牛糞配施生物炭對鹽漬化棉田棉花養(yǎng)分吸收及分配的影響
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Effects of Combined Application of Cow Manure and Biochar on Nutrient Uptakeand Allocation in Cottonin SalinizedCottonFields
HOUShengtong1，2，CHENG Junhui1，2，HUANG Cheng1，2，WANG Bao1，2 （1.CollegeofsoudEiont，ingiulualUivesitUiinjgin;2.iag ratoryofSoilandPlantEcologicalProcesss，XinjiangAgriculturalUniversity，Urumqi，Xinjiang83Oo52，China）
Abstract：Toexploretheefectsofcombinedapplicationofcatlemanureandbiocharoncottonnutrientabsorptionandalocation，as wellastodterminetheoptimalatiocompletelyrandomizedfieldexperimentwasconductedinsalinizedcottonfieldsinWensu county，Xinjiangfrom2O23to2O24.Sixtreatmentswereestablished：control（CK，conventionalfertliation），singlebiochar （BC100% ），single cattle manure 0M100% ），and three combination treatments（ BC70%+OM30% ， BC50%+OM50% ， 8C30%+ OM70 % ）.Nutrientuptake（nitrogen，phosphorus，potassum）inrots，stems，leaves，andbollswasanalyzed duringthebolloening stage，andyieldparametersweremeasuredtoevaluatetheefectsofindividualandcombinedaplications.Theresultsrevealedthat BC30% 0+ OM70%and BC50%+OM50% exhibited optimal performance.In 2024，nitrogen uptake in bols under BC30 %+ OM70% was increased by 183.4% compared with CK.Phosphorus uptake displayed significant interannual variation，with BC30%+OM70% enhancing total phosphorus uptake by 141.4% in 2023， while BC100% demonstrated a long-term gain of 152.1% in the following year. Potassium uptake predominantly accumulated in bolls（ 72.2% of total），and BCS0%+OMS0% improved boll potassium uptake by 216.5% （2023） and 231.1% （2024）.This study confirmed that biochar-cattle manure co-application optimized nutrient allocation dynamicsbetweenreproductiveandvegetativeorgans，ignificantlyimprovingnutrientusefcencyinsalinizedcotonfields.Tesnergistic effects provide a scalable strategy （BC OM= 3：/ or 1：1 ）for saline-alkali soil reclamation in arid regions. Key words： nutrient uptake; cattle manure; biochar;combined application; salinized cotton field
棉花作為我國重要的經(jīng)濟作物和紡織工業(yè)原料，新疆棉區(qū)貢獻了全國 90% 以上的產(chǎn)量。（剩余9534字）