Abstract: The invention relates to derivatives of (1-cyanocyclopropyl)phenylphosphinic acid of the formula (I) and to salts thereof, of the formula (II), for enhancing stress tolerance in plants to abiotic stress, preferably to drought stress, especially for enhancing plant growth and/or for increasing plant yield.

Abstract: The novel compounds of formula I: wherein Het represents an optionally substituted, optionally benzofused nitrogen containing 5- or 6-membered heteroaromatic group; R1 represents an alkyl, alkoxyalkyl or cycloalkyl group; R2 each independently represent an alkyl or alkenyl group, and m is 0 or an integer from 1 to 6, and herbicidal compositions containing such compounds as active ingredients can be utilized in various agricultural methods.

Abstract: Disclosed are solid, phytoactive, N-phosphonomethyl-N-carboxymethyl compositions. Also disclosed are processes for the preparation of such compositions by(a) forming an initial mixture comprising a phytoactive N-phosphonomethyl-N-carboxymethyl compound, a solvent and a molten surfactant, the surfactant being solid at ambient temperatures;(b) removing solvent from the initial mixture to form a final mixture at a temperature above the melting point of the surfactant;(c) cooling the final mixture to a temperature below the melting point of the surfactant to form a N-phosphonomethyl-N-carboxymethyl composition which is solid at ambient temperatures; and(d) processing said composition into particulate form, such as pellets, flakes, granules, or powders.

Abstract: A method for killing or controlling weeds in a soya crop, which method comprises applying to the crop or to the location thereof a compound of formula (I): ##STR1## in an amount sufficient to kill the weeds but insufficient to kill the crop.