افضلی نیا, صادق, کرمی, علی داد. (1397). اثر خاک ورزی حفاظتی بر خصوصیات خاک و عملکرد ذرت در تناوب با گندم. مهندسی بیوسیستم ایران, 49(1), 129-137. doi: 10.22059/ijbse.2017.243058.664995
صادق افضلی نیا; علی داد کرمی. "اثر خاک ورزی حفاظتی بر خصوصیات خاک و عملکرد ذرت در تناوب با گندم". مهندسی بیوسیستم ایران, 49, 1, 1397, 129-137. doi: 10.22059/ijbse.2017.243058.664995
افضلی نیا, صادق, کرمی, علی داد. (1397). 'اثر خاک ورزی حفاظتی بر خصوصیات خاک و عملکرد ذرت در تناوب با گندم', مهندسی بیوسیستم ایران, 49(1), pp. 129-137. doi: 10.22059/ijbse.2017.243058.664995
افضلی نیا, صادق, کرمی, علی داد. اثر خاک ورزی حفاظتی بر خصوصیات خاک و عملکرد ذرت در تناوب با گندم. مهندسی بیوسیستم ایران, 1397; 49(1): 129-137. doi: 10.22059/ijbse.2017.243058.664995
اثر خاک ورزی حفاظتی بر خصوصیات خاک و عملکرد ذرت در تناوب با گندم
1بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس
2بخش تحقیقات خاک و آب، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس، سازمان تحقیقات، آموزش و ترویج کشاورزی
تاریخ دریافت: 15 مهر 1396،
تاریخ بازنگری: 30 مهر 1396،
تاریخ پذیرش: 09 آبان 1396
چکیده
این تحقیق در قالب طرح بلوکهای کامل تصادفی با پنج تیمار و چهار تکرار اجرا شد. تیمارهای تحقیق عبارت بودند از 1) کمخاکورزی، 2) کشت مستقیم گندم و ذرت به مدت چهار سال، 3) کشت مستقیم گندم در سال‌های اول، دوم و چهارم و کشت مرسوم آن در سال سوم وکشت مستقیم ذرت به مدت چهار سال، 4) کشت مستقیم ذرت در سال‌های اول، دوم و چهارم و کشت مرسوم آن در سال سوم وکشت مستقیم گندم به مدت چهار سال و 5) خاک‌ورزی مرسوم. نتایج نشان داد که روش‌های خاک‌ورزی حفاظتی باعث افزایش ذخیره رطوبت در خاک شدند (حداکثر 25%)، اما ماده آلی را افزایش ندادند. تیمارهای خاک‌ورزی حفاظتی در اکثر سال‌های انجام تحقیق باعث افزایش جرم مخصوص ظاهری خاک (حداکثر 13%) و کاهش نفود تجمعی و سرعت نفوذ آب در خاک (حداکثر 25%) شدند. عملکرد ذرت در اکثر سال‌های انجام تحقیق تحت تأثیر معنی‌دار روش خاک‌ورزی قرار نگرفت.
Effect of conservation tillage on soil properties and corn yield in the corn-wheat rotation
نویسندگان [English]
Sadegh Afzalinia1؛ Alidad Karami2
1Department of Agricultural Engineering Research, Fars Research and Education Center for Agriculture and Natural Resources, AERO
2Department of Soil and Water Research, Fars Research and Education Center for Agriculture and Natural Resources, AERO
چکیده [English]
TThe study was conducted using a randomized complete block experimental design with five treatments and four replications. Treatments were including: A) reduced tillage, B) wheat and corn direct seeding, C) corn direct seeding for four years, wheat direct seeding for the first two years and the fourth year, and conventional planting in the third year, D) wheat direct seeding for four years, corn direct seeding for the first two years and the fourth year, and conventional planting in the third year, and E) conventional tillage. Results showed that conservation tillage methods increased soil moisture retention (at most 25%) with respect to the conventional tillage but, they did not increase soil organic carbon. Conservation tillage methods especially direct seeding increased soil bulk density (at most 13%), and decreased soil accumulative filtration and infiltration rate (at most 25%). Meanwhile, tillage methods had no significant effect on corn yield for three growing seasons.
کلیدواژه‌ها [English]
Direct seeding, minimum tillage, Soil Organic Carbon
مراجع
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