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Nutrient Budget and Economic Assessment of Blended Fertilizer Use in Kenya Tea Industry
المؤلفون المشاركون
Sitienei, Kibet
Kamiri, Hellen W.
Nduru, Gilbert M.
Kamau, David M.
المصدر
Applied and Environmental Soil Science
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-11-18
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
Kenya’s tea industry depends predominantly on imported compound NPK fertilizers to replenish nutrients removed through plucking.
These fertilizers cannot be easily manipulated for specific soils and tea clones.
They also frequently become hazardous within tea-growing environments.
In this respect, two fertilizer blends containing NPKS 25 : 5 : 5 : 4 + 9Ca + 2.62Mg and NPKS 23 : 5 : 5 : 4 + 10Ca + 3Mg with trace elements have been produced commercially in the country.
However, the extent to which the blended fertilizers may contribute to optimal economic gains without degrading the environment has not been determined.
This was the knowledge gap that this study seeks to address.
The goal of this study was to evaluate the economic efficacy of fertilizer blends with the aim of identifying optimal levels of application which would maximize tea productivity with minimal negative impacts on the environment.
The study hypothesized that blended fertilizers maximize productivity of tea clones with minimal environmental damage.
The fertilizer blends were evaluated in two study sites, i.e., Timbilil Estate in Kericho and Kagochi farm in Nyeri.
The sites were selected purposefully, one in the eastern and the other in the western tea-growing areas.
The trial was laid out in randomized complete block design with two fertilizer blends and the standard NPK 26 : 5 : 5 as control.
The treatments were applied at four fertilizer rates (0 (control), 75, 150, and 225 kg·N·ha−1·yr−1), replicated thrice.
Leaf samples were collected and analyzed for nutrient uptake as well as associated yields and economic trends.
The economic optimum nitrogen rate (EONR) was achieved at 75 kg·N·ha−1·yr−1 at Kagochi with all fertilizers, while at Timbilil, EONR was variable, between 75 and 225 kg·N·ha−1·yr−1 with fertilizer types.
This study has shown that, based on the economic point of view, Blend “A” was the most efficient and consistent fertilizer in production and economic returns across the two sites.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Sitienei, Kibet& Kamiri, Hellen W.& Nduru, Gilbert M.& Kamau, David M.. 2018. Nutrient Budget and Economic Assessment of Blended Fertilizer Use in Kenya Tea Industry. Applied and Environmental Soil Science،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1117650
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Sitienei, Kibet…[et al.]. Nutrient Budget and Economic Assessment of Blended Fertilizer Use in Kenya Tea Industry. Applied and Environmental Soil Science No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1117650
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Sitienei, Kibet& Kamiri, Hellen W.& Nduru, Gilbert M.& Kamau, David M.. Nutrient Budget and Economic Assessment of Blended Fertilizer Use in Kenya Tea Industry. Applied and Environmental Soil Science. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1117650
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1117650
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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