Results 21 to 30 of about 2,061,205 (256)

NUTRIENT BALANCE IN WATER HARVESTING SOILS [PDF]

Sociedade & Natureza, 2005
Dryland farming on Fuerteventura and Lanzarote (Canary Islands, Spain), which has an annual rainfall of less than 150 mm/year, has been based traditionally on water harvesting techniques (known locally as “gavias”). Periods of high productivity alternate
Díaz, F, Jiménez, C.C., Tejedor, M.
doaj  

Circular Economy in Wastewater Management—The Potential of Source-Separating Sanitation in Rural and Peri-Urban Areas of Northern Finland and Sweden

Frontiers in Environmental Science, 2022
Current practices in wastewater management lead to inefficient recovery and reuse of nutrients and can result in environmental problems. Source separation systems have been shown to be an efficient way of recovering nutrients and energy from wastewaters,
Suvi Lehtoranta, Vuokko Laukka, Brenda Vidal, Elisangela Heiderscheidt, Heini Postila, Ritva Nilivaara, Inga Herrmann   +6 more
doaj   +1 more source

Interannual dynamics of available potassium in a long-term fertilization experiment

Plant, Soil and Environment, 2009
Dynamics of the plant-available potassium (K) has been studied in polyfactorial long-term fertilization experiments since 1980. The fertilization scheme includes 10 combinations of K muriate and farmyard manure application rates (annually 0-230 kg K/ha).
M. Madaras, J. Lipavský
doaj   +1 more source

ENVIRONMENTAL ACCOUNTING IN AGRICULTURE: NUTRIENT ACCOUNTING AND OTHER ASPECTS [PDF]

Journal of Central European Agriculture, 2003
While traditional accounting focuses on accounting for capital assets, costs, yields valued and sold in the market, environmental accounting intends to do the same with non-marketed capital assets, costs and yields, that is, externalities. The farm level
P URFI, ZS BACSI, K SÁRDI, P POLGÁR, T SOMOGYI   +4 more
doaj  

Global river nutrient export: A scenario analysis of past and future trends [PDF]

, 2010
An integrated modeling approach was used to connect socioeconomic factors and nutrient management to river export of nitrogen, phosphorus, silica and carbon based on an updated Global NEWS model.
Bouwman, A.F., Garnier, J, Dumont, E.L., Van Drecht, G., Bouwman, A. F, Kroeze, C., Beusen, A. H. W, Dumont, E, Billen, G., Fekete, B. M, Harrison, J., Fekete, B.M., Drecht, G., van, Kroeze, C, Seitzinger, S.P., Garnier, J., Harrison, J.A., Mayorga, E, Billen, G, Van Drecht, G, Mayorga, E., Beusen, A.H.W., Seitzinger, S. P, Harrison, J. A, Dumont, E.   +24 more
core   +1 more source

Comparison of Methods to Determine Nutrient Uptake of Tomato Grown in Free-Draining Perlite Substrate—Key Information for Optimal Fertigation Management

Horticulturae
Two methods were compared to determine crop nutrient uptake by tomato crops in free-draining perlite substrate. They were the nutrient balance method (applied minus drained) and the dry matter method (DM) (nutrients in plant material). Uptake of N, P, K,
Juan M. Cedeño, Juan-José Magán, Rodney Bruce Thompson, María-Dolores Fernández, Marisa Gallardo   +4 more
doaj   +1 more source

Consórcios alface-cenoura e alface-rabanete sob manejo orgânico Intercropping of lettuce-carrot and lettuce-radish under organic management

Pesquisa Agropecuária Brasileira, 2006
Dois experimentos foram conduzidos, por dois anos consecutivos, em Seropédica, RJ, com o objetivo de avaliar o desempenho agronômico dos consórcios das cultivares de alface 'Regina 71' (lisa) e 'Verônica' (crespa) com cenoura 'Brasília' e rabanete ...
Ailena Sudo Salgado, José Guilherme Marinho Guerra, Dejair Lopes de Almeida, Raul de Lucena Duarte Ribeiro, José Antonio Azevedo Espindola, José Aparício de Aquino Salgado   +5 more
doaj   +1 more source

Evaluation of a Three-Level Cascade Soilless System Under Saline Greenhouse Conditions

Horticulturae
A three-level cascade hydroponic system was designed to enhance resource efficiency by reusing drainage solutions across sequential crops: tomato (primary-donor crop), herbs (mint, peppermint; secondary receivers from primary), and halophytes (lemon balm,
Eleni Karatsivou, Angeliki Elvanidi, Nikolaos Katsoulas   +2 more
doaj   +1 more source

Self-Selection of Feeding Substrates by Tenebrio molitor Larvae of Different Ages to Determine Optimal Macronutrient Intake and the Influence on Larval Growth and Protein Content

Insects, 2022
Nutrient self-selection was used to determine the optimal uptake of macronutrients by the yellow mealworm (Tenebrio molitor) larvae. The selection study consisted of four combinations of eight pelleted substrates from a total choice of 25, available to ...
Nina Kröncke, Rainer Benning
doaj   +1 more source

SUPPLEMENTARY FEEDING ON THE NUTRIENT BALANCE OF LACTATING DAIRY COW AT CONTRASTING TEMPERATURE REGIMES: ASSESSMENT USING CORNELL NET CARBOHYDRATE AND PROTEIN SYSTEM (CNCPS) MODEL [PDF]

, 2009
Dairy cows often do not receive adequate nutrient supply during their lactation period. This condition can even be worse if the environmental temperature is not in comfortable range which may occur especially in tropical regions.
Sofyan, A, A. Sofyan, Jayanegara, A, A. Jayanegara   +3 more
core   +1 more source