Search Results

You are looking at 1 - 10 of 7,074 items for :

  • Refine by Access: All Content x
Clear All

. Harnos ZS. , 1993 . Idojárás és idojárás–termés összefüggéseinek idosoros elemzése . In.: Aszály 1983 (Szerk.: BARÁTH CS.-NÉ, GYORFFY B. & HARNOS Zs.) 9 – 43 . KÉE. Budapest

Restricted access

. Biometriai módszerek a kutatásban Szász G., 1981. Az időjárási folyamatok és a termés közötti kapcsolat modellezésének alapjai. Időjárás. 85 . 334--345. Az

Restricted access

previous N application in two Hungarian long-term field trials. Commun. Soil Sci. Plant Anal. 36 . 215–230. Bircsák Residual effects of previous N application in two Hungarian long-term

Restricted access
Agrokémia és Talajtan
Authors:
M. Jolánkai
,
Á. Tarnawa
,
H. F. Nyárai
,
Z. Szentpétery
, and
M. K. Kassai

References Berzsenyi Z. – Árendás T. , 2009 . The importance of long-term trials in the development of crop

Restricted access

Debreczeni, B. (2009): Nemzetközi áttekintés a világ szántóföldi tartamkísérleteiről. (International review of the world’s long-term field experiments.) pp. 19–20. In: Debreczeni, B., Németh, T. (eds.), Az

Restricted access

25 36 48 Kane, J. M.: Treatment programme and long-term outcome in chronic schizophrenia. Acta Psychiatr. Scand. Suppl., 1990, 82 (S

Restricted access

. Occurence of stem base diseases of four cereal species grown in long-term monocultures . Polish Journal of Natural Sciences. 22 . 4 : 574 – 583 . 8. Nagy J

Restricted access

. Modeling the long-term behaviour of structural timber for typical service class II conditions in South-West Germany , Habilitation Thesis , University of Stuttgart . Germany , 2010 . [4] STN EN 338

Restricted access

The effect of natural rainfall and N, P and K nutrients on the yield of maize was investigated in 16 years of a long-term fertilization experiment set up at the Experimental Station of the Institute in Nagyhörcsök. The soil was a calcareous chernozem, having the following characteristics: pH (KCl): 7.3, CaCO 3 : 5%, humus: 3%, clay: 20-22%, AL-soluble P 2 O 5 : 60-80, AL-soluble K 2 O: 180-200, KCl-soluble Mg: 150-180; KCl+ EDTA-soluble Mn, Cu and Zn content: 80-150, 2-3 and 1-2 mg·kg -1 . The experiment had a split-split-plot design with 20 treatments in 4 replications, giving a total of 80 plots. The treatments involved three levels each of N and P and two levels of K in all possible combinations (3×3×2=18), together with an untreated control and one treatment with a higher rate of NPK, not included in the factorial system. The main results can be summarized as follows: An analysis of the weather in the 16 experimental years revealed that there were no average years, as two years were moderately dry (1981, 1982), eight were very dry (1973, 1978, 1986, 1989, 1990, 1993, 1997, 2002) and six were very wet (1969, 1974, 1977, 1994, 1998, 2001). In dry years the N, NP and NK treatments led to a yield increment of over 3.0  t·ha -1 (3.2 t·ha -1 ) (81%) compared with the unfertilized control, while the full NPK treatment caused hardly any increase in the maize yield (7.2 t·ha -1 ). In the case of drought there was a 4.0% yield loss in the N, NP and NK treatments compared to the same treatments in the dry years. This loss was only 1.0% in the NPK treatment. In very wet years the positive effects of a favourable water supply could be seen even in the N, NP and NK treatments (with yields of around 7.4 t·ha -1 ). The yield increment in these treatments compared with the droughty years averaged 8%, while balanced NPK fertilization led to a further 2% increase (10%). Significant quadratic correlations were found between the rainfall quantity during the vegetation period and the yield, depending on the nutrient supplies (Ø: R = 0.7787***, N: R = 0.8997***, NP: R = 0.9338***, NK: R = 0.9574***, NPK: R = 0.8906***). The optimum rainfall quantity and the corresponding grain yield ranged from 328-349 mm and 5.0-7.7 t·ha -1 , respectively, depending on the fertilizer rate. The grain yield increment obtained per mm rainfall in the case of optimum rainfall supplies was found to be 14.3-23.2 kg·ha -1 , while the quantity of rainfall utilized during the vegetation period for the production of 1 kg air-dry matter in the case of maximum yield amounted to 698, 449, 480, 466 and 431 litres in the control, N, NP, NK and NPK treatments, respectively. It was clear from the 43-year meteorological database for the experimental station (1961-2003) that over the last 23 years (1981-2003) the weather has become substantially drier. Compared with the data for the previous 20 years (1961-1980) there was an increase of 20, 500 and 50% in the number of average, dry and droughty years, no change in the number of wet years and a 71% drop in the number of very wet years.

Restricted access

classification systems ( Czinder and Török 2015 ; Palassi and Danesh 2016 ). Long-term durability is also important for the description of the behavior of the various rocks undergoing continuous abrasive impact. Erichsen ( 2015 ) tested the long-term

Open access