Results 31 to 40 of about 312,287 (161)

Sistemas de dessecação antecedendo a semeadura direta de milho e controle de plantas daninhas Desiccation systems prior to no-till corn sowing and weed control

open access: yesCiência Rural, 2009
No sistema de plantio direto, a escolha do momento adequado para a dessecação da cobertura vegetal antecedente à semeadura é fundamental para o êxito da cultura do milho.
Jamil Constantin   +4 more
doaj   +1 more source

Single-Till Versus Dual-Till Regulation of Airports [PDF]

open access: yesSSRN Electronic Journal, 2015
Most airports operate under public ownership, while some are privatized and economically regulated. Only a few airports are privately owned and experience little or no ex-ante regulation of airport charges. On the other hand, airports nowadays earn as much revenue from transport-related activities as from commercially-oriented business activities ...
Achim I. Czerny, Anmin Zhang
openaire   +3 more sources

Effects of Different Straw Cover Patterns on Water Use Efficiency and Crop Growth

open access: yesAgronomy
Straw cover is commonly used in agriculture to reduce soil water loss and improve crop productivity. However, the effects of straw length and cover amount remain unclear.
Han Lin   +9 more
doaj   +1 more source

Perdas de nutrientes via subsuperfície em colunas de solo sob fertilização mineral e orgânica Nutrient losses via leaching from soil columns submitted to mineral and organic fertilization

open access: yesRevista Brasileira de Ciência do Solo, 2009
O uso de dejetos de animais na produção agrícola pode ocasionar a contaminação ou poluição das águas por nutrientes, principalmente com aplicações consecutivas na mesma área.
Ricardo Prado Piovesan   +4 more
doaj   +1 more source

Case Study on 5th Year Impact of Soil Tillage on Carbon/Nitrogen Agronomy Key Nexus in Winter Wheat—Soybean Rotation

open access: yesNitrogen
The scope of this research was to quantify the mid-term impact of different soil tillage on carbon/nitrogen agronomical key context under optimal growing conditions of the European moderate continental climate.
Štefan Tóth   +5 more
doaj   +1 more source

The influence of agricultural treatment type on the microbial properties of sod-podzolic soil

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2019
In this study we examined the effects of conventional agricultural treatment with plowing and no-till treatment on the physical, chemical and microbiological properties of agro-transformed sod-podzolic loamy soil.
A. D. Zhelezova   +4 more
doaj   +1 more source

ONION GENOTYPE SKILLS IN DIFFERENT PLANTING SYSTEMS

open access: yesCiência Agrícola, 2019
Currently, planting onion through seedling production is predominant in the state of Rio Grande do Sul. Thus, the present work aimed to evaluate the agronomic potential of new onion genotypes as a function of the planting system for this region.
Gabriel Mascarenhas Maciel   +5 more
doaj   +1 more source

Till Havs! Till Havs!

open access: yesDeshima
Pour comprendre l’engouement des Suédois pour les horizons marins, il est bon d’avoir à l’esprit que l’école a joué un rôle primordial dans la présence des mythèmes liés à la mer ; on peut même se demander s’il a existé un agent plus dévoué qu’elle pour encourager, de génération en génération, les vocations maritimes, mais aussi paradoxalement des ...
openaire   +1 more source

Farming Practice Variability and Its Implications for Soil Health in Agriculture: A Review

open access: yesAgriculture
Soil health is essential for sustainable agricultural operations, as it supports farm production and ecosystem services. The adoption of sustainable agriculture practices such as conservation tillage, cover cropping, and crop rotation provides ...
Elsadig Omer   +5 more
doaj   +1 more source

Carbon Input and Crop Residue Placement Determine the Carbon Sequestration Efficiency of Soil Management Techniques

open access: yesAgronomy
This paper aimed to study soil organic carbon (SOC) sequestration under no-tillage (NT) and full inversion tillage (FIT) soil management systems as influenced by crop residue placement.
Mauro Sarno   +2 more
doaj   +1 more source

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