Women contribute in agriculture from sowing seeds and till harvesting. She works as labourer. Well that not exactly to look at, but most of women do this work as unpaid, double shift.
For further reading I will suggest you to study
1- Women's Paid Domestic Work and Rural Transformation ( A study in Suth Gujarat) by Uma Kothari
2- High Participation, Low Evaluation wome and work in Rural Haryana by Prem Chowdhry