Field experiment was done in Agriculture Experiment Station Lipki near Szczecin. As objects of studies were 1, 8, 9 and 10 years old blueberry plants cul-tivated on the acid brown soil belong to good rye complex. Before planting be-tween the rows of plants 10 cm layer of sawdust obtained from coniferous trees was spread and mixed with the soil. Growth and yielding of two varieties ‘Spartan’ and ‘Patriot’ irrigated and not irrigated. Plants were irrigated using dropping lines with emitters collocated every 30 cm with total efficiency of 2,4 l.h-1. Tensiometers show the need of irri-gation. Field and plants were irrigated when soil suction power was bigger than 0,01 MPa. Every year blueberry plants were fertilized with 60 kg N.ha-1 and doses of P and K depended on their concentration in soil. Total doses of water used for irrigation depended on yearly precipitation equal in 2005y. – 128 mm, 2006y. – 300 mm, 2007y. – 400 mm and in 2008y. – 200mm. Blueberry cv. ‘Spartan’ was more productive (9,62 t.ha-1) than ‘Patriot’ (8,3 t.ha-1). As effect of supplemental irrigation average crop of ‘Patriot’ variety increased by 8,36 t.ha-1 and ‘Spartan’ by 7,94 t.ha-1. Weight of 1000 fruits ...
Field experiment was done in Agriculture Experiment Station Lipki near Szczecin. As objects of studies were 8, 9,10 and 11 years old blueberry plants cul-tivated on the acid brown soil belong to good rye complex. Before planting between the rows of plants 10 cm layer of sawdust obtained from coniferous trees was spread and mixed with the soil. Evaluated growth and yielding of two varieties ‘Spartan' and ‘Patriot' irrigated and not irrigated. Plants were irrigated using dropping lines with emitters collocated every 30 cm with total efficiency of 2,4 l.h-1. Tensiometers show the need of irrigation. Field and plants were irrigated when soil suction power was bigger than -0,01 MPa. Every year blueberry plants were fertilized with 60 kg N.ha-1 and doses of P and K depended on their concen-tration in soil. Total doses of water used for irrigation depended on yearly pre-cipitation equal in 2006y.-300 mm, 2007y.- 40 mm and in 2008y. - 200 mm, 2009y.-127,5 mm Blueberry cv. ‘Spartan' was more productive (10,84 t.ha-1) than ‘Patriot' (9,68 t.ha-1). As effect of supplemental irrigation average crop of ‘Patriot' variety increased by 8,65 t.ha-1 and ‘Spartan' by 8,54 t.ha-1. Weight of 1000 fruits depended on variety, year of cultivation and ...
The aim of the study was to evaluate the efficiency of irrigation of highbush blueberry using different types of irrigation schemes. The experiment was conducted in 2009 - 2012 on 5 cultivars: ‘Bluecrop', ‘Chandler', 'Duke', ‘Nelson', ‘Spartan'. The irrigation treatments were as follows: (i) control (without irrigation), (ii) one drip line per row of plants (100%, reference water amount determined according to tensiometer readings), (iii) two drip lines per row of plants (125% of reference water amount), (iv) drip irrigation - two drip lines per row of plants (200% of reference water amount). In 2009 and 2010 the highest total length of one-year-old shoots was observed in the plants from control combination. In 2011 the number and total length of shoots in the all irrigation treatments was higher compared to the non-irrigated one. This was confirmed in 2012. The highest plant vigor was observed in case of ‘Bluecrop' and ‘Nelson' cultivars, whereas the lowest for ‘Chandler'. Yielding of blueberry was very varied. Only in 2012 the total yield obtained from irrigated plants was higher compared to the control ones. Among the cultivar tested, the highest yield was recorded for ‘Chandler', while the lowest one for ‘Spartan'. Fruits of ‘Chandler' cultivar ...
The paperwork includes estimate of irrigation on yield effect of highbush blueberry. The research was conducted in 2014-2016, on a small plantation located in Przyczyna Górna, in the Wschowski county, in the Lubuskie Province. The plantation's area was 800 m2. The article presents an analysis of five varieties of highbush blueberry: Patriot, Duke, Chandler, Elliott and Bluecrop. The frequency of irrigation and the amount of water supplied to the shrubs depended mainly on the distribution of atmospheric precipitation and the optimal humidity that the soil needs in growing blueberries. The need for irrigation was determined on the basis of soil water suction measurements using tensiometers. The shrubs were irrigated with a drip line with a spacing adjusted to the spacing of blueberry bushes.The annual dose of water used for irrigation were from 144 mm to 303 mm. The research showed that the average crop increase amounted to 167%, because of irrigation. In 2015, which was a wet year, the increase was 140% and in the average year (2014) was 193%. It was not connected only with amount of precipitation, but with the distribution of precipitation at growing season. The best yield was noted for Chandler (32% of yield), Patriot and ...
