scholarly journals Influence of the fertilization on the winter wheat in the crop rotations and in the long-term monoculture

2008 ◽  
Vol 54 (No. 5) ◽  
pp. 190-196 ◽  
Author(s):  
M. Babulicová
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Green Manure ◽  
Crop Rotations ◽  
Continuous Cropping ◽  
Organic Fertilization ◽  
Mineral Fertilization ◽  
Straw Incorporation ◽  
Control Variant ◽  
Grain Yield And Quality

The effect of mineral and organic fertilization on grain yield and quality of winter wheat in crop rotations and in continuous cropping was investigated. The study was conducted in Borovce (near Piešťany) on Luvi-Haplic Chernozem in the years 2002–2004. Mineral and organic fertilization of winter wheat growing in monoculture was more effective than mineral fertilization in crop rotations. In the case of winter wheat growing in monoculture, statistically higher grain yield (5.10 t/ha) was obtained in the variant with straw and green manure incorporation compared to the control variant (4.73 t/ha) and the variant with straw incorporation (4.75 t/ha). In the Solara variety, statistically higher number of plants before harvest was recorded in the variant with straw and green manure incorporation (194 plants per 1 m<sup>2</sup>) than in the variant with straw incorporation only (149 plants per 1 m<sup>2</sup>). As for the winter wheat grain in the sequence 2, based on the wet gluten content (30.3%) the Solara variety was classified in the elite class E in the variant with straw and green manure incorporation, and in the improving class A in the control variant.

scholarly journals The Grain Yield and Weed Infestation Rate of Winter Wheat by the Different Share of Cereals in Crop Rotations

2011 ◽  
Vol 57 (1) ◽  
pp. 31-40
Author(s):  
Mária Babulicová ◽  
Ľubomír Mendel
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Crop Rotation ◽  
Spring Barley ◽  
Organic Manure ◽  
Crop Rotations ◽  
Infestation Rate ◽  
Continuous Cropping ◽  
Mineral Fertilization ◽  
Weed Infestation

The Grain Yield and Weed Infestation Rate of Winter Wheat by the Different Share of Cereals in Crop Rotations The aim of the study was to compare the grain yield and weed infestation rate of winter wheat in crop rotations with 40, 60 and 80% share of cereals and in continuous cropping. The trial was situated in the area of continental climate. The trial had two parts. In the first part, there were crop rotations with 40, 60 and 80% share of the cereals. Two levels of fertilization were used: H1 mineral fertilization + organic manure Veget; H2 mineral fertilization only. In the second part, winter wheat and spring barley were grown in monoculture. Three variants of fertilization were used: 1 - mineral fertilization; 2 - mineral fertilization + straw of cereals were ploughed; 3 - mineral fertilization + straw of cereals + organic manure Veget were ploughed in the soil. In the years 2006-2009 the grain yield, thousand kernel weight and weed infestation rate of winter wheat in different crop rotations and by the continuous cropping were investigated. The statistically higher winter wheat grain yield (6.50 t ha-1) was recorded by 40% share of cereals in crop rotation than by 60% and 80% share of cereals (6.23 t ha-1). The grain yield of winter wheat by continuous cropping was lower by 2.24 t ha-1 (34.46%) than in crop rotation with 40% share of cereals. The weed infestation rate by 80% share of cereals in crop rotation was determined 2.4 times higher than by 40% share of cereals.

scholarly journals Grain yield response of some agronomy practices on contemporary common winter wheat cultivars (Triticum aestivum L.)

2018 ◽  
Vol 10 (4) ◽  
pp. 308-314
Author(s):  
M. Nankova ◽  
A. Atanasov
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Oilseed Rape ◽  
Yield Response ◽  
Wheat Cultivars ◽  
Mineral Fertilization ◽  
Previous Crop ◽  
Winter Wheat Cultivars ◽  
The Mean ◽  
Four Levels

Abstract. During 2014–2017, the influence of some main agronomy factors on the size of the resultant agronomic effect from their application to contemporary common winter wheat cultivars was investigated. The study was carried out in the experimental field (Haplic Chernozems soil type) of Dobrudzha Agricultural Institute – General Toshevo. The trial was designed by the split plot method, in four replications, on harvest area of 12m2. Cultivars Sadovo 1, Pryaspa, Kami, Kalina, Kiara, Kossara and Katarjina were grown after winter oilseed rape, spring pea, sunflower and grain maize at four levels of nutrition regime. The nutrition regime was differentiated depending on the previous crop. After spring pea, 30, 60 and 90 kg N/ha were used, and after the rest of the previous crops – 60, 120 and 180 kg N/ha. With the exception of the check variant all fertilizer variants were against background fertilization with 60 kg P2O5/ha and 60 kg K2O/ha. The positive reaction from the complex interaction of the tested agronomy factors was best expressed in 2015 – 2409.2 kg/ha, while during the extremely unfavorable year 2016, the effect was only 628.2 kg/ha. The independent and combined action of the mineral fertilization and the year conditions had determining influence on the size of the agronomic effect (AE). The positive effect from the mineral fertilization on the values of AE was accompanied by slight differentiation between the tested fertilization norms. Within this study, the highest mean value of AE was determined after fertilization with N180P60K60 – 2274.2 kg/ha. The variation in the mean size of AE depending on the type of previous crop was high – from 900.6 kg/ha (pea) to 2031.2 kg/ha (oilseed rape). The applied agronomy practices caused differentiation in the mean values of AE according to the type of cultivar. The cultivars Kiara (1796.1 kg/ha) and Kalina (1704.5 kg/ha) were with the highest size of AE. They exceeded the AE values of the two standard cultivars Sadovo 1 and Pryaspa by 30.26% and 23.62%, respectively. Averaged for the research, it was found that AE was in positive statistically significant correlation with grain yield and its physical properties.

Effect of integrated management of couch grass (Elytrigia repens) on soil quality and crop nutrition

1998 ◽  
Vol 130 (3) ◽  
pp. 323-328 ◽  
Author(s):  
Y. K. SOON ◽  
A. L. DARWENT
Keyword(s):  
Microbial Biomass ◽  
Soil Quality ◽  
Green Manure ◽  
Integrated Management ◽  
Red Clover ◽  
Crop Rotations ◽  
Continuous Cropping ◽  
Soil N ◽  
Couch Grass ◽  
Elytrigia Repens

The effects of suppressing couch grass (Elytrigia repens L.), through integrated management, on soil biological quality and N and P nutrition of barley (Hordeum vulgare L.) were evaluated in a field experiment (1987–92) on a Dark Grey soil in Alberta, Canada. The management practices consisted of combinations of herbicide application, crop rotations and tillage treatments. The 3-year crop sequences consisted of continuous barley, canola (Brassica rapa L.)–barley–barley, fallow–barley–barley, and barley or canola undersown with red clover (Trifolium pratense L.)–red clover green manure–barley. In 1992, the sixth year of the experiment, soil and plant samples were analysed for nutrient content. Treatments that consisted of spring and autumn tillage only did not suppress couch grass and produced low barley yields and N and P uptake. More N was immobilized in couch grass shoots and rhizomes and soil microbial biomass with these treatments than with similar herbicide-treated crop rotations. Tillage-plus-herbicide treatments effectively suppressed couch grass and enabled the barley crop to compete for soil N, however, both spring and autumn tillage were required for weed control. The fallow treatment impaired soil quality by reducing soil and microbial C and N, but produced similar barley yields as continuous cropping with tillage-plus-chemical control. Red clover ploughed in for green manure enhanced soil quality indicators such as soil and microbial biomass C, total and mineralizable soil N, and microbial N, but did not increase barley yield compared to continuous grain cropping.

EFFECT OF BENTONITE CLAY ON THE IRRIGATION NORM OF WINTER WHEAT

2018 ◽  
pp. 31-35
Author(s):  
S Abdurakhmonov ◽  
I Abdullayev
Keyword(s):  
Soil Moisture ◽  
Winter Wheat ◽  
Grain Yield ◽  
Irrigation Water ◽  
Bentonite Clay ◽  
Mineral Fertilizers ◽  
Npk Fertilizers ◽  
Yield Increase ◽  
Control Variant ◽  
Bentonite Clays

In the experiments conducted on typical serozem soils in the Tashkent region, two soil moisture levels of 60-70-60 and 70-80-70% of LFMC were studied, and two norms of mineral fertilizers NPK: 200-140-100 and 150-105-75 kg/ha with additional application of bentonite clays in the amount of 1500-3000-4500 kg/ha for plowing before sowing of winter wheat. The obtained data show that when watering with soil moisture 60-70-60% of LFMC with application of mineral fertilizers with NPK norms: 200-140-100 and 150-105-75 kg/ha and application of bentonite clays in the amount of 1500, 3000 and 4500 kg/ha, the saving of irrigation water in comparison with the control variant, respectively, amounted to 770 m3/ha, 810 m3/ha and 850 m3/ha, and the grain yield increase of 6,9-8,8-10,1 c/ha from the norm of mineral NPK fertilizers: 200-140-100 kg/ha, and an increase in the grain yield of 11,3-13,4-14,7 centner/ha from the norm of mineral fertilizers NPK: 150-105-75 kg/ha. Carrying out irrigations with soil moisture of 70-80-70% of LFMC with the use of mineral fertilizers together with bentonite clay in the amount of 1500-3000-4500 kg/ha, the saving of irrigation water in comparison with the control was 630 m3/ha, 790 m3/ha and 890 m3/ha, where the increase in the grain yield increased 6,3-8,9-10,7 c/ha with the norm of mineral fertilizers NPK: 200-140-100 kg/ha, and 10,4-12,9-14,6 centners per hectare with the norm of mineral fertilizers NPK: 150-105-75 kg/ha.

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