23
DEC
2023

Effects of the share types of an inter-row cultivator at different working depths on weed control and plant growth in cotton production

S. Gürsoy1*, C. Özaalan2 1Department of Agricultural Machinery and Technologies Engineering, Faculty of Agriculture Dicle University, 21280 Diyarbakır, Turkiye 2Plant Protection Department, Faculty of Agriculture, Dicle University, 21280 Diyarbakır, Turkiye (Manuscript received 2 Sept
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29
MAR
2022

Qualitative evaluation of the norm of reaction of Bulgarian and foreign cotton cultivars

N. Valkova, M. Koleva* Field Crops Institute, 6200 Chirpan, Agricultural Academy, Sofia, Bulgaria (Manuscript received 14 October 2021; accepted for publication 16 January 2022) Abstract. The norm of reaction in qualitative aspect was studied in 31 Bulgarian and foreign cotton cultiva
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22
DEC
2021

Influence of duration of storage and pre-sowing electromagnetic treatment on the development of the primary root system of cotton seeds

M. Koleva*, M. Radevska Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 14 August 2021; accepted for publication 26 October 2021) Abstract. Seeds of five Bulgarian cotton varieties, stored for one and two years, were subjected to five pre-sowing electromagnetic trea
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30
SEP
2021

Breeding assessment of new promising cotton lines

V. Dimitrova, R. Dragov Field Crops Institute – Chirpan, 6200 Chirpan, Bulgaria (Manuscript received 7 June 2021; accepted for publication 2 August 2021) Abstract. Cotton breeding in Bulgaria is mainly aimed at improving the earliness, productivity and fiber quality of modern va
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27
SEP
2019

After-effect of foliar-applied herbicides for broad-leaved weeds on the primary germ weight of cotton seeds (Gossypium hirsutum L.)

Barakova, St. Georgiev   Field Crops Institute, 6200, Chirpan, Bulgaria   (Manuscript received 25 June 2019; accepted for publication 15 August 2019)   Abstract. The trial was carried out during 2013-2015, with twelve cotton cultivars (Gossypium hirsutum L.). Influence of herbici
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26
SEP
2017

Problems and achievements of cotton (Gossypium Hirsutum L.) weeds control

T. Barakova1*, G. Delchev2 1Field Crops Institute, 6200 Chirpan, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 2 June 2017; accepted for publication 17 August 2017) Abstract. Weed control in the cu
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29
JUN
2016

Selectivity and stability of vegetation-applied herbicides in cotton (Gossypium hirsutum L.)

T. Barakova1*, G. Delchev2 1Field Crops Institute, 6200 Chirpan, Bulgaria 2Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 16 May 2016; accepted for publication 26 May 2016) Abstract. An experiment was carried
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14
MAY
2014

Productivity of irrigation cotton cultivated under different inter-row spaces

I. Saldzhiev, A. Muhova Abstract. Field trial on cotton (Vega cultivar) was carried out during 2007–2011 on leached vertisols under irrigation regime of sprinkling – 75 % of the field moisture capacity (FMC) for the soil layer of 0 – 40 cm. The trial included the following variants: f
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14
MAY
2014

Rumi and IPK Nelina – new cotton varieties

A. Stoilova, Hr. Meluca Abstract. The new cotton varieties Rumi and IPK Nelina were tested in 2005–2010. Rumi variety resulted from the crossing of the Bulgarian breeding line 268 (Garant X Progress) to the American variety Deltapine 20. The Progress variety was obtained after the int
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07
MAY
2014

Potassium fertilization on cotton

Research studies on cotton potassium fertilization in the last years at the Cotton and Durum Wheat Research Institute – Chirpan, Bulgaria have been reviewed. The soil Eutric vertisols was well supplied with available potassium (31-43 mg/100 g soil). The effect of K application was not
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