Ber (Ziziphus mauritiana) is an important indigenous fruit. The farmers of western Rajasthan have adopted various commercial improved varities of ber at large scale. However, the attack of pests and diseases on ber/ber based cropping system is a major problem of ber growers. The low fertility level of the soil also have negative impact on progress of the above cropping system.

Agricultural production from the deltaic regions is the highest in countries like India. Study of groundwater quality, which is a function of physical and chemical parameters of the geological formations, is important as it will affect the agricultural production.

A solid phase extraction and gas chromatography with negative chemical ionization mass spectrometry in scan mode (GC-NCI-MS) method was developed to identify and quantify for the first time low levels of organochlorine pesticides (OCs) in plasma samples of less than 100 ?l from wild birds.

Experiments have been carried out on the impact of commonly used pesticides on the population of earthworms and enchytraeids in rice-wheat cropping system.