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Pengelolaan N-tanah dan Pemupukan N
Nitrogen dalam bentuk N2 bebas tersedia di atmosfer dengan jumlah yang besar yakni mencapai 78%. Namun, N2 bebas tidak dapat dikonsumsi langsung oleh tanaman untuk memenuhi kebutuhan unsur N pada fase vegetatif dan generatif. Bentuk nitrogen yang dapat diserap oleh tanaman adalah N-NO3– dan N-NH4+. Hanya saja, kedua bentuk N tersedia tersebut bersifat mobile dan mudah hilang. Dalam buku ini, dibahas secara lengkap perihal siklus Nitrogen mulai dari sumber N, transformasi N, dan penyebab kehilangan N, hal ini untuk mendukung pengelolaan N-tanah yang lebih baik. Penggunaan pupuk secara optimal dan seimbang sangat penting untuk meningkatkan produksi tanaman. Untuk meningkatkan penyediaan N ba...
Teknologi Pupuk dan Pemupukan Ramah Lingkungan
Pemupukan merupakan salah satu bagian penting dalam pemeliharaan tanaman. Nutrisi mineral yang ada di tanah akan diserap oleh akar tanaman, sehingga tanaman dapat memberikan produksi yang optimal. Akan tetapi, nutrisi yang ada di tanah secara bertahap akan hilang akibat diserap tanaman, tercuci, dan terbawa oleh limpasan permukaan, sehingga nutrisi tersebut perlu untuk dicukupi kembali. Pupuk menjadi solusi untuk menyuplai kembali nutrisi yang hilang dengan jumlah yang tepat. Tidak jarang pemenuhan nutrisi melalui pemupukan tidak diperhitungkan sesuai dengan kebutuhan tanaman. Hal ini menimbulkan dampak buruk yang tidak hanya menurunkan produktivitas pertanian, tetapi juga membahayakan keber...
Pengelolaan Bahan Organik di Lahan Pertanian
Pengelolaan kesuburan tanah dan pasokan air sangat penting untuk keberhasilan produksi tanaman di semua komoditas pertanian. Penggunaan pupuk anorganik telah menjadi kontributor signifikan terhadap peningkatan produktivitas tanaman sejak revolusi hijau, dan telah mengakibatkan berkurangnya penggunaan sumber nutrisi organik yang telah diandalkan petani selama berabad-abad. Kualitas pupuk, biayanya, dan kontribusi hasil beragam seperti sumbernya. Sumber pupuk organik yang paling umum digunakan dalam produksi tanaman adalah kotoran ternak kompos dan sisa tanaman hijau, bahan organik di pekarangan dan pupuk organik dari sistem alaml dan sistem produksi material. Ketergantungan pada pupuk anorgan...
Biodiversity and Pest Management in Agroecosystems
Explore the latest research on biological control! Completely updated for 2004, this new edition examines methods for making agricultural systems less susceptible to insect pests. Containing new findings and reports of strategies, Biodiversity and Pest Management in Agroecosystems, Second Edition will show you how pests can be managed by enhancing beneficial biodiversity using agroecological diversification methods. Biodiversity and Pest Management in Agroecosystems, Second Edition provides you with an essential overview of the role of biodiversity in agriculture and then gets specific, with new and updated information on: the agroecology of pest management plant diversity and pest outbreaks...
Rice
Rice ecosystems; Nutrient management; Mineral deficiencies; Mineral toxicities; Tools and information.
Soil Biology Guide
A comprehensive study of the biology, taxonomy, and ecology of each of the soil biotic groups. The first chapter presents an ecological approach to soil studies. The remaining 42 chapters provide specific information on each of the taxonomic groupings. Contains illustrated identification keys to each group. Some keys go by functional morphological delineations; others lead the reader to classical identification at family, genus, or species levels. Some incorporate descriptions of new genera and species. Especially useful for the study of mesic, xeric, and hydric terrestrial sites. Includes an extensive bibliography.
Mangrove Ecosystems of Asia
The book provides an up-to-date account of mangrove forests from Asia, together with restoration techniques, and the management requirements of these ecosystems to ensure their sustainability and conservation. All aspects of mangroves and their conservation are critically re-examined. The book is divided into three sections presenting the distribution and status of mangrove ecosystems in Asia, the challenges they are facing, their issues and opportunities, and the management strategies for their conservation.
Tropical Forests
Large regions of the planet have been transformed from their natural composition into different human-made landscapes (farmlands, forest plantations, pastures, etc.). Such process, called land use change, is one of the major components of the current global change, which has brought the planet into a new geological era: the Anthropocene. Land use change is particularly important in tropical forests, as this ecosystem type is still heavily affected by deforestation for timber extraction, agricultural land creation of urban expansion. Changing land use has important implications for the services that tropical forests provide: production of goods such as timber, food or water; regulation of pro...
Biochar for Environmental Management
"Biochar is the carbon-rich product when biomass (such as wood, manure, or crop residues) is heated in a closed container with little or no available air. It can be used to improve agriculture and the environment in several ways, and its stability in soil and superior nutrient-retention properties make it an ideal soil amendment to increase crop yields. In addition to this, biochar sequestration, in combination with sustainable biomass production, can be carbon-negative and therefore used to actively remove carbon dioxide from the atmosphere, with major implications for mitigation of climate change. Biochar production can also be combined with bioenergy production through the use of the gase...
The Global Competitiveness Report 2007-2008
The World Economic Forum’s annual Global Competitiveness Report evaluates the potential for sustained economic growth of over 130 developed and emerging economies and ranks them accordingly. Since its first release in 1979, the Report has become the most authoritative and comprehensive study of its type. The 2007-2008 Report contains: • Detailed country competitiveness profiles of 131 economies • Data tables for survey and hard data variables ranking profiled economies • Global rankings: the Global Competitiveness Index and the Business Competitiveness Index, measuring growth and productivity, respectively • Exclusive data from the Executive Opinion Survey, with over 11,000 responses from business leaders worldwide. Produced in collaboration with a distinguished group of international scholars and a global network of over 130 leading national research institutes and business organizations, the Report also showcases the latest thinking and research on issues of immediate relevance for business leaders and policy-makers.
