Vol. 12, Issue 4 (2023)

Author(s):
Rajnish Anand and Dr. Phool Chandra Singh

Abstract:
The experiment was conducted at Sri Durgajee Post Graduate College, Chandeshwar, Azamgarh, (U.P.) during rainy and winter seasons of 2019-20 and 2020-21.To study the Residual effect of succeeding crop under weed management on black gram-mustard cropping system. The experiment was laid out in a RBD with 16 treatments i.e. Imazthapyr 50g/haPRE (T1), Imazthapyr 70g/haPRE (T2), Imazthapyr 80g/haPRE (T3), Imazthapyr 50g/haPOE (T4), Imazthapyr 70g/haPOE (T5), Imazethapyr 80g/ha POE (T6), Imazethapyr.+Imazemox (RM) 50g/haPRE (T7), Imazethapyr.+Imazemox (RM) 70g/haPRE (T8), Imazethapyr.+Imazemox (RM) 80g/haPRE (T9), Imazethapyr.+Imazemox (RM) 50g/haPOE (T10), Imazethapyr.+Imazemox(RM) 70g/haPOE(T11), Imazethapyr.+Imazemox(RM) 80g/haPOE (T12), Pendimethalin1000g/ha PRE (T13), Imazethapyr + Pendimethalin (RM)1000g/ha PRE (T14), Hoeing twice (T15) each performed at 20 and 40 DAS and weedy check (T16) replicated thrice. Blackgram var. T9 and mustard var. Shivani was sown at 30 cm using 30 and 8 kg seed/ha, with RDF 20:40:20 and 80:40:20 kg/ha, respectively. Application of Imazethapyr.+Imazemox (RM) 80g/ha POE (T12) also recorded higher growth parameters plant height, dry matter, leaf area index, grain and straw yield compared to rest of weed treatments.