کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4479447 1316443 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Response of vanilla (Vanilla planifolia A.) intercropped in arecanut to irrigation and nutrition in humid tropics of India
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Response of vanilla (Vanilla planifolia A.) intercropped in arecanut to irrigation and nutrition in humid tropics of India
چکیده انگلیسی

A 5-year field trial to assess the impact of microsprinkler irrigation and nutrition on vanilla grown as intercrop in arecanut plantation was conducted on a laterite soil. Pooled analysis indicated that microsprinkler irrigation at 1.0 Epan resulted in significantly higher green bean yield (842 kg ha−1) than 0.75 Epan (579 kg ha−1). Organic manure application in the form of vermicompost (720 kg ha−1) and FYM (768 kg ha−1) and recommended NPK (718 kg ha−1) produced green bean yield at par with recycling of gliricidia prunings (625 kg ha−1). Irrigation at 1.0 Epan proved superior by registering maximum benefit:cost (B:C) ratio of 2.25 compared to 1.62 at 0.75 Epan. The highest B:C ratio was obtained with recommended NPK (2.27) followed by recycling of gliricidia prunings (2.10), vermicompost (1.87), vermicompost + arecanut husk mulching (1.80) and FYM (1.64). The soil pH increased by 0.4 units in 2008 compared with the pre-experimental soil pH of 5.6 in 2004. Nutrition alone and in combination with irrigation had significant impact on soil pH. Organic manure application increased the soil pH (6.1–6.2) significantly over recommended NPK (5.6) at the end of experiment in 2008. Significant variation in soil organic carbon (SOC) was noticed due to different nutrition treatments. Application of vermicompost and FYM significantly increased the SOC content by 38–54% in 2008 over initial levels in 2004. Bray's P availability was influenced by nutrition and its interaction with irrigation. Application of FYM continuously for 4 years has resulted in significant increase in Bray's P content (41.3 mg kg−1) compared to other nutrition treatments (9.4–17.2 mg kg−1). Irrigation equivalent to 0.75 Epan (223 mg kg−1) increased the K availability significantly over 1.0 Epan (172 mg kg−1). The K availability was significantly higher in recommended NPK (416 mg kg−1) than in other organic treatments (98–223 mg kg−1) at 0–30 cm soil depth. Overall, vanilla responded well to irrigation and nutrition in arecanut-based cropping system with a better economic output and improved soil fertility.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural Water Management - Volume 97, Issue 7, July 2010, Pages 988–994
نویسندگان
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