عنوان

بررسی اثرات مدیریت خاک کود سبز بر خواص میکرومورفولوژیک، فیزیکی و شیمیایی و قابلیت تولید در ایستگاه تحقیقات کشاورزی دیم مراغه

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‭۶۹پ‬

.Language of Text, Soundtrack etc

per

Title Proper

بررسی اثرات مدیریت خاک کود سبز بر خواص میکرومورفولوژیک، فیزیکی و شیمیایی و قابلیت تولید در ایستگاه تحقیقات کشاورزی دیم مراغه

First Statement of Responsibility

/سیدبهمن موسوی

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تبریز: دانشگاه تبریز

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‮‭۱۵۹‬ ص‬

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نمودار، جدول، عکس

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چاپی

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واژه نامه بصورت زیرنویس

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کتابنامه ص.: ‮‭۱۴۲-۱۵۵‬

Dissertation or thesis details and type of degree

دکتری

Discipline of degree

مهندسی کشاورزی- خاکشناسی

Date of degree

‮‭۱۳۸۹/۰۶/۲۵‬

Body granting the degree

تبریز: دانشگاه تبریز

Text of Note

.‮‭higher R squire (R۲ = ۰.۹۰) and lower standard error (SE=۰.۳۰). This model could predict about ۹۰ of variation in soil water infiltration rate in all of the treatments. Higher infiltration rate at first ۵ minute was belong to C/N=۳۰ with ۴۶.۸ mm.hr-۱ and after ۳۰ min was belong to C/N=۳۶ with ۲۰.۴ mm.hr-۱ was. That micromorpholigical study results for C/N=۳۶ and C/N=۳۰ conformed this point. Data from wheat plant investigation revealed that higher mean yield ۳۰۳۱ kg.ha-۱ and lower one ۲۱۰۹ kg.ha-۱ belong to C/N=۱۰ (۳۳۷ kgN. ha-۱) and C/N=۳۶ treatments respectively. Application plant characteristic path analysis results for grain yield showed that head length, plant weight and the level of nitrogen used with green manure had most positive effect on grain yield production. The effect of application of green manure with nitrogen fertilizer on wheat crop properties showed that number of head in m۲ , number of seed in head, number of fertile tiller, ۵۰ flag leaf weight and ۱۰ plant weight increased ۸, ۷, ۲۸, ۳۲ and ۴۱ respectively in respect to control. Micromorpholigical study showed that the decomposition degree of plant residual was higher in C/N=۱۰ and C/N=۲۰ treatments in respect to other treatments and lower decomposition degree was belong to green manure without N fertilizer (C/N=۳۶) that explain C/N ratio effect on plant residual decomposition . About the shape and developed of aggregates in surface horizon in different treatments it seems that spheroidal and angular peds in C/N=۱۰ treatment had a more developed pedality in respect to others. In all profiles with different treatments micromorphological study indicated the presence of straiated, speckled and strial b-fabric, different type of related distribution patterns and different pedofeatures including coating, infilling , crystals, intercalation and different microstructures. Ultimately increasing with depth and C horizon appearance, we can see without microstructure condition‬ ‮‭s‬ب‮‭This study was fulfilled to investigate the effects of soil-green manure management on variation trend of soil micromorphological, physical, chemical and it's productivity. For this experiment we cultivated autumn rye as green manure in rotation with wheat (three years). Rye comeback to soil in heading stage with four nitrogen levels (C/N=۱۰, C/N=۲۰, C/N=۳۰, C/N=۳۶) plus control with ۴ blocks. Wheat cv. Sardari was cultivated in the same year autumn season. This study carried out with Randomized Complete Block Design (RCBD) in Maragheh Dryland Agricultural Research Institute (DARI) station. Our data showed that green manure application with nitrogen fertilizer increased soil moisture content in ploughing layer (۰-۲۰cm). Higher field capacity and higher available water, lower bulk density and lower permanent wilting point belong to green manure application with ۱۰۳ kg.ha-۱ N application (C/N=۲۰). Whereas green manure application without nitrogen fertilizer or with nitrogen application increased soil moisture content (۱۴-۶۰ ) in respect to control. That the highest moisture belong to C/N=۲۰ treatment. Infiltration study showed that higher mean cumulative infiltration (۵۹mm) in measurement time belong to C/N=۳۶ treatment. Among the soil water infiltration predictable model, adjusted Kostiakov model was determined as a best model because of it‬

Soil Management

Green Manure

Soil Micromorphological

Physical and Chemical Properties and Soil Productivity

موسوی، سید بهمن

جعفر زاده، علی اصغر، استاد راهنما

نیشابوری، محمدرضا، استاد راهنمای همکار

اوستان، شاهین، استاد مشاور

Public note

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