نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه زراعت و اصلاح نباتات، واحد سنندج، دانشگاه آزاد اسلامی، سنندج، ایران

2 دانش‌آموخته کارشناسی ارشد، دانشکده کشاورزی، واحد کرج، دانشگاه آزاد اسلامی، کرج، ایران

3 استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران

4 دانش‌آموخته دکتری، گروه زراعت و اصلاح نباتات، واحد سنندج، دانشگاه آزاد اسلامی، سنندج، ایران

چکیده

تأثیر کشت توأم ذرت شیرین و بامیه بر شاخص­های رشد و عملکرد خیار، در سال زراعی ۱۳93-۱۳92 در شهرستان روانسر از توابع کرمانشاه در قالب طرح بلوک­های کامل تصادفی با سه تکرار مورد آزمایش قرار گرفت. تیمارها شامل: کشت خالص خیار (۱۰۰ درصد خیار)، کشت توأم خیار و ذرت (75 درصد خیار + 25 درصد ذرت، 50 درصد خیار + 50 درصد ذرت، 25 درصد خیار + 75 درصد ذرت) و کشت توأم خیار و بامیه (75 درصد خیار + 25 درصد بامیه،  درصد خیار + 50 درصد بامیه، 25 درصد خیار + 75 درصد بامیه) بود. در میان تیمارهای مختلف، بیشترین طول ساقه (276 سانتی­متر)، حداکثر تعداد میوه در بوته (33/44) و بیشترین عملکرد میوه (41344 کیلوگرم در هکتار) در تیمار با ترکیب کشت 25 درصد خیار + 75 درصد ذرت به دست آمد. بیشترین تعداد شاخه جانبی نیز (6 شاخه در بوته) از ترکیب کشت 25 درصد خیار + 75 درصد بامیه ثبت شد. بر اساس نتایج بدست آمده، نسبت برابری زمین (LER) در ترکیب کشت توأم، بیشتر از 1 بود، به نحوی که بیشترین LER کل (24/1) در تیمار با ترکیب کشت 75 درصد خیار + 25درصد ذرت، حاصل گردید. سودمندی اقتصادی کشت توأم در هکتار تحت تاثیر تیمار ها با ترکیب­های مختلف کشت قرار گرفت، به نحوی که بیشترین سودمندی اقتصادی کشت توأم در تیمار با ترکیب کشت 25 درصد خیار + 75 درصد ذرت بدست آمد. کمترین سودمندی اقتصادی کشت توأم در تیمار با ترکیب کشت 25 درصد خیار + 75 درصد بامیه بدست آمد، که از کشت خالص نیز کمتر بود.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of wind breaking of sweet corn and okra on growth indices and yield of ‎cucumber in strip intercropping system

نویسندگان [English]

  • Ezzat Karami 1
  • Adel Almasi 2
  • Abdolkarim Kashi 3
  • Adibeh Etminani 4

1 Assistant Professor, Department of Agronomy and Plant Breeding, Sanandaj Branch, Islamic Azad ‎University, Sanandaj, Iran

2 M. Sc. Graduate, Karaj Branch, Islamic Azad University, Karaj, Iran

3 Professor, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran

4 Ph. D. Graduate, Department of Agronomy and Plant Breeding, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran

چکیده [English]

To investigate the effect of intercropping corn/cucumber and okra/cucumber on growth indices and yield of cucumber, an experiment was carried out in a randomized complete block design with three replications, during 2013-2014 cropping year, in Ravansar region in Kermanshah province. Treatments included: intercropping corn/cucumber (cucumber %100, cucumber %25 + corn %75, cucumber %50 + corn %50, cucumber %75 + corn %25) and okra/cucumber (cucumber %100, cucumber%25 + okra %75, cucumber %50 + okra %50, cucumber %75 + okra %25). Among the different treatments, cucumber %25 + corn %75 treatment had the highest plant length (276 cm), maximum number of fruit per plant (44.33) and the highest fruit yield (41344 kg/ha). Maximum number of lateral stem (6 per plant) was obtained from cucumber %25 + okra %75 treatment. Results indicated that land equivalent ratio (LER) was greater than 1.0, when both intercropping corn/cucumber and okra/cucumber crops were planted. The LER of corn/cucumber intercropping was 1.24, when cucumber %75 + corn %25 was planted. Economic efficiency of intercropping was affected by different intercropping combinations. The highest economic efficiency was obtained from cucumber %25 + corn %75 treatment. Moreover, in the cucumber %25 + okra %75 combination, economic efficiency was significantly less than cucumber pure crop.

کلیدواژه‌ها [English]

  • economic efficiency
  • intercropping
  • Land equivalent ratio
  • Monocropping
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