Examination of nutrient reaction of winter wheat after sunflower forecrop

We tested the fertilizer reaction of four different winter wheat varieties in three different crop years, on chernozem soil, in long-term experiment. We examined the optimum fertilizer requirements and the maximum yield of the varieties. According to our results there were significant differences among the years: the yield of the winter wheat varieties changed between 1.4-6.1 t ha-1 in 2013, 3.8-8.6 t ha-1 in 2014 and 3.2-8.6 t ha-1 in 2015. The yield increasing effect of fertilization was significantly different in the tested years. The optimum level of fertilization was determined by, besides the genetic differences among the varieties, the crop year and the extent of fertilization. In milder winter months, due to the higher average temperatures, yields of winter wheat increased compared to an average crop year

Performance of wheat quality characteristics impacted by precrop and plant nutrition

Our field researches took place on the test farm of KIT Látókép of University of Debrecen, Centrefor Agricultural and Applied Economic Sciences, in growing seasons 2012/2013 and 2013/2014, after previouscropping of sunflower with control, N60+PK and N120+PKfertilizer treatments, with varieties Mv Csárdás and MvToldi, on chernozem soil, in long-term experiment. According to our data, variety and the effect of the crop yearstrongly affected the values of the leaf area index (LAI) and the yield. Due to the mild winter in growing season2013/2014 varieties had much larger assimilative surface, which caused increase in LAI and in the yield. Thereforethe natural nutrient utilization capability of the varieties significantly increased. Compared to the previous year, incontrol treatment we measured 250.0-270.2% higher yield due to the favourable effect of the crop year. Maximumyield (8.21 t ha-1) was measured with N60+PK fertilizer treatment with variety Mv Toldi. According to our results,in the more favourable crop year of 2013/2014, differences of the SPAD values between the N60+PK and N120+PKtreatments were minimum (changed between 2.8-6.3 units). It means that the effect of fertilization on SPAD valueshas reached its optimum level according to our yield results

Investigation of yield stability in maize on chernozem soil in a long-term experiment

Our studies were conducted at the RISF Látókép Experimental Farm of the Centre for Agricultural and Applied Economic Sciences of the University of Debrecen in the cropyears of 2007, 2008, 2009, 2010, 2011, and 2012 on chernozem soil. In the bicultural crop rotation, wheat and maize were set in a long-term experiment. The treatments were carried out at five nutrient levels (control, N60P45K45, N120P90K90, N180P135K135, N240P180K180). The effects of the nutrient treatments were studied by stability analysis according to Kan

(Journal of Documentation, Research and Professional Training,

Our research was carried out in a long-term experiment, in two different growing seasonsafter sunflower previous cropping with control, N60+PK and N120+PK fertilizer treatments, with genotypes GK Csillag and Mv Csárdás. According to the results, in the examined seasons, significant differences in productivity were observed between the varieties. In the more favourable crop year of 2013/2014 - with similar agricultural techniques and fertilization -, a considerable increase were detected in the control treatment (+248.8 – 263.7 %), with N60+PK (185.7 – 220.5 %) and with N120+PK (126.5 – 138.2 %) fertilizer treatments, compared to growing season 2012/2013. Based on the obtained data, due to fertilization and to the effect of the more favourable crop year, SPAD values were higher compared to those of growing season 2012/2013

Changes in soil nutrient supplying capacity in case of organic and NPK fertilized onion cultivations

In our comparative greenhouse experiment we examined the effect of EM- 1 microbial yield enhancing vaccine, an organic cow manure and an NPK fertilizer on the nutrient supllying capacity of the soil. the test plant was onoin (Allium cepa L.) and the applied soil was humic sandy soil