Agricultural Practices and Land Use

This is the correct answer. Third step is the replenishment of nutrients in the soil. 

Cow dung and organic manure were used in the traditional farming, which resulted in low yields.

This is the correct answer. The green revolution is associated with higher yield of crops through usage of chemical fertilisers and pesticides. It is also associated with loss of soil fertility due to excessive usage of chemical fertilisers and pesticides, and reduced water table due to excessive use of irrigation.

Organic farming is a production system of crops which avoids the use of synthetic and chemical inputs like fertilizers, pesticides, growth regulators and livestock feed additives.

Deep litter (floor-based with bedding material) and cage systems (wire cages) are two primary housing methods in poultry farming. They are not associated with dairy, pigs, quali (likely a typo for quail), or sheep rearing. These systems are specifically designed for broiler or layer chicken production.

All are soil conservation methods.

Yes, because of broader tyres, a tractor exerts less pressure over the ground as pressure decreases with increase in surface area or contact, and hence easily runs over the muddy field.

Cover crops are interested in sustainable agriculture as many of them improve the sustainability of agroecosystem attributes and may also indirectly improve qualities of neighboring natural ecosystems.

In domestic gardens, methods of weed control include covering an area of ground with a material that creates a hostile environment for weed growth, known as a weed mat. Several layers of wet newspaper prevent light from reaching the plants beneath, which kills them.

Organic farming emphasizes natural methods over synthetic chemicals. Using biological predators like ladybugs to control pests is a core organic technique. Growth regulators, inorganic fertilizers, and malathion (a pesticide) are all synthetic/chemical inputs prohibited in organic farming.

Good plantation with adequate vegetation cover is the most effective soil conservation method because plant roots bind soil particles and prevent erosion. Low rainfall, low temperature, and restricted human activity are not practical or primary conservation methods - vegetation is key.

Rainfed farming is indeed complex, diverse, and risk-prone (making statements 1 and 2 true). However, statement 3 is false - rainfed farming is characterized by LOW levels of productivity and LOW input uses, not high productivity.

Third statement is incorrect.1, 2 and 4 statements are correct. 

Lay farming is a type of agrostological method.

Protection of soil erosion by preparation of field with alternate furrows and ridges is called contour farming.