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^: 3109 2012 2
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^: ., 2012; N 2. - . 46-48
^: 2012
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^: , . F1. ( NPK 50, 60 70 /) (80 90% () 0,3 0,5 , .. " - " " - ") . () (62-84%), ( 50%), ( 55,0%) ( 70%). (13,4%), . 80-80% 90-90% , . NPK 165, 65 65 / 0,3-0,5 80-90% 90-90% , 0,5 90-90% .

aref2 There have been considered the results of experimental researches carried out in the Volgograd region on parthenocarpic cucumber hybrid Masha F1. Studied the influence of factors of mineral nutrition (applying NPK for planned yields 50, 60 or 70 t/ha) and soil humidity (80 and 90% of the least humidity rate LHR) in the layers 0.3 or 0.5 m deep, including by varying with periods "transplanting-efflorescence) and "efflorescence - the last harvesting") on the intensity of production processes of cucumber crops under drip irrigation. Against the background of different pre-watering humidity thresholds under drip irrigation the level of mineral nutrition had an essential influence on the formation of leaf area throughout almost the vegetation period (62-84%), on the photosynthetic potential of cucumber agrocoenosis (about 50%), on the net productivity of photosynthesis (about 55.0%) and the average daily gain of dry biomass (above 70%). In the accumulation of dry matter soil moistening was not of great importance (13.4%), and the intensity of biomass formation of sowings and their total water consumption were not much interdependent. Changing the pre-watering thresholds of moisture content from 80-80% to 90-90%, as well as differentiation of moistening horizons noticeably increased the accumulation of dry matter throughout the fruit bearing period. The maximum values of the average daily gain of dry matter were obtained against the background og NPK 165, 65 and 65 kg/ha on differentiated horizons 0.3-0.5 m with pre-watering humidity thresholds 80-90% pre-watering humidity thresholds 90-90%, respectively, as well as on constant horizon 0.5 m with high 90-90% pre-watering humidity thresholds

^TRN: 1282958
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