Miller, Richard E.; Harrington, Timothy B.; Thies, Walter G.; Madsen, Jeff. 2006. Laminated root rot in a western Washington plantation: 8-year mortality and growth of Douglas-fir as related to infected stumps, tree density, and fertilization. Res. Pap. PNW-RP-569. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 37 p. A 4-year-old Douglas-fir pl...

Pig farming produces more manure than can reasonably be spread onto surrounding fields, particularly in regions with high livestock densities and limited land availability. Nutrient recycling offers an attractive solution for dealing with manure excesses and is one main objective of the European commission-funded project “BioEcoSIM”. Phosphate salts (“P-Salt”) were recovered from the separated ...

salinity tolerance is one of the most important affecting factors on agricultural production in arid and semi-arid areas. in order to study the effects of saline and fresh water irrigation with application of organic and npk fertilizers on cumin, a split plot experiment based on randomized complete block design was carried out with three replications during 2011 and 2012, at the research farm o...

Abstract The paper presents the results of studies on determination effect foliar dressings with macro- and micronutrient fertilizers linear growth, mass air-dry matter plants, leaf surface, formation a symbiotic apparatus yield seeds white lupine (Lupinualbus L.) in conditions black soils Central Black Earth region Russian Federation. field experiments were carried out 2018-2020 at Department ...

Experimental studies on the decontamination and stabilization of sludge sites sediment with calcium oxide treated disinfectant. The results research discovered that sewage Voronezh City is safe can be used as organic fertilizer for growing agricultural plants. Determination content macro-elements mineral nutrition in soil reaction its environment showed application fertilizers form increases am...

plant appropriate nutrition is one of the most important factors in improving the quality and quantity of product. providing adequate and balanced of plant nutrients is essential for achieving maximum potential production. potassium is one of the essential elements to plant’s growth. therefore, knowledge of soil potassium status is so important in order to optimum usage of potassium fertilizers...

BF2P4-5 was isolated from the rhizosphere soil of tomato plants, and its potential to promote plant growth investigated in plants. An vitro test revealed that strain could fix nitrogen, solubilize phosphate potassium, synthesize indole acetic acid. The bacterial identified characterized as a kind Pseudarthrobacter chlorophenolicus based on analysis culture characteristics, physiological biochem...