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Volume 3 Number 1 January 2017

Nutritional Status and Sufficiency Ranges of Nutrients Based on DRIS Method of Onion Plants (Allium cepa L.) Grown in Sandy Soil


Authors: Abd El-Rheem Kh. M. ; Entsar M. Essa
Pages: 12-16
Abstract
The Diagnosis and Recommendation Integrated System (DRIS) method was employed to monitor the nutrients status of onion plants (Allium cepa L.) grown in sandy soil at winter season in the Nubaria, Behira Governorate. DRIS norms were established for various nutrient ratios obtained from high yield group of onion plants. Seventy two samples of bulb were analyzed for N, P, K, Fe, Mn, Zn and Cu content and bulb yield were recorded of onion farms fromNubaria, Behira Governorate. The forms of expression for different nutrients and their norms were selected, based on the highest variance ratio between low and high yielding group. The results showed that the average yield in the high-yielding group was 16.14ton ha-1, while the average yield in the low-yielding group was 11.18ton ha-1.  Theselected DRIS norms of onion plants grown in sandy soil wereP/N: 0.154, K/N: 0.348, N/Fe: 83.45, Mn/N: 0.0015, Zn/N: 0.0017, Cu/N: 0.006, P/K: 0.441, P/Fe: 12.74, P/Mn: 106.5, Zn/P: 0.011, Cu/P: 0.004, Fe/K: 0.035, Mn/K: 0.004, Zn/K: 0.005, Cu/K: 0.002,Fe/Mn: 8.382, Fe/Zn: 7.202, Fe/Cu: 20.34, Zn/Mn: 1.164, Cu/Mn:0.413, Cu/Zn: 0.355. The sufficient ranges for N, P and K were 1.987 - 2.769 %, 0.282 - 0.448 % and 0.704 - 0.944 %, respectively. As well as, the sufficient ranges for Fe, Zn, Mn and Cu were 258.3 - 312.7, 29.72 - 38.64, 34.96 - 44.46 and 11.79 - 16.51 ppm, respectively. Determine the optimum values in bulb are an important indicator of the high quality of the bulbs, becausethe relationship between of those nutrientsand all these vehicleswhich are expressive on bulbquality.

Does Improved Wheat Seed Adoption Benefit Farmers? Empirical Evidence from Southern Tigrai, Ethiopia


Authors: Berhe Gebregewergs Hagos ; Muuz Hadush
Pages: 1-11
Abstract
Agriculture in Ethiopia yet bases on small scale farming is experiencing frequent drought. The study examines, does improved wheat seed adoption benefit farmer’s wheat yield or not in Ofla woreda, Tigrai? A primary data sources from a survey of random sample 300 small scale farm households were gathered. Of which 100 were certified wheat seed adoptor farmers and the remaining 200 were non users. In dealing with propensity score matching (PSM) was applied. The average treatment effects on the treated (ATT) result revealed that improved wheat seed adoptor household’s earn 35 to 54 quintal of wheat yield per hectare at a cost of plowing 9,400 Birr larger in a single production year compared to non adoptors earn below 18 quintal at a cost of Birr 7,000. Adoption of certified wheat seed complementary with other packages is more recommendable to enhance wheat yield at small scale level.