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 Wysłany: Pon 10:30, 24 Sty 2011 Temat postu: Different water under drip irrigation methods on w |
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Different water under drip irrigation methods on water consumption in greenhouse peach, yield and water use efficiency
Do not 0.8949,0.9153, the correlation analysis, significant correlations reached the level of 0.01. N Lu mesh, flap water consumption than the Carpenter / mmWatezconsumption Figure 1 peach trees under drip irrigation water consumption and greenhouse production and water use efficiency in Fig. 1TherelationshipamongtheyieId, VCtJEandwaterconsumptionforpeachunderdripirrigationconditions2.4 drip irrigation water consumption in greenhouse peach can be seen from Figure 2, the different water conditions, the solar greenhouse peach in the annual growth cycle in the soil water consumption of the same trend, showed a double peak curve. From dormancy to fruit picking the first peak of emergence, peak values appear in the fruit development period,[link widoczny dla zalogowanych], average daily water consumption intensity is 1.58mm / d. Picking the fruit to be thrown off all the films was conducted after the severe pruning to crown recovery, sleep a second time on the water intensity of the peak,[link widoczny dla zalogowanych], the amplitude of the peak significantly increased, the peak appears in the flower bud differentiation period, daily water consumption can be up to 4.71mm / d. Show that the flower bud and fruit development period of the solar greenhouse peach trees one by one N 2-Head) I a, Qing: River CcuLTT Qin | E-1 ��-IICUUU �� E14-ll cut off the feet cut off the feet friends I delete a volume of 22 CHINA AGRICULTURAL UNIVERSITY critical water demand period,[link widoczny dla zalogowanych], this period of water shortage will have a significant impact on yield. Pan Ying shed �� {i i g good summer growth period of Emperor cIo 'Rights 8 �� Figure 2 peach trees under drip irrigation throughout the growth cycle of the water curve in Fig. 2TIIeOL) L ~ eofwaterconsumedforthepeachduringwholegrowingstageingreenhouse3 Conclusion and discussion peach tree is a perennial small tree, to shallow-rooted trees,[link widoczny dla zalogowanych], under cultivation in the more shallow root distribution, through drip irrigation under different water supply in greenhouse peach production and water use efficiency research, Peach in the greenhouse in the annual growth cycle, water consumption and water use efficiency and yield showed a quadratic relationship between, and the soil water consumption showed a bimodal curve, in which fruit development and flower bud of the water demand of the peak is 2 period, water demand is also a critical period 2, if the period of water shortage, will have a serious impact on production. Yield and water use efficiency from the view, too much or too little irrigation are not conducive to growth and water use efficiency,[link widoczny dla zalogowanych], irrigation in the treatment, T4 treatment the highest yield and water use efficiency, respectively 41521.5kg �� hm2 and 54 .46 ks / (mm �� hm2), respectively, than the no irrigation treatment 2.90 times and 2.61 times higher than the irrigation treatments were more high-T5 24.7%, 35.6%. Can be seen, the North China Plain region in greenhouse peach in the annual growth cycle in the 4 irrigation water, irrigation, respectively during the embryonic stage, flower bud differentiation, fruit and the crown long-term recovery rate for each irrigation amount was 45 ~ 75mm, is a more optimal irrigation.
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