soil profile samples were collected in 2021 and 2022 after corn harvest to determine how different fallow management preceding corn and different N …