Results 51 to 60 of about 15,380 (225)

Relations among Valencia orange yields with soil and leaf nutrients in Northwestern Paraná, Brazil

Brazilian Archives of Biology and Technology, 2000
The Valencia orange orchards established on soils of low fertility in the Northwest region of Paraná State, Brazil, have showed symptoms of Mg deficiency and reduced fruit yields.
Jonez Fidalski, Pedro Antonio Martins Auler, Valdomiro Tormem   +2 more
doaj   +1 more source

Foliar diagnosis in Phalaenopsis orchid plants subjected to application of nitrogen

African Journal of Agricultural Research, 2015
Production of orchids is important in floriculture, and nitrogen is one of the nutrients most required by plants. However, there is little information on nitrogen leaf analysis of these orchids. We evaluated the nitrogen fertilization on leaf nutritional status and on the production of dry mass and develop a diagnostic sheet for the orchid Phalaenopsis.
Mantovani Cibele, de Mello Prado Renato, Fernandes Lopes Pivetta Kathia   +2 more
openaire   +2 more sources

Fungal disease management in cotton using plant protection products: An Australian perspective

Pest Management Science, EarlyView.
Cotton disease management requires evidence‐driven use of plant protection products. Progress hinges on integrating chemistry, diagnostics, stewardship and sustainability to build resilient production systems. Abstract Cotton production faces persistent challenges from pathogens that compromise plant establishment, yield, and fibre quality.
Noel L Knight, Linda J Smith, Sambasivam Periyannan, Levente Kiss   +3 more
wiley   +1 more source

Variabilidade espacial dos teores foliares de nutrientes e da produtividade da soja em dois anos de cultivo em um latossolo vermelho Spatial variability of leaf nutrient content and soybean yield grown for two years in a rhodic hapludox

Revista Brasileira de Ciência do Solo, 2010
A análise dos teores de nutrientes de folhas de soja é um dos métodos mais eficientes para avaliar o estado nutricional da lavoura. O objetivo deste estudo foi caracterizar a variabilidade espacial dos teores foliares de nutrientes e da produtividade da ...
Sidney Rosa Vieira, Osvaldo Guedes Filho, Márcio Koiti Chiba, Estevão Vicari Mellis, Sônia Carmela Falci Dechen, Isabella Clerici De Maria   +5 more
doaj   +1 more source

Faixas de suficiência para teores foliares de nutrientes em algodão e em soja, definidas em função de índices DRIS. [PDF]

, 2013
A diagnose dos estados nutricionais do algodoeiro e da soja, pelo método de níveis críticos, tem-se embasado em faixas de suficiência estabelecidas há muitos anos, com pequenas adequações no período.
KURIHARA, C. H., NEVES, J. C. L., NOVAIS, R. F. de, STAUT, L. A., VENEGAS, V. H. A.   +4 more
core   +4 more sources

Corn Yield and Foliar Diagnosis Affected by Nitrogen Fertilization and Inoculation with Azospirillum brasilense [PDF]

Revista Brasileira de Ciência do Solo, 2016
ABSTRACT The biological nitrogen fixation (BNF) process in grasses is caused by diazotrophic bacteria, particularly Azospirillum brasilense. However, studies are lacking on BNF efficiency to define how much mineral nitrogen (N) can be applied to achieve more sustainable high yields.
Galindo, Fernando Shintate, Minhoto Teixeira Filho, Marcelo Carvalho, Buzetti, Salatier, Kondo Santini, Jose Mateus, Alves, Cleiton Jose, Nogueira, Lais Meneghini, Ziolkowski Ludkiewicz, Mariana Gaioto, Andreotti, Marcelo, Miranda Bellotte, Joao Leonardo   +8 more
openaire   +6 more sources

Ground‐based robotic remote sensing for standardized biodiversity monitoring in coastal habitats

Remote Sensing in Ecology and Conservation, EarlyView.
Illustrated workflow of the proposed citizen‐to‐robot monitoring pipeline: (i) expert‐validated citizen observations are translated into AI models, (ii) deployed on a ground‐based robotic platform for proximal sensing of coastal dune habitats, (iii) enabling standardized detection of ecological targets (e.g., Pancratium maritimum & Brithys crini), and (
Giovanni Di Lorenzo, Simonetta Bagella, Micaela del Valle Rasino, Maria Laura Carranza, Manolo Garabini, Franco Angelini   +5 more
wiley   +1 more source

Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences

Journal of Animal Ecology, EarlyView.
This study reveals how long‐term activation of jasmonic and salicylic acid signalling reshapes arthropod communities and plant fitness across seasons. By showing that induced defences generate contrasting outcomes and cascading trade‐offs across trophic levels, it challenges the assumption that induced resistance is uniformly beneficial in natural ...
Mônica F. Kersch‐Becker, Guilherme P. Pinheiro, Thaís S. Schweller, Martin Pareja, Victoria M. Pocius, José R. Trigo, Gustavo Q. Romero   +6 more
wiley   +1 more source

Relationship between tree nutritional status and apple quality

Horticultural Science, 2014
Development of prediction models for the quality of apples is useful in guiding fruit tree nutrition and in optimising fruit management. The interrelationships between the leaf nutrient contents and some fruit quality indices were studied in five apple ...
C. Jivan, F. Sala
doaj   +1 more source

Tropidosteptes forestierae (Hemiptera: Heteroptera: Miridae: Mirinae): a new species of Plant Bug injuring ornamental Florida Swampprivet, Forestiera segregata (Oleaceae), in South Florida [PDF]

, 2012
The mirine plant bug Tropidosteptes forestierae, new species (Hemiptera: Miridae) is described from Collier County, Florida, where it was found causing serious injury to an extensive ornamental hedge of Florida swampprivet, Forestiera segregata (Jacq ...
Caldwell, Doug L., Halbert, Susan E., Henry, Thomas J.   +2 more
core   +1 more source