پديد آورنده :
روستايي، سولماز
عنوان :
تاثير پيش كشت و بقاياي گياهي بر برخي ويژگي هاي كيفي و تعيين شاخص كيفيت خاك
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
يازده،98ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
مجيد افيوني
استاد مشاور :
اميرحسين خوشگفتارنش
تاريخ نمايه سازي :
10/2/92
استاد داور :
محدعلي حاج عباسي، جهانگير عابدي كوپايي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Effect of Preceding Crops and Crop Residue on Some Qualitative Properties and Determine Soil Quality Index Solmaz Roostayi solmazroostayi@yahoo com Date of Submission 2013 01 20 Department of Soil Science Collage of Agriculture Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisor Majid Afyuni afyuni@cc iut ac irAbstract Wheat in Iran used to be cultivated in rotation with other crops periodically So therewas enough time for decomposition of plant residue Recently in most areas wheat iscultivated intermittently We should consider soil quality and organic matter to have asustainable agriculture Soil quality is the capacity of the soil to act as an alivecomponent in ecosystem There are several agronomic methods to improve qualitativeproperties of soil such as crop rotation and application of plant residues The plantresidue application methods have great effects on physical chemical and biologicalproperties of soil that lead to constant soil production The aims of this study were todetermine the effect of preceding crops and their residues on some soil qualitative physical chemical and biological properties and soil quality index in a farm setting This research includes two separate studies performed in two fields at Rudashtagricultural research station Pre crop treatments consisted of four different plantsspecies Sunflower Heliantus annus L Sorghum Sorghum bicolour L Trifolium Trifolium pretense L Safflower carthamus tinctorirus L and without pre crop planttreatments The preceding crops were harvested after 70 days and their residues were airdried chopped and incorporated in to the soil at seven ton dry matter weights perhectare Two weeks after addition of the preceding crops the Back Cross genotypes ofwheat were planted The wheat crops were harvested after 7 months Results showedthat using preceding crops and crop residues increased soil organic matter in bothtillering and harvesting stages in two fields with different agricultural sequence comparing with control treatment In the first field all treatments had more organicmatter than second field Using mentioned treatments preceding crops and cropresidues in both fields led to increased zinc concentration measured by DTPA andsoil Fe in both tillering and harvesting of wheat in comparison with control treatment Total nitrogen and phosphorus concenterations raised in the first field In second fieldall treatments had increased phosphorus and total nitrogen concenterations except forthe treatment of Safflower without residue Soil in the first field had much totalnitrogen DTPA zinc and phosphorus than the second one Totally in second study therewere better physical properties available water soil hydrolic conductivity and less bulkdensity than the first study In the first field the Soil Quality index in all treatments werehigher than the second field Key words Preceding crop Plant residues Qualitative properties Soil Quality Index Wheat
استاد راهنما :
مجيد افيوني
استاد مشاور :
اميرحسين خوشگفتارنش
استاد داور :
محدعلي حاج عباسي، جهانگير عابدي كوپايي
