Evaluation Of Jules-Crop Performance Against Site Observations Of
Irrigated Maize From Mead, Nebraska,
2017
Met Office Hadley Centre
Evaluation Of Jules-Crop Performance Against Site Observations Of Irrigated Maize From Mead, Nebraska, Karina Williams, Jemma Gornall, Anna Harper, Andy Wiltshire, Debbie Hemming, Tristan Quaife, Tim Arkebauer, David Scoby
Department of Agronomy and Horticulture: Faculty Publications
The JULES-crop model (Osborne et al., 2015) is a parametrisation of crops within the Joint UK Land Environment Simulator (JULES), which aims to simulate both the impact of weather and climate on crop productivity and the impact of croplands on weather and climate. In this evaluation paper, observations of maize at three FLUXNET sites in Nebraska (US-Ne1, US-Ne2 and US-Ne3) are used to test model assumptions and make appropriate input parameter choices. JULES runs are performed for the irrigated sites (US-Ne1 and US-Ne2) both with the crop model switched off (prescribing leaf area index (LAI) and canopy height) and with …
Science In The Supply Chain: Collaboration
Opportunities For Advancing Sustainable
Agriculture In The United States,
2017
Field to Market: The Alliance for Sustainable Agriculture
Science In The Supply Chain: Collaboration Opportunities For Advancing Sustainable Agriculture In The United States, Allison M. Thomson, Stewart Ramsey, Ed Barnes, Bruno Basso, Marlen Eve, Sasha Gennet, Patricio Grassini, Brandon Kliethermes, Marty Matlock, Eileen Mcclellen, Ed Spevak, Clifford S. Snyder, Mark D. Tomer, Chris Van Kessel, Tristram West, Grant Wick
Department of Agronomy and Horticulture: Faculty Publications
Consumers and corporations are increasingly interested in understanding the sustainability of agricultural supply chains and reducing the environmental impacts of food, fiber, feed, and fuel production. This emerging need to quantify environmental impacts from agricultural production creates an opportunity for collaboration with the scientific community. Without such collaboration, sustainability efforts risk failure by adopting unrealistic goals or misguided approaches. This commentary explores the role of science in Field to Market, a nonprofit organization developing a sustainability program for US commodity crops, and highlights opportunities to address emerging science challenges. We evaluate changes over the past 35 years in key environmental …
Genetic Characterization Of The Soybean Nested
Association Mapping Population,
2017
USDA, Agricultural Research Service
Genetic Characterization Of The Soybean Nested Association Mapping Population, Qijian Song, Long Yan, Charles Quigley, Brandon D. Jordan, Edward Fickus, Steve Schroeder, Bao-Hua Song, Yong-Qiang Charles An, David Hyten, Randall L. Nelson, Katy Rainey, William D. Beavis, Jim Specht, Brian Diers, Perry Cregan
Department of Agronomy and Horticulture: Faculty Publications
A set of nested association mapping (NAM) families was developed by crossing 40 diverse soybean [Glycine max (L.) Merr.] genotypes to the common cultivar. The 41 parents were deeply sequenced for SNP discovery. Based on the polymorphism of the single-nucleotide polymorphisms (SNPs) and other selection criteria, a set of SNPs was selected to be included in the SoyNAM6K BeadChip for genotyping the parents and 5600 RILs from the 40 families. Analysis of the SNP profiles of the RILs showed a low average recombination rate. We constructed genetic linkage maps for each family and a composite linkage map based on …
Editorial: Genomic Approaches For
Improvement Of Understudied
Grasses,
2017
University of Nebraska-Lincoln
Editorial: Genomic Approaches For Improvement Of Understudied Grasses, Keenan Amundsen, Gautam Sarath, Teresa Donze-Reiner
Department of Agronomy and Horticulture: Faculty Publications
Grasses are diverse, spanning native prairies to high-yielding grain cropping systems. They are valued for their beauty and useful for soil stabilization, pollution mitigation, biofuel production, nutritional value, and forage quality; grasses encompass the most important grain crops in the world. There are thousands of distinct grass species and many have promiscuous hybridization patterns, blurring species boundaries. Resources for advancing the science and knowledgebase of individual grass species or their unique characteristics varies, often proportional to their perceived value to society. For many grasses, limited genetic information hinders research progress. Presented in this research topic is a brief snapshot of …
Expression Of The Maize Dof1
Transcription Factor In Wheat And
Sorghum,
2017
University of Nebraska-Lincoln
Expression Of The Maize Dof1 Transcription Factor In Wheat And Sorghum, Pamela A. Pena, Truyen Quach, Shirley Sato, Zhengxiang Ge, Natalya Nersesian, Taity Changa, Ismail M. Dweikat, Madhavan Soundararajan, Tom E. Clemente
Department of Agronomy and Horticulture: Faculty Publications
Nitrogen is essential for plant growth and development. Improving the ability of plants to acquire and assimilate nitrogen more efficiently is a key agronomic parameter that will augment sustainability in agriculture. A transcription factor approach was pursued to address improvement of nitrogen use efficiency in two major commodity crops. To this end, the Zea mays Dof1 (ZmDof1) transcription factor was expressed in both wheat (Triticum aestivum) and sorghum (Sorghum bicolor) either constitutively, UBI4 promoter from sugarcane, or in a tissue specific fashion via the maize rbcS1 promoter. The primary transcription activation target of ZmDof1 …
High-Throughput Profiling And Analysis Of Plant Responses
Over Time To Abiotic Stress,
2017
Donald Danforth Plant Science Center, Saint Louis
High-Throughput Profiling And Analysis Of Plant Responses Over Time To Abiotic Stress, Kira M. Veley, Jeffrey C. Berry, Sarah J. Fentress, Daniel P. Schachtman, Ivan Baxter, Rebecca Bart
Department of Agronomy and Horticulture: Faculty Publications
Sorghum (Sorghum bicolor (L.) Moench) is a rapidly growing, high-biomass crop prized for abiotic stress tolerance. However, measuring genotype-by-environment (G x E) interactions remains a progress bottleneck. We subjected a panel of 30 genetically diverse sorghum genotypes to a spectrum of nitrogen deprivation and measured responses using high-throughput phenotyping technology followed by ionomic profiling. Responses were quantified using shape (16 measurable outputs), color (hue and intensity), and ionome (18 elements). We measured the speed at which specific genotypes respond to environmental conditions, in terms of both biomass and color changes, and identified individual genotypes that perform most favorably. With this …
Influence Of Tillage On Common Ragweed (Ambrosia Artemisiifolia) Emergence Pattern In Nebraska,
2017
University of Nebraska-Lincoln
Influence Of Tillage On Common Ragweed (Ambrosia Artemisiifolia) Emergence Pattern In Nebraska, Ethann R. Barnes, Rodrigo Werle, Lowell Sandell, John L. Lindquist, Stevan Z. Knezevic, Peter H. Sikkema, Amit J. Jhala
Department of Agronomy and Horticulture: Faculty Publications
Spring tillage is a component of an integrated weed management strategy for control of early emerging glyphosate-resistant weeds such as common ragweed; however, the effect of tillage on common ragweed emergence pattern is unknown. The objectives of this study were to evaluate whether spring tillage during emergence would influence the emergence pattern or stimulate additional emergence of common ragweed and to characterize common ragweed emergence in southeast Nebraska. A field experiment was conducted for three years (2014 to 2016) in Gage County, Nebraska in a field naturally infested with glyphosate-resistant common ragweed. Treatments consisted of a no-tillage control and three …
Evaluating Soil Physical And Chemical Properties Following Addition Of Non-Composted Spent Coffee And Tea For Athletic Fields,
2017
University of Kentucky
Evaluating Soil Physical And Chemical Properties Following Addition Of Non-Composted Spent Coffee And Tea For Athletic Fields, Shuang Zhou
Theses and Dissertations--Plant and Soil Sciences
Physical and chemical properties of non-composted spent coffee (CF) and tea (T) suggest they may have applications as soil amendments for improving poor soils. Studies were conducted to determine 1) the effect of amendments on grass growth and soil properties, 2) the effect of incorporation versus surface application of amendments on soil properties, and 3) the effect of amendment application frequency on grass growth and soil properties. In the first study, amendments were mixed with sand and planted to bermudagrass. Treatments included CF, T, and peat moss (PM) mixed with sand, and 100% sand as a control. In the second …
Effects Of Fertilizer And Shade Management On Nitrogen Mineralization, Nitrifying Microbial Abundance And Nitrogen-Fixing Capacity Of Erythrina Poeppigiana In Coffee (Coffea Arabica) Agroforestry Systems In Costa Rica,
2017
Georgia Southern University
Effects Of Fertilizer And Shade Management On Nitrogen Mineralization, Nitrifying Microbial Abundance And Nitrogen-Fixing Capacity Of Erythrina Poeppigiana In Coffee (Coffea Arabica) Agroforestry Systems In Costa Rica, Stuart E. Barker Iii
College of Graduate Studies: Theses & Dissertations
Worldwide chemical fertilizer use has increased by four times during the last 50 years. Conventional agricultural systems have a high nitrifying nature, resulting in a loss of nearly 70% of overall nitrogen (N) fertilizer inputs, an estimated economic loss of $81 billion. Over application of fertilizer is rampant in tropical developing nations in Central America, where coffee is major crop. Agroforestry offers ecologically sustainable land management strategies that promote the provision of ecosystem services such as, protection of biodiversity, climate change mitigation, and water and soil regulation. When legume trees are incorporated as the shade tree in coffee production, direct …
Frost: Frequently Asked Questions,
2017
Department of Primary Industries and Regional Development, Western Australia
Frost: Frequently Asked Questions, Department Of Primary Industries And Regional Development, Western Australia
Grain and other field crops published reports
Frequently asked questions regarding frost from the National Frost Initiative.
Effect Of The National Accelerated Agricultural Inputs Access Subsidy Program On Fertilizer Usage And Food Production In Kakamega County, Western Kenya,
2017
Walden University
Effect Of The National Accelerated Agricultural Inputs Access Subsidy Program On Fertilizer Usage And Food Production In Kakamega County, Western Kenya, Abednego Kiwia Mavuthu
Walden Dissertations and Doctoral Studies
Despite 25 years of concerted efforts by African governments to adopt consistent policies for increasing food production, hunger and poverty are still prevalent in the continent. Using Bernanke's conceptualization of the credit channel theory of monetary policy, the purpose of this correlational study was to investigate whether a subsidy program, the National Accelerated Agricultural Inputs Access Program (NAAIAP), affected the rates of fertilizer usage and food production in Kakamega County, Western Kenya. Purposive stratified sampling was used to select 114 participants consisting of 72 farmers in each of the 2 groups: NAAIAP beneficiaries and nonbeneficiaries. Participants completed a survey on …
Vegetable And Fruit Intake And Fracture-Related Hospitalisations: A Prospective Study Of Older Women,
2017
Edith Cowan University
Vegetable And Fruit Intake And Fracture-Related Hospitalisations: A Prospective Study Of Older Women, Lauren C. Blekkenhorst, Jonathan M. Hodgson, Joshua R. Lewis, Amanda Devine, Richard J. Woodman, Wai H. Lim, Germaine Wong, Kun Zhu, Catherine P. Bondonno, Natalie C. Ward, Richard L. Prince
Research outputs 2014 to 2021
The importance of vegetable and fruit intakes for the prevention of fracture in older women is not well understood. Few studies have explored vegetable and fruit intakes separately, or the associations of specific types of vegetables and fruits with fracture hospitalisations. The objective of this study was to examine the associations of vegetable and fruit intakes, separately, and specific types of vegetables and fruits with fracture-related hospitalisations in a prospective cohort of women aged ≥70 years. Vegetable and fruit intakes were assessed at baseline (1998) in 1468 women using a food frequency questionnaire. The incidence of fracture-related hospitalisations over 14.5 …
Impact Of Push-Pull Technology On The Nutritional Status Of Farmers' Children In Western Kenya,
2017
International Centre of Insect Physiology and Ecology Nairobi
Impact Of Push-Pull Technology On The Nutritional Status Of Farmers' Children In Western Kenya, Nicholas O. Ogot, J. O. Pittchar, C. A.O. Midega, Z. R. Khan
All Peer-Reviewed Publications
This study examined the impact of push-pull technology (PPT) on the nutritional status of children aged 1-12 years. Non-push-pull (NPPT) farmers were used as a control group to establish a comparative model for this study. It determined household production, consumption, and surpluses, comparing the PPT adopters to the nonadopters; found out the incomes and food expenditures from farm products; found out the household dietary diversity scores; and finally found the nutritional status of the two household groups. A six faceted household-level metrics was employed. A sample of 216 households that registered 326 children was derived. This study was conducted in …
Determinants Of Integrated Soil Fertility Management Technologies Adoption By Smallholder Farmers In The Chinyanja Triangle Of Southern Africa,
2016
Chitedze Agricultural Research Station
Determinants Of Integrated Soil Fertility Management Technologies Adoption By Smallholder Farmers In The Chinyanja Triangle Of Southern Africa, Powell Mponela, Lulseged Tamene, Gift Ndengu, Ruth Magreta, Job Kihara, Nelson Mango
All Peer-Reviewed Publications
Integrated Soil Fertility Management (ISFM) technologies have proven to be viable options for improving land productivity and increasing yield. However, adoption of the set of complementary technologies that are required in ISFM is quite variable and studies tend to focus on single technologies. In this study we used cluster analysis to group technologies and ordered probit to determine the probability of multiple technology adoption. The result show that usage of ISFM in the Chinyanja Triangle (Southern Africa) is grouped into 3 technological sets based on complementarities. The set of nutrient dense technologies of inorganic fertiliser, compost and animal manure (ISFMset3) …
Aplikasi Sitokinin Untuk Pematahan Dormansi Benih Kentang G1 (Solanum Tuberosum L.),
2016
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Aplikasi Sitokinin Untuk Pematahan Dormansi Benih Kentang G1 (Solanum Tuberosum L.), Anne Nuraini, Sumadi, R. Pratama
Jurnal Kultivasi
Kentang merupakan komoditas pertanian yang mempunyai arti penting di dunia. Kentang mempunyai berbagai macam keunggulan seperti sumber protein yang tinggi, tidak mudah rusak seperti sayuran lain, dan berpotensi dalam program diversivikasi pangan. Salah satu kendala dalam produksi kentang adalah adanya fase dormansi pada masa pertumbuhan kentang. Upaya mempercepat masa dormansi tanaman adalah dengan penambahan hormon pemacu pertumbuhan. Sitokinin merupakan salah satu hormon pemacu pertumbuhan yang berperan dalam pembelahan sel. Tujuan dilakukannya penelitian ini adalah untuk mengetahui pengaruh konsentrasi sitokinin terhadap dormansi benih kentang. Penelitian ini dilakukan di laboratorium Teknologi Benih Fakultas Pertanian Universitas Padjadjaran. Sitokinin yang digunakan pada penelitian ini …
Rerspon Tanaman Hanjeli (Coix Lacryma-Jobi L.) Akibat Kombinasi Jarak Tanam Dengan Dosis Pupuk Organik Cair Di Kecamatan Rancakalong,
2016
Fakultas Pertanian, Universitas Padjadjaran Jl.Raya Jatinangor Km .21 Jatinangor, Sumedang45363
Rerspon Tanaman Hanjeli (Coix Lacryma-Jobi L.) Akibat Kombinasi Jarak Tanam Dengan Dosis Pupuk Organik Cair Di Kecamatan Rancakalong, Agus Wahyudin, Ruminta, Yuyun Yuwariah, M. Fauzi
Jurnal Kultivasi
Pertambahan jumlah penduduk yang sangat besar menyebabkan kebutuhan pangan meningkat.Salah satu alternatif yang dapat dijadikan solusi adalah program diversifikasi pangan.Hanjeli adalah salah satu tanaman pangan alternatif, namun petani belum mendalami teknik budidaya tanaman ini terutama pemupukan.Oleh karena itu dilakukan suatu upaya untuk meningkatkan pertumbuhan dan hasil hanjeli dengan kombinasi jarak tanam dengan dosis pupuk organik cair.Penelitian ini bertujuan untuk memperoleh kombinasi jarak tanam dengan dosis pupuk organik cair untuk meningkatkan hasil tanaman hanjeli. Percobaan dilaksanakan di Desa Pasir Biru, Kecamatan Rancakalong, Kabupaten Sumedang pada bulan Desember 2015 sampai dengan Mei 2016. Bibit Hanjeli yang dipergunakan adalah Hanjeli Pulut aksesi 37.Rancangan …
Pengaruh Konsentrasi Pupuk Organik Cair (Poc) Dan Dosis Pupuk N, P, K Terhadap Pertumbuhan Dan Hasil Tanaman Jagung Manis (Zea Mays L. Var Rugosa Bonaf) Kultivar Talenta,
2016
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran 2) Dosen Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Pengaruh Konsentrasi Pupuk Organik Cair (Poc) Dan Dosis Pupuk N, P, K Terhadap Pertumbuhan Dan Hasil Tanaman Jagung Manis (Zea Mays L. Var Rugosa Bonaf) Kultivar Talenta, S. Puspadewi, Wawan Sutari, Kusumiyati
Jurnal Kultivasi
Percobaan bertujuan untuk mencari konsentrasi pupuk organik cair dan pupuk N, P, K yang terbaik terhadap pertumbuhan dan hasil tanaman jagung manis kultivar Talenta. Percobaan dilaksanakan dari bulan Maret hingga Mei 2014 di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran, Jatinangor, Sumedang dengan ketinggian tempat ± 750 m di atas permukaan laut. Percobaan dilakukan menggunakan metode percobaan di lapangan dengan Rancangan Acak Kelompok (RAK) yang terdiri dari tujuh perlakuan dan diulang empat kali yaitu: 1 dosis rekomendasi pupuk N, P, K; 1 kali konsentrasi pupuk organik cair; 2 kali konsentrasi pupuk organik cair; 1 kali konsentrasi pupuk organik cair + ½ …
Aplikasi Pupuk Organik Terhadap Hasil Kacang Hijau (Vigna Radiate L.) Di Ultisol,
2016
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Jenderal Soedirman
Aplikasi Pupuk Organik Terhadap Hasil Kacang Hijau (Vigna Radiate L.) Di Ultisol, Ida Widiyawati, T. Harjoso, T. T. Taufik
Jurnal Kultivasi
Permasalahan budidaya kacang hijau di Indonesia adalah produktivitas yang masih rendah dan lahan budidaya yang terbatas, sehingga dapat diatasi dengan mengoptimalkan lahan marginal seperti tanah ultisol untuk kegiatan budidaya kacang hijau. Tujuan pene-litian ini adalah untuk mengetahui varietas kacang hijau dan jenis pupuk organik yang mampu menghasilkan produksi tinggi di tanah ultisol. Penelitian dilakukan menggunakan polibag di Screen House, Fakultas Pertanian, Universitas Jenderal Soedirman pada bulan Juli-September 2015. Penelitian menggunakan Rancangan Acak Kelompok Lengkap (RAKL) dengan dua faktor. Faktor pertama adalah varietas kacang hijau yang terdiri atas tiga varietas, yaitu Vima 1, Betet, dan Murai. Faktor kedua adalah jenis pupuk, …
Aplikasi Pupuk Organik Cair Pada Tanaman Kentang Varietas Granola Di Dataran Medium,
2016
Jurusan Agroteknologi, Fakultas Pertanian, Universitas Tribhuwana Tunggadewi
Aplikasi Pupuk Organik Cair Pada Tanaman Kentang Varietas Granola Di Dataran Medium, Hidayati Karamina, Wahyu Fikrinda
Jurnal Kultivasi
Kentang merupakan tanaman semusim dengan berbentuk menyemak dan memiliki sifat menjalar. Salah satu alternative upaya untuk meningkatkan hasil produktivitas kentang yaitu adalah penanaman kentang pada dataran medium. Tujuan dari penelitian ini adalah untuk menentukan jenis jenis dan takaran pupuk organik cair yang optimum dalam meningkatkan produksi kentang di dataran medium sehingga dari efektivitas itulah diharapkan pertumbuhan dan produktivitas kentang mampu optimal. Penelitian ini menggunakan Rancangan Acak Kelompok dengan 3 ulangan dengan 11 perlakuan. Hasil penelitian menunjukkan bahwa pupuk organik cair BIO-As dengan dosis 25 ml.l -1 mampu meningkatkan pertumbuhan tinggi tanaman, jumlah daun, jumlah batang, dan bobot total tanaman kentang. …
Pertumbuhan Eksplan Meristem Bawang Putih (Allium Sativum L.) Kultivar Tawangmangu Pada Berbagai Komposisi Kinetin Dan Ga3 In Vitro,
2016
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Padjadjaran
Pertumbuhan Eksplan Meristem Bawang Putih (Allium Sativum L.) Kultivar Tawangmangu Pada Berbagai Komposisi Kinetin Dan Ga3 In Vitro, Y. Sholihin, Erni Suminar, Wieny Heriliya Rizky, G. G. Pitaloka
Jurnal Kultivasi
Bawang putih merupakan komoditas penting di Indonesia. Indonesia merupakan negara terbesar pengimpor bawang putih. Permasalahan yang dihadapi dalam teknik produksi benih secara konvensional menjadi salah satu faktor pembatas tidak optimalnya pengembangan dan penyebaran benih tersebut. Produksi benih in vitro dapat dijadikan sebagai metode alternatif dalam perbanyakan benih sumber kultivar unggul. Penelitian ini bertujuanuntuk mendapatkan komposisi kinetin dan GA3 terbaik pada media dasar MS untuk regenerasi eksplan meristemsecara in vitro.Penelitian dilaksanakan di Laboratorium Kultur JaringanBalai Pengembangan Benih Hortikultura dan Aneka Tanaman Pasir Banteng, Kecamatan Jatinangor, Kabupaten Sumedang, Provinsi Jawa Barat, yang berlangsung dari bulan April hingga Juli 2015. Eksplan yang digunakan …
