It will greately depends of which type of soils and which content of Org. Mater it has. Normaly when the O Mater conyent is high the sulfur provision is good.

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Because of central role of S and N in the synthesis of proteins, the supplies of these nutrients in plants are highly inter-related. Sulphur and nitrogen relationships were established in many studies (Zhao et al., 1993; McGrath and Zhao 1996; Ahmad et al., 1998; and Jamal et al., 2005; 2006a; 2010) in terms of dry matter and yield in several crops. Barney and Bush (1985), while working on tobacco plant concluded that there was apparent accumulation of one nutrient when the other nutrient was limited and that accumulated nutrient was used in protein synthesis when the treatment were reversed. A shortage in the S supply to the crops lowers the utilization of the available soil nitrogen, thereby increasing nitrate leaching (Likkineni and Abrol, 1994). O'Connor and Vartha (1969) observed that large dose of gypsum reduced the yield of hay when N status in soilwas unsatisfactory. Likewise, large dose of N created S deficiency (Eppendorfer, 1971). It has been established that for every 15 parts of N in protein there is 1 part of S which implies that the N:S ratio is fixed within a narrow range of 15:1. The N:S ratio in the whole plant in general is 20:1 (Cram, 1990). Clarkson et al., (1989), while working on barley plants, demonstrated that at the whole plant level the apparent matching of supply to demand is accompanied by an apparentlinkage of SO4 2- to NO3- uptake. Sulfur and nitrogen both are required for the synthesis of protein, therefore, the ratio of total N to total S in plant tissue can reflect the ability of N and S in protein synthesis (Brunold and Suter, 1984). Thus, a change in the ratio of reduced-N to reduced-S (NR/SR), which is a reflection of the amount of S amino acids, suggests that protein metabolism has been significantly altered and has important implications for protein quality (Friedrich and Schrader, 1978). Source ; Jamla et al .2010,AJCS 4(7):523-529 (2010)...PDF enclosed fro further reading...

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