Can potassium fertilization, soil amendments and land leveling ameliorate rice production under salt affected soils conditions?

Amer, Megahed und Elhenawy, Ahmed und El-Ramady, Hassan R. (2015) Can potassium fertilization, soil amendments and land leveling ameliorate rice production under salt affected soils conditions? In: Jahrestagung der DBG 2015: Unsere Böden - unser Leben, 05.-10.09.2015, München.

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Kurzfassung

The significance of nutrient and water and its sustainability was and still one of the most emerging issues in agriculture. Therefore, it should be considered the maintenance, improvement and efficiently utilization of nutrient and water resources. In present work, the effect of land leveling, soil amendments including gypsum and/or compost application and K- fertilizer on rice production under salt affected soils conditions have been studied. The results showed that the highest yield of grain and straw of rice was obtained with using K-fertilization, land levelling rate 0.05 % of surface slope in the presence of gypsum plus compost application. Furthermore, this study suggests that, the efficiency of irrigation application increased from about 60 (for control) to 65 and 78 % for land leveling with 0.0 and 0.05 % slope, respectively. That means, the water loss rate from irrigation were 43, 36 and 32 %, respectively using the previous land leveling treatments. Thus, about 17 % from the applied water for irrigation could be saved under 0.05 % slope. On the other hand, the highest decrease rate in soil salinity (EC, dS m-1) and alkalinity (sodium absorption ratio, SAR) was 26 and 20 %, respectively for the traditional land leveling or the farmers’ practices. Therefore, sustainable rice crop production should be managed to overcome the soil salinity and alkalinity under low land rice cultivation, improving soil quality and its fertility.

Eintragstyp:	Konferenz- oder Workshop-Beitrag ("Berichte der DBG")
Stichwörter:	Rice, potassium, gypsum compost, land leveling
Benutzer:	Hassan El-Ramady
Hinterlegungsdatum:	13 Okt 2015 15:58
Letzte Änderung:	19 Mär 2018 17:13
URI:	https://eprints.dbges.de/id/eprint/1087

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