References
- Baba , A. 1986 . Nutrio-physiological characteristics of tulip and method of fertilizer application in tulip bulb production . Fert. Sci. , 9 : 65 – 121 .
- Baba , A. and Ikarashi , T. 1967 . Mineral nutrition of tulip flowering phase. I . Shokubutu Seiri , 6 : 47 – 55 .
- Baba , A. and Ikarashi , T. 1968 . Mineral nutrition of tulip flowering phase. II . Shokubutu Seiri , 7 : 13 – 20 .
- Baba , A. , Ikarashi , T. and Okumura , N. 1979 . Concentrations of mineral nutrients in bulb of tulip cropped in dune fields and secondary cropped paddy fields in Niigata Prefecture . Bull. Fac. Agric. Niigata , 31 : 81 – 89 .
- Baba , A. , Ikarashi , T. and Yokoyama , S. 1968 . Concentration of some mineral nutrients in tulip bulbs produced by different growers in Niigata Prefecture . Niigata Agric. Sci. , 20 : 75 – 80 .
- Ito , H. , Kato , T. and Toyota , T. 1960 . Metabolism of tulip bulbs as related to thermoperiodicity . J. Hort. Assoc, Jpn. , 29 : 323 – 330 .
- Ohyama , T. , Ikarashi , T. and Baba , A. 1985 . Nitrogen accumulation of tulip plants (Tulipa gesnriand) . Soil Sci. Plant Nutr. , 31 : 581 – 588 .