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结果 931-940 的 2,185
On-farm comparative production and reproduction performance evaluation of Sasso, Sasso-RIR, Koekoek and Improved Local chicken breeds in Bako Tibe and Dano districts of western Oromia, Ethiopia 全文
2021
Fekede, G. | Tadesse, Y. | Esatu, Wondmeneh | Dessie, Tadelle
Relationship between normalized difference vegetation index (NDVI) and forage biomass yield in the Vakinankaratra region, Madagascar 全文
2014
Rahetlah B.V. | Salgado P. | Andrianarisoa B. | Tillard E. | Razafindrazaka H. | Le Mezo L. | Ramalanjaona V.L.
Dairy cow production is an important livestock activity in the highlands of Madagascar and specifically in the Vakinankaratra region. Despite the increase of global milk production over the last decades, cow productivity remains low due to both quantity and quality feed constraints. Elephant grass and Italian ryegrass are the most cultivated forage grass, during the wet and warm season and the dry and cool season, respectively. An experiment under field conditions was carried out to evaluate the ability of the satellite-derived normalized difference vegetation index (NDVI) to develop a tool for estimating biomass yields of Elephant grass and Italian ryegrass. Results showed moderate to strong but significant relationship between plant height and biomass yield (R² = 0.64 to 0.92), between NDVI and biomass yield (R² = 0.52 to 0.73) and between NDVI and plant height (R² = 0.61 to 0.74) of Elephant grass and Italian ryegrass, respectively. These results suggest that NDVI has potential to provide a tool for dynamic monitoring and management of pastureland forage production. (Résumé d'auteur)
显示更多 [+] 显示较少 [-]From taboo to commodity: history and current situation of cavy culture in the Democratic Republic of the Congo 全文
2014
Maass, Brigitte L. | Metre, TK | Tsongo, F | Mugisho, AB | Kampemba, FM | Ayagirwe, R.B.B. | Azine, PC | Bindelle, J. | Chiuri, Wanjiku L.
Improved design of water control structures
1985
Chaudhry, A.A. | Shakoor, H.A.
Organizing and testing water user's associations as self sustaining enterprises
1985
Khan, M.A. | Alvi, A.
Use of amended saline sodic water for crop production on gypsum treated and untreated Gandhra saline-sodic soil [Pakistan]
1985
Hussain, T. | Nabi, G.
Estimation of salt balance in watercourses command areas [Pakistan]
1985
Awan, Q.A. | Akbar, S.
Irrigation application efficiencies in SCARP [Salinity Control and Reclamation Project - Pakistan] areas
1985
Awan, Q.A. | Akbar, S.
Low cost techniques for lining the watercourses
1985
Chaudhry, A.A. | Shakoor, H.A.
Economic combination of different levels of irrigation and fertilizer for obtaining maximum yield of maize under farmer's conditions
1985
Ali, N. | Qamar-uz-Zaman