Effects of fertilizer combinations on rice yield in alluvial soil of Dong Hoa district, Phu Yen province
2014
Do Dinh Thuc; Hoang Thi Thai Hoa; Duong Cong Bang; Nguyen Thi Kim Hong
The experiment consists of 11 fertilizer treatments ranged in random complate block design RCBD with 3 replications, was conducted in two seasons including summer- autumn 2012 and winter-spring 2012 - 2013 on the alluvial soils in Dong Hoa district, Phu Yen commune aimed to determine a reasonable rate of fertilizer combination for rice. Research results have shown when application of 10 tons of manure + 100 kg N + 60 kg P2Os + 60 kg K2O + 500 kg lime/ha or 15 tons of manure + 75 kg N + 45 kg P2O5 + 45 kg K2O + 500 kg lime/ha obtained the highest theory and actual yields (82.7 quintals/ha - spring season and 78,5 quintals/ha - summer season). The highest gross margin were observed at these rates, VCR was ranging from 2.82 - 2.92. Some chemical characterisitcs of soil has been changed, specially at higher rate of manure application. Therefore, it is suggested that farmers should apply of 10 tons of manure + 100 kg N + 60 kg P2O5 + 60 kg K2O + 500 kg lime/ha or 15 tons of manure + 75 kg N + 45 kg P2O5 + 45 kg K2O + 500 kg lime/ha for OM2695-2 variety on alluvial soils in Hoa Xuan Tay commune, Dong Hoa district to achieve high yield and economic efficiency and also improving some chemical properties of soil after experiment.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Informatic Centre for Agriculture and Rural Development