+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The problem of the application of urea-formaldehyde fertilizers.

, : The problem of the application of urea-formaldehyde fertilizers.. Trudy severozapad. nauch.-issled. Inst. ser. Khoz, 4: 26-27

Urea-formaldhehyde fertilizers I & II with total-N contents of 37.5 & 39.5% & water-soluble N contents of 5.1 & 11.4% respectively were tested on medium podzolic soils. In pot tests with barley on clayey soil the barley yield was 2% lower with II & 8% lower with I than with urea. In small-plot tests on light loam soils the yield of potatoes was 22% lower with I than with urea. Urea-formaldehyde possessed lower nitrification capacity than urea.


Other references

Wang, Y-qian.; Li, X-feng.; Zhou, X.; Liu, X-quan.; Wang, W-ping., 2012: Protective effects of Chinese herbal medicine Zuogui Pill on retina ganglion cells after optical nerve clipping injury in rats. To investigate the protective effects of Zuogui Pill (ZGP), a compound Chinese herbal medicine, on retina ganglion cells (RGCs) in rats after optical nerve clipping injury. Optic nerves in Sprague-Dawley rats were crushed intraorbitally at 2 mm be...

Magno, Paulo, R., 2001: Genera novo e especie nova de Rhinotragini (Coleoptera, Cerambycidae, Cerambycinae). A new genus, Monneus, and a new species, M. longiventris (Rhinotragini) are described from Bolivia (Santa Cruz). The holotype and the male genitalia are illustrated.

Dietrich, C.F., 2008: Endosonography as theme of this issue--update of endoscopic ultrasound techniques. Zeitschrift für Gastroenterologie 46(6): 553-554

Cummings, J.M.; Boullier, J.A., 2000: Scrotal dog bites. Purpose: Dog bites to the scrotum are rare but they potentially result in morbidity if improperly managed. Materials and Methods: Between 1991 and 1999 we treated 4 men and 3 boys with dog bites to the scrotum. All 7 patients presented to the emer...

Strumpel, P., 1959: Ear damage caused by streptomycin. Das Deutsche Gesundheitswesen 14(14): 622-626

Abishev, Ba, 1986: Effect of ecological factors on the morpho-functional status of sheeps thyroid gland. Trudy Instituta Eksperimental'noi Biologii Akademiia nauk Kazakhskoi SSR8(18): 52-65

Sarkar, U.; Hobbs, S.E.; Longhurst, P., 2003: Dispersion of odour: a case study with a municipal solid waste landfill site in North London, United Kingdom. Municipal solid waste (MSW) landfills are a potential source of offensive odours that can create annoyance within communities. Dispersion modelling was used to quantify the potential odour strength causing an impact on the community around a parti...

Neocleous, M.; Barbano, D.M.; Rudan, M.A., 2002: Impact of low concentration factor microfiltration on the composition and aging of Cheddar cheese. The effect of microfiltration (MF) on proteolysis, hardness, and flavor of Cheddar cheese during 6 mo of aging was determined. Raw skim milk was microfiltered two-fold in two cheese making trials. In trial 1, four vats of cheese were made in 1 d u...

Barniol, J.; Niemann, S.; Louis, Vérie.R.; Brodhun, B.; Dreweck, C.; Richter, E.; Becher, H.; Haas, W.; Junghanss, T., 2010: Transmission dynamics of pulmonary tuberculosis between autochthonous and immigrant sub-populations. The overall incidence of tuberculosis (TB) in Western Europe has been declining since the 19th Century. However, immigrant sub-groups from high-prevalence countries are slowing down this trend. The aim of this study was to describe how immigration...

Snijders, T.; Wall, B.T.; Dirks, M.L.; Senden, J.M.G.; Hartgens, F.; Dolmans, J.; Losen, M.; Verdijk, L.B.; van Loon, L.J.C., 2014: Muscle disuse atrophy is not accompanied by changes in skeletal muscle satellite cell content. Muscle disuse leads to a considerable loss in skeletal muscle mass and strength. However, the cellular mechanisms underlying disuse-induced muscle fibre atrophy remain to be elucidated. Therefore we assessed the effect of muscle disuse on the CSA...