Results 21 to 30 of about 21,641 (262)

Soil phosphorus dynamics as affected by Congo grass and P fertilizer

Scientia Agricola, 2014
Some plant species can change soil phosphorus (P) availability and this may be an important tool in managing tropical high fixing phosphorus soils. An experiment was conducted to evaluate phosphorus transformations in the soil and phosphatase activity ...
Ciro Antonio Rosolem, Alexandre Merlin, Júlio Cesar Longo Bull   +2 more
doaj   +1 more source

Can Palisade and Guinea Grass Sowing Time in Intercropping Systems Affect Soybean Yield and Soil Chemical Properties?

Frontiers in Sustainable Food Systems, 2020
In tropical regions, intercropping systems under no-tillage improve biomass quantity, soil conservation, and cash crop productivity. However, the optimal sowing time for forage species in these cropping systems is unknown. The objective of this study was
Nídia Raquel Costa, Nídia Raquel Costa, Marcelo Andreotti, Carlos Alexandre Costa Crusciol, Cristiano Magalhães Pariz, João William Bossolani, João William Bossolani, João William Bossolani, André Michel de Castilhos, Carlos Antonio Costa do Nascimento, César Gustavo da Rocha Lima, Carolina dos Santos Batista Bonini, Eiko Eurya Kuramae, Eiko Eurya Kuramae   +13 more
doaj   +1 more source

Spread of African Pasture Grasses to the American Tropics [PDF]

Journal of Range Management, 1972
The once limitless forests of humid tropical America are rapidly being converted to grasslands. Areas newly cleared of selva or montania are cropped for a few years, then planted to perennial African grasses to form "artificial" pastures. These generally have been aggressively colonizing species, readily disseminated either by seed or cutting, and they
openaire   +2 more sources

Effect of the tropical tannin-rich shrub legumes Calliandra calothyrsus and Flemingia macrophylla on methane emission and nitrogen and energy balance in growing lambs

Animal, 2008
The objective of this study was to test whether the use of tannin-rich shrub legume forage is advantageous for methane mitigation and metabolic protein supply at unchanged energy supply when supplemented in combination with tannin-free legumes to sheep ...
T.T. Tiemann, C.E. Lascano, H.-R. Wettstein, A.C. Mayer, M. Kreuzer, H.D. Hess   +5 more
doaj   +1 more source

Leveraging High-Resolution Satellite Imagery and Gradient Boosting for Invasive Weed Mapping

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
An introduced pasture grass (Andropogon gayanus - gamba grass) is spreading through the tropical savannas of northern Australia, with detrimental ecosystem consequences including increased fire intensity.
Yuri Shendryk, Natalie A. Rossiter-Rachor, Samantha A. Setterfield, Shaun R. Levick   +3 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Adaptive Responses of Tropical Crops: A Multi‐Scale Omics Integrated Perspective

Advanced Science, EarlyView.
Tropical crops integrate genomic, morphological, physiological, and ecological adaptations to thrive under extreme and variable environments. This review highlights how natural selection, domestication, and breeding shape stress resilience, resource‐use strategies, and productivity in sugarcane, banana, cassava, rubber and oil palm, offering new routes
Peilin Wang, Chenhui Li, Dongjiao Wang, Qibin Wu, Zhen Zeng, Huiming Guo, Han Cheng, Songbi Chen, Hongxing Cao, Hongmei Cheng, Jianghui Xie, Youxiong Que   +11 more
wiley   +1 more source

Phylogenomic insights into the genus Tulipa (Liliaceae): Taxonomy, evolution, and biogeography

American Journal of Botany, EarlyView.
Abstract Premise Tulips are one of the best‐known geophytes, but their taxonomy remains convoluted and their evolutionary history poorly understood. Here, we used plastid genomes to identify some issues with current classification, understand the diversification history of the genus, and identify potential species linked to historical cultivation ...
Brett Wilson, Maarten J. M. Christenhusz, Nathanael Walker‐Hale, Natalya Beshko, Mariyo Boboev, Colin Clubbe, Davron Dekhkonov, Aibek Dolotbakov, Mehmet Firat, Thomas Freeth, Sjaak de Groot, Avni Hajdari, Georgy A. Lazkov, Ormon Sultangaziev, Komiljon S. Tojibaev, Ben J. M. Zonneveld, Kaiyrkul T. Shalpykov, Samuel F. Brockington   +17 more
wiley   +1 more source

A historical appraisal of the tropical forages collection conserved at CIAT

Genetic Resources, 2020
A report on the tropical forage germplasm collection conserved in the CIAT genebank is presented. Emphasis is firstly on the assembling of the collection during 1972‒1993 through about 70 major and minor collecting missions in tropical America, Africa ...
Rainer Schultze-Kraft, Michael Peters, Peter Wenzl   +2 more
doaj   +1 more source

Comparative Assessment of Landsat‐8 and SPOT‐7 Satellite Data With Field Spectral Measurements for Estimating Plant Diversity in Sandy Grasslands

Biological Diversity, EarlyView.
We compared Landsat‐8 OLI, SPOT, and hyperspectral data for estimating vascular plant diversity in China's Hunshandak Sandland. SPOT data showed the strongest correlation with alpha diversity, followed by hyperspectral data, with Landsat‐8 performing the weakest.
Ying Ye, Jianxiong Lan, Xiaoyue Zhang, Yu Peng   +3 more
wiley   +1 more source