Results 171 to 180 of about 613,546 (301)

Factors Affecting Hay Supply and Demand in Tennessee [PDF]

open access: yes
Understanding the interactions between supply and demand for hay is important because of hay’s significance to the agricultural sector and economy, and because hay is an important crop on highly erodible soils.
Roberts, Roland K.   +3 more
core  

Food Security Versus Environmental Health: The Nitrogen Dilemma

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Nitrogen is an essential element for plant growth and, consequently, crop production. However, the cycling of nitrogen in the environment can have negative effects. Here, we review the historical development of scientific and public awareness of these effects and the influence this has had on political action to control them.
Henrike Mielenz   +8 more
wiley   +1 more source

Grasses and forage crops

open access: yes, 2011
The importance of summer forage crops; The grass garden: Varieties worthy of trial; Japanese barn-yard millet; Sorghum; Kaffir corn, milo maize, and indian corn; Alfalfa: Effect of a second irrigation to induce germination.
Keffer, Charles A. (Charles Albert), 1861-1935
core  

Organic Matter Quality and Microbial Activity in Soils Managed With Brachiaria Succession

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Although succession systems and brachiaria improve soil quality, gaps remain in microbial community dynamics, activity, and soil organic matter stocks. Methods The objective was to evaluate the carbon (C) and nitrogen (N) stocks of soil organic matter fractions and their distribution, molecular characterization, enzyme activity ...
Siro Paulo Moreira   +5 more
wiley   +1 more source

Effects of Crop Rotation and Hydrogel Application on Soil Biological Properties and Wheat Biomass Production in Drylands

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background and aim Conservation agriculture (CA) is rapidly gaining traction to promote sustainable crop production, focusing on minimum soil disturbance, permanent soil cover, and strategic crop rotation. Moreover, hydrogel is increasingly being used to improve water retention, including in combination with CA, particularly in water limited ...
Tina Taghvaei   +3 more
wiley   +1 more source

Holocene vegetation change and fire–plant diversity shifts in Mediterranean France

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Changes in fire activity are recognized as a major threat to biodiversity and vegetation communities across the Mediterranean Basin. However, long‐term fire–vegetation interactions remain poorly investigated. Here, we combine a high‐resolution charcoal record with pollen data from the “Étang des Aulnes” lake (southern France) to reconstruct ...
Cécile Latapy   +13 more
wiley   +1 more source

‘The most advanced outpost of cultivation’: palynological evidence for cereal agriculture and population resilience in a marginal upland environment

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Upland farming in Europe is frequently assumed to have been limited and precarious, despite relict spade‐dug ridges providing firm evidence of past crop growing. Direct evidence for crop types in post‑Medieval to Modern (~since 1500 CE) uplands is rare; yet, in Ireland, relict spade‐dug ridges that date to this period are commonly interpreted ...
Helen Essell, Gill Plunkett
wiley   +1 more source

Chemistry and Microbiology of Forage-Crop Silage [PDF]

open access: yesApplied Microbiology, 1959
A G, Kempton, C L, Clemente
openaire   +2 more sources

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