agricultural year usually commencing on 1 July. Crops cultivated in the Madras Presidency included cereals such as rice, corn, kambhu (Indian millet) and ragi as well as vegetables including brinjal, sweet potato, ladies' fingers, beans, onions, garlic and spices such as chilli, pepper and ginger along with vegetable oils made from castor beans and peanuts. Fruits cultivated included lime, banana jackfruit, cashew nuts, mangos, custard apples and papayas. In addition, cabbages, cauliflowers, pomelos, peaches, betel pepper, niger seed and millet were introduced from Asia, Africa or Europe, while grapes were introduced from Australia. The total cultivated area used for food crops was 80% and for cash crops, 15%. Of the gross area, rice occupied 26.4 percent; kambhu, 10 percent; ragi, 5.4 percent and Cholam, 13.8 percent. Cotton occupied , oilseeds, 2.08 million, spices,0.4 million and indigo, 0.2 million. In 1898, Madras produced 7.47 million tons of food grains from of crops grown on of ryotwari and inam lands, which supported a population of 28 million. The rice yield was 7 to 10 cwt. per acre, the cholam yields were 3.5 to 6.25 cwt. per acre, khambu, 3.25 to 5 cwt. per acre and ragi, 4.25 to 5 cwt. per acre. The average gross turnout for food crops was 6.93 cwt. per acre. Irrigation along the east coast is carried out mostly by means of dams across rivers, lakes and irrigation tanks. The main source of water for agriculture in the Coimbatore district were tanks. The Land Improvement and Agriculturists Loan Act passed in 1884 provided funds for the construction of wells and their utilisation in reclamation projects. In the early part of the 20th century, the Madras government established the Pumping and Boring Department to drill boreholes with electric pumps. The Mettur Dam, the Periyar Project, the Cudappah-Kurnool canal and the Rushikulya Project were the biggest irrigation projects launched by the Madras Government. Constructed below the Hogenakkal Falls on the Madras-Mysore border in 1934, the Mettur Dam supplied water to the western districts of the Presidency. The Periyar Dam (now known as the Mullaperiyar Dam) was constructed across the Periyar river in Travancore, near the border. This project diverted the waters of the Periyar river to the Vaigai River basin in order to irrigate the arid lands to the east of the Western Ghats. Similarly, the Rushikulya Project was launched to utilise the waters of the Rushikulya river in Ganjam.