تاثير آبياري بر راندمان كوددهي و عملكرد در باغات پسته

Influence of irrigation on efficiency of fertilization and yeild in pistachio orchards

اين تحقيق به منظور بررسي امكان استفاده از كودهاي شيميايي از طريق سيستم آبياري قطره اي و دستيابي به اثرات متفابل آب و كود، در يكي از باغات پسته رفسنجان در قالب كرت هاي كامل تصادفي با 4 تكرار و 4 تيمار به اجرا درآمد ( T1 = عرف باغدار، T2= مصرف كود بر اساس آزمون خاك، T3= 30% كمتر از مصرف بهينه و T4 = 30% بيشتر از مصرف بهينه)، تيمارهاي كودي فوق در يك قطعه ديگر با روش آبياري سطحي نيز اعمال شدند تا روش قطره اي با آن مقايسه گردد. نتايج نشان داد كه عملكرد در آبياري قطره اي و سطحي هيچ تفاوت معني داري نداشته،و مي توان در باغاتي كه به روش سطحي تا 9000 متر مكعب آبياري مي شوند به صورت قطره اي اين مقدار را به نصف و حتي كمتر كاهش داد و هر ساله در مصرف آب به روش قطره اي صرفه جويي كرد.

This research was carried out to study the possibility of chemical fertilizers application by trickle irrigation system in a pistachio orchard in Rafsanjan using a randomized complete design with 4 replications and 4 treatments (T1: Application of fertilizer according to conventional methods.T2: Optimum application of fertilizer according to soil testing. T3:30%less than optimum use. T4:30% more than optimum use).Upon fertilizer treatments were carried too in another plot with surface irrigation to compare with trickle system. In attention to number of treatments and replications in this design in each plot was selected 16 trees and in each row 16 trees that were almost same in measure, were recognized for main treatment trees.in each plot sample of soil was supplied in compound from depth 0-30,30-60,60-90 cm and based on results of analysis was recommended optimum fertilizer. The results of analysis was indicated yield didn’t have any significant difference among trickle and surface irrigation and in orchards that irrigate with surface irrigation to 9000m3 can be used from trickle irrigation that make decrease irrigation into half and even less and every year can be economized in use of water stylize trickle irrigation.