Under the Persons and Family Code, without a marriage contract, the default property regime is separate property (Art 185) meaning that the presumption in law is that both members of the couple have a separate right to land or property acquired during their union as opposed to a joint right.
A marriage certificate is required for a marriage to be legal, but a marriage contract is optional. For couples married with a legal marriage contract, the default property regime is community property (Art. 191), meaning that property acquired or earned during the marriage belongs equally to both partners.
Very few rural women will both be formally married and have a marriage contract (e.g. because of lack of knowledge, education, funds). For most rural marriages, separate property will be the norm and men will have rights to property and women will not.