نتایج جستجو برای: coarse grain soil

تعداد نتایج: 265184  

Journal: :Plant physiology 2014
Barbara Hufnagel Sylvia M de Sousa Lidianne Assis Claudia T Guimaraes Willmar Leiser Gabriel C Azevedo Barbara Negri Brandon G Larson Jon E Shaff Maria Marta Pastina Beatriz A Barros Eva Weltzien Henry Frederick W Rattunde Joao H Viana Randy T Clark Alexandre Falcão Rodrigo Gazaffi Antonio Augusto F Garcia Robert E Schaffert Leon V Kochian Jurandir V Magalhaes

Low soil phosphorus (P) availability is a major constraint for crop production in tropical regions. The rice (Oryza sativa) protein kinase, PHOSPHORUS-STARVATION TOLERANCE1 (OsPSTOL1), was previously shown to enhance P acquisition and grain yield in rice under P deficiency. We investigated the role of homologs of OsPSTOL1 in sorghum (Sorghum bicolor) performance under low P. Association mapping...

2006
Filip Blagojević

The Importance of parallel mesh generation and emerging growth of SMT architectures raise an important question of adapting parallel mesh generation software to the SMT architecture. In this work we focus on Parallel Constrained Delaunay Mesh Generation. We explore medium grain parallelism at the sub-domain level. This parallel approach targets commercially available SMT processors. Our goal is...

2012
BIKASH C. SARKER

A study was conducted to evaluate the effects of liming on chemical properties of wheat field soils and yield of wheat in Ranisankail soil series of Bangladesh. There were eight treatments of liming material applied from dolomite (CaCO3.MgCO3). Yield and yield components of wheat were recorded at harvest and the grain and straw were analyzed for P, S, Ca and Mg contents. The post harvest soils ...

2013
E. N. Ogbodo

The influence of crop residue amendments on the chemical properties of an acid soil and rice yields was investigated at Abakaliki for two cropping growing seasons (2006 and 2007). The residue treatments were rice straw, burnt rice husk and legume residue, while the rice cultivars were ITA 315, Ex-China and ITA 257. The design of the experiment was a 3 x 4 factorial in a Randomize Complete Block...

2010
Abdelghani Chehbouni

This paper develops two different approaches for downscaling (disaggregation) passive microwave derived soil moisture from coarse resolution L-band observations. Ground and airborne data collected over Walnut Gulch experimental watershed during the Monsoon ’90 experiment were used to test these approaches. These data consisted of eight micrometeorological stations (METFLUX) and six flights of t...

2013
Piotr Szulc

This paper presents the effect of soil supplementation with urea and magnesium on nitrogen uptake and its utilization by two different types of hybrid maize cultivars. Based on the results of 3-year fertilization studies, it was shown that for average volume of grain yield of maize, nitrogen content in grain dry matter and nitrogen uptake with its yield was significantly determined by the doses...

2016
Deanna L. Funnell-Harris Jeffrey F. Pedersen

Funnell-Harris, D. L., and Pedersen, J. F. 2011. Presence of Fusarium spp. in air and soil associated with sorghum fields. Plant Dis. 95:648-656. Sorghum grain, valuable for feed, food, and bioenergy, can be colonized by several Fusarium spp.; therefore, it was of interest to identify possible sources of conidia. Analysis of air and soil samples provided evidence for the presence of propagules ...

In this study, to investigate the effects of runoff harvesting on soil properties in the semiarid forest, runoff harvesting through semi-circular bund was considered as a method to conserve soil and thereby combat tree mortality. In order to evaluate this hypothesis, runoff was harvested through the semi-circular bund affecting soil quality and moisture storage. The selected forest site is loca...

2018
Zuolin Liu Brandon Dugan Caroline A Masiello Leila M Wahab Helge M Gonnermann Jeffrey A Nittrouer

Biochar may improve soil hydrology by altering soil porosity, density, hydraulic conductivity, and water-holding capacity. These properties are associated with the grain size distributions of both soil and biochar, and therefore may change as biochar weathers. Here we report how freeze-thaw (F-T) cycling impacts the grain size of pine, mesquite, miscanthus, and sewage waste biochars under two d...

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