Abstract: The present invention relates to crop culture and is particularly concerned with practices for conserving soil nitrogen and for supplying the soil nitrogen requirements for plant nutrition. These practices involve the employment, as active agent, of a novel butane compound having the formula ##STR1## wherein X is H or ##STR2## R is H or C.sub.1 -C.sub.8 alkyl; R' is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halo and n is an integer from 0 to 2.

Abstract: The present invention relates to crop culture and is particularly concerned with practices for conserving soil nitrogen and for supplying the soil nitrogen requirements for plant nutrition. These practices involve the employment, as active agent, of a novel butane compound having the formula ##STR1## wherein X is H or ##STR2## R is H or C.sub.1 -C.sub.8 alkyl; R' is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halo andn is an integer from 0 to 2.

Abstract: Disclosed herein are substituted oxirane compounds corresponding to the formula ##STR1## wherein X represents halogen; Z represents hydrogen, halogen, cyano or lower alkyl; R and R' each independently represent hydrogen, halogen, cyano, nitro, alkoxy, trifluoromethyl, benzyloxy or lower alkyl, with the proviso that when R' is hydrogen, R is cyano, nitro, alkoxy, trifluoromethyl, benzyloxy or loweralkyl. The compounds are especially useful as pesticides in preventing germination of undesired plant seeds and controlling noxious weeds and fungal organisms and can be formulated to provide pesticidal compositions.

Abstract: Disclosed herein are substituted oxirane compounds corresponding to the formula ##STR1## wherein X represents halogen; Z represents hydrogen, halogen, cyano or lower alkyl; R and R' each independently represent hydrogen, halogen, cyano, nitro, alkoxy, trifluoromethyl, benzyloxy or lower alkyl, with the proviso that when R' is hydrogen, R is other than hydrogen. The compounds are especially useful as pesticides in preventing germination of undesired plant seeds and controlling noxious weeds and fungal organisms and can be formulated to provide pesticidal compositions.

Abstract: Disclosed herein are substituted oxirane compounds corresponding to the formula ##SPC1##Wherein X represents halogen; Z represents hydrogen, halogen, cyano or lower alkyl; R and R' each independently represent hydrogen, halogen, cyano, nitro, alkoxy, trifluoromethyl, benzyloxy or lower alkyl, with the proviso that when R' is hydrogen, R is other than hydrogen. The compounds are especially useful as pesticides in preventing germination of undesired plant seeds and controlling noxious weeds and fungal organisms and can be formulated to provide pesticidal compositions.