Morpho-physiological characteristics and soil moisture relationships in some plant species of upland ecosystems [microform] by Chye-Tee Teoh

Aquatic toxicology and hazard assessment proceedings of the ... Annual Symposium on Aquatic Toxicology.

Aquatic toxicology and hazard assessment proceedings of the fourth Annual Symposium on Aquatic Toxicology held 16-17 Oct. 1979 in Chicago, Ill.

Table of contents only

Aquatic toxicology and hazard assessment proceedings of the fourth Annual Symposium on Aquatic Toxicology held 16-17 Oct. 1979 in Chicago, Ill.

Aquatic toxicology proceedings of the third annual symposium on aquatic toxicology

Adaptation of plants to water and high temperature stress by Turner, Neil C.

The NPK nutrition and moisture relation studies and their effects on quality of Virginia tobacco [microform] by Wiroatmodjo, Joedojono 1945-

The effect of pH, nutrient level and herbicide treatment on the growth of water-hyacinth (eichhornia orassipes (Mart.) solms [microform]. by Soekisman Tjitrosemito 1942-

Aquatic toxicology proceedings of the third annual symposium on aquatic toxicology

Table of contents only

Nitrogen and rice