GHIMIRE, S.; NAINABASTI, A.; SHARMA, M.; MARAHATTA, S.; GIRI, H. Effects of urea and poultry manure combination on yield and quality of different lettuce (lactucasativa l.) Varieties in Chitwan, Nepal. SAARC Journal of Agriculture, v. 17, n. 1, p. 201-210, 25 ago. 2019.