Field experiments was carried in ES Lipnik belonging to Western Pomera-nia University of Technology in Szczecin. Blueberry cv. ‘Patriot’ was cultivated in th years of 2000-2008 on the acid brown soil which is belong to IVb soil class. The soil was characterized by small amount of nutrient availability of phospho-rus and potassium and low acid reaction. Blueberry was cultivated in different water conditions: O-control (without supplemental irrigation), W- irrigated ob-jects. Plants were irrigated using dropping line with efficiency of 2,4 l.h-1 keeping soil moisture on the level of 0,01 MPa, registered by tensiometers. Also in these studies productivity of two and ten years old blueberry plants treated or not with supplemental irrigation were evaluated. Average crop of berries harvested in this experiment equal 7,61 t.ha-1 (tab.3). Yield from not irrigated plots equal only 4,92 t.ha-1. It appeared that sup-plemental irrigation gave proper soil moisture for blueberries and the good yield and the amount of used water particularly in June and July depended on natural precipitation. As effect of supplemental irrigation the average crop of berries equal 5,38 t.ha-1 and was 109,2% bigger comparing to control (without supple-mental irrigation). Productive effect of drip irrigation was in full correlation with amount ...
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 ...
Field experiment was done in the years 2003 and 2008 in the Agriculturae Experiment Station Lipnik near Stargard Szczeciński on the sandy soil, belongs to the good-rye-complex. The experiment was set up by split-plot method in 5 rep-lications. In this experiment the effects of mineral fertilizing and different soil moisture conditions on the yield of peach cv. ‘Inka’ was studied. The first factor of the study was supplemental irrigation (O – control, not irrigated: W – under crown irrigation). As second factor was different level of mineral fertilizing: 0NPK – (contro- no fertilizing), 1 NPK – 150 kg.ha-1 (40+50+60), 2 NPK-300 kg.ha-1 (80+100+120). Supplemental irrigation was used when the tensiometer have shown that water potential dropped to 0,01 MPa. Sward was between trees and in the rows the herbicidal farrows were kept. It was found that crop in-creased on both objects it means irrigated plots and fertilized. Average under in-fluence of irrigation gathered by 9,11 kg more fruits from 1 tree (42%) than from not irrigated plants. Yields of peach fruits dependent mostly on the supplemental irrigation applied from the April to August it means during critical stages for this plants. Crops of peach fruits increased under influence of 130 ...
In the years of 2003–2005 two-factors field experiment was set up in ES Lipnik near Stargard Szczeciński on the sandy soil (good rye complex) and a small retencion of usefulness water. The aim of the study was to determine the ef-fect of irrigation and mineral fertilization on the photosynthetic activity the leaves of some species of stone fruit trees. All experiments were done on the trees 4 years after planting. The experiments were designer by split-plot method in 7 replications with cherry, 5 replications with peach, and 4 replications with plum. Among the trees was the lawn but in the rows the selective herbicide fallow was kept. Two factors were considered: irrigation (O – control, W –under – crown ir-rigation) and mineral fertilization for cherry and plum 0 NPK – control (without fertilization), 1 NPK – 130 kg NPK•ha-1, 2 NPK – 260 kg NPK•ha-1; and for peach 0 NPK – control (without fertilization), 1 NPK – 150 kg NPK•ha-1, 2 NPK – 300 kg NPK•ha-1. Measurements of cherry, peach and plum leaves photosynthesis were done on well developer leaves on one year old branches. On basic of obtained results was found that photosynthetic activity of cherry peach and ...
Field experiments were done in 2002–2004 on sandy soil. Crop productivity of cherry (cv. ‘Kelleris’ i ‘Łutówka’) was tested on different water regime (O – con-trol, W – under-crown- irrigation) and various level of nitrogen doses: 0NPK, 1NPK – 130kg N.ha-1 (40+ 30+60), 2NPK – 260 kg N.ha-1 (80+60+120). The ex-periment was designe by split-plot method in 7 replications. Among the trees was the lawn but in the rows the selective herbicide was used. Irrigation was applied when tensiometer show that potential of soil water was lower than 0,01 MPa. De-pending on rainfall the amount of supplemental irrigation equel 27,5–61,3 mm of water during vegetation period. The paper also presents the results of study on the effect of rainfall and total irrigation rates during vegetation on the content N, P, K,Ca, Mg, sugar, vit. C and dry matter of cherry. The cultivars had similar production capabilities. Irrigation significantly increased the yield, by 1,96 t.ha-1 (36,5%). The highest yield of cherry (6,78 t.ha-1) was obtained from plants, which had been fertilized with 260kg N.ha-1. After three years of the research the content of N, P, Mg, sugar, vitamin C in fruit decreased compare to control plots. Higher mineral fertilization caused ...
Field experiment was carried out in the years 2003–2006 in ES in Lipnik near stargard (Szczecin region) on sandy soil belong to god-rye-complex. The experiment was set up by split-plot method in seven repetitions. Between the trees there was sward and in the rows the herbicidal farrows there kept. The aim of the studies was to determine the effect of under crown irrigation and mineral fer-tilization on the yield of plums cv. ‘Amersis’ and ‘Cacańska Rana’. The first fac-tor of the study was supplemental irrigation (0-control without irrigation: W- under crown irrigation). The second factor was different level of mineral fertiliz-ing: 0NPK, 1NPK – 130kg . NPK. ha-1 (40+30+60), 2NPK - 260kg . NPK. ha-1 (80+60+120). Supplemental irrigation was used when the tensiometer have shown that water potential of soil dropped lower than 0,01 MPa. For irrigation the ‘Hadar’ sprinkler were used (r=2m). Depending on rainfall the amount of ir-rigation from 21,0 to 37,9 mm there used. As effect of irrigation the yields in-creased by 19,2%. The highest increased (36,1%) was obtained in 2006 and the lowest (8,2%) in 2005. To evaluation the effects of mineral fertilizers the highest crops obtained from the plots fertilized with 2NPK ...
