کاربرد سطوح مختلف بیوچار و آبیاری بر رشد، محصول و اجزای محصول گیاه باقلا

نوع مقاله: مقاله پژوهشی

نویسندگان

1 بخش مهندسی آب، دانشکده کشاورزی، دانشگاه شیراز، شیراز، ایران

2 بخش علوم خاک، دانشکده کشاورزی، دانشگاه شیراز، شیراز، ایران

چکیده

در یک آزمایش گلخانه‌ای تاثیر 4 سطح (صفر، 25، 50 و 75 تن در هکتار) بیوچار تولید شده از کاه و کلش گندم و 3 سطح آبیاری (100، 75 و 50 درصد نیاز آبی گیاه) در قالب طرح کاملاً تصادفی بر رشد و محصول گیاه باقلا مورد بررسی قرار گرفت. نتایج نشان داد که زمانی که گیاه باقلا رشد کامل خود را کرده، بیشترین مقدار ارتفاع گیاه و شاخص سطح برگ در تیمار بیوچار 25 تن در هکتار مشاهده شده است. همچنین، بیشترین مقدار محصول باقلا در سطح 25 تن در هکتار بیوچار بدست آمد. یافته‌های تیمار آبیاری نشان داد که با اعمال تنش آبی، ارتفاع بوته و شاخص سطح برگ کاهش یافته است. همچنین با اعمال تنش آبی رشد و محصول باقلا نسبت به تیمار شاهد کاهش معنی‌داری را نشان داد. لذا با توجه به نتایج می توان نتیجه گرفت که استفاده از بیوچار (به عنوان یک ماده اصلاح کننده خاک) در سطوح پایین اثر مثبت بر محصول آن داشته باشد. همچنین استفاده از رژیم آبیاری در سطح 75 درصد آبیاری کامل و به ازای سطح بیوچار 25 تن در هکتار به دلیل عدم کاهش معنی‌دار محصول گیاه باقلا، توصیه می‌گردد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Different levels of biochar and irrigation influence on faba bean growth, yield and yield components

نویسندگان [English]

  • Samaneh Poormansour 1
  • Fatemeh Razzaghi 1
  • Ali Reza Sepaskhah 1
  • Ali Akbar Moosavi 2
1 Water Engineering Department, School of Agriculture, Shiraz University, Shiraz, Iran
2 Soil Science Department, School of Agriculture, Shiraz University, Shiraz, Iran
چکیده [English]

Effect of four levels of biochar (0, 25, 50 and 75 ton ha-1) produced from wheat straw and three levels of irrigation (100, 75 and 50 % of crop water requirement) on growth and yield of faba bean was determined in completely randomized design in the greenhouse. The result showed that after faba bean reached maturity, the maximum plant height and leaf area index obtained in 25 ton ha-1 biochar treatment. Also, maximum faba bean yield was also obtained in 25 ton ha-1 biochar. The result of irrigation regimes treatments showed that the crop height and leaf area index decreased by application of deficit irrigation. Faba bean growth and yield were also significantly declined under deficit irrigation. Therefore, it can be concluded that application of biochar (as a soil amendment) in low levels may have a positive effect on crop yield and its components. Further, under biochar application of 25 ton ha-1, the use of deficit irrigation in 75% of crop water requirement is recommended as it did not cause any significant decline in crop yield.

کلیدواژه‌ها [English]

  • Biochar
  • Deficit irrigation
  • leaf area index
  • faba bean yield components
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