Agriculture University, Jodhpur was established on 14th September, 2013 by Government of Rajasthan under Agriculture University, Jodhpur Act 21 of 2013 to focus on holistic development of arid and semi-arid regions of the state covering 6 districts (Jodhpur, Barmer, Nagaur, Pali, Jalore and Sirohi), constituting 28% of total geographical area which is sustaining 20.8% human and 28.4% animal population of the state. The districts under jurisdiction of the university cover 3 agro-ecological zones of the state. These are Arid Western Plain Zone Ia (Jodhpur and Barmer districts), Transitional plain of Luni Basin Zone IIb (Jalore, Pali, and Sirohi districts) and part of Transitional Plain of Inland Drainage Zone IIa (Nagaur district). The university has 1 institute of diploma and 3 colleges to produce highly competent educated human resources in agriculture and allied sciences besides 2 agricultural research stations, one each in zone Ia & IIb and 3 agricultural research sub stations, one in each zone to prepare, plan and perform highly need based research in this acute water scarce but naturally rich bio-diversified zone of the country. The third most important part in tri-pillar (Teaching, Research & Extension) of agricultural development, the extension for transfer of technologies are reached to doorsteps of the farming community by 6 Krishi Vigyan Kendras (K-V-Ks), 2 in Nagaur district and 1 each in Jodhpur, Barmer, Jalore & Sirohi districts under the umbrella of the university. The different units of teaching, research and extension are coordinating to systematically run by the headquarter situated at Mandor, Jodhpur.
(Agriculture University, Jodhpur, 2020-07-15) ., Priyanka; Mehriya, M.L.; Shukla, U.N.; Singh, L. N.
A field experiment was conducted at Agricultural Research station, Mandor,
Agriculture University, Jodhpur during kharif, 2019 to study the “Efficacy of
herbicides in kharif groundnut (Arachis hypogaea L.)”. The Field experiment was
laid out in randomized block design (RBD) with thirteen treatments of replicated
thrice. The treatments comprises of W1- Pendimethalin 30 EC at 1.0 kg/ha (PE), W2-
Pendimethalin 38.7 CS at 1.0 kg/ha (PE), W3- Pendimethalin 30 EC + imazethapyr 2
EC at 1.0 kg/ha (PE) (ready-mix), W4- Imazethapyr 10 SL at 75 g/ha 20 DAS
(PoE),W5- Imazethapyr + imazamox (pre-mix) at 70 g/ha 20 DAS, W6- Pendimethalin
30 EC at 1.0 kg/ha (PE) + imazethapyr at 75 g/ha 20 DAS, W7- Pendimethalin 30 EC
at 1.0 kg/ha (PE) + quizalofop-p-ethyl at 50 g/ha 20 DAS W8- Sodium aciflourfen
16.5 % + clodinafop propargyl 8 % (ready-mix) at 200 g/ha 20 DAS, W9-
Pendimethalin 30 EC + imazethapyr 2 EC at 1.0 kg/ha (PE) (ready-mix) + quizalofop p-ethyl at 50 g/ha 20 DAS, W10- Pendimethalin 30 EC at 1.0 kg/ha (PE) + manual
weeding at 30 DAS, W11- Pendimethalin 30 EC + imazethapyr 2 EC at 1.0 kg/ha (PE)
(ready-mix) + manual weeding at 30 DAS, W12- Weed free, W13- Weedy check.
According to treatments, pendimethalin and its ready-mix with imazethapyr was
applied as pre-emergence, while imazethapyr and its ready-mix with imazamox,
quizalofop-p-ethyl and Sodium aciflourfen + clodinafop propargyl (ready-mix) were
applied as post-emergence (20 DAS).
Among treatments, application of pendimethalin + imazethapyr at 1.0 kg/ha
(PE) + one manual weeding at 30 DAS and pendimethalin at 1.0 kg/ha (PE) +
imazethapyr at 75 g/ha at 20 DAS significantly reduced weed density of broad leaved, grassy and sedge weeds and total weed dry matter at 30, 60, 90 DAS and at
harvest. Similarly, higher weed control efficiency was also obtained under these
treatments which resulted in reduction of weed index as well.
The plant height and crop dry matter accumulation as well as yield attributing
characters viz., number of pods/plant, pod yield/plant, number of kernels/pod and seed
index of groundnut were enhanced significantly under application of pendimethalin +
imazethapyr at 1.0 kg/ha (PE) + one manual weeding and pendimethalin at 1.0 kg/ha
(PE) + imazethapyr at 75 g/ha at 20 DAS. Due to better growth and yield attributes
and less weed index, these treatments resulted in higher pod, haulm, kernel and
biological yields which were found statistically at par with weed free condition. Pre emergent application of pendimethalin + imazethapyr at 1.0 kg/ha + one manual
weeding at 30 DAS and pendimethalin at 1.0 kg/ha (PE) + imazethapyr at 75 g/ha 20
DAS caused to increase the total nitrogen uptake by crop, protein content in kernel
and oil out-turn compared to other treatments, but was found at par with weed free
plot. These treatments also led to the lowest amount of nitrogen removal by weeds.
The highest net returns (` 1,47,438/ha) and B: C ratio (3.44) were obtained under
pendimethalin at 1.0 kg/ha (PE) + imazethapyr at 75 g/ha 20 DAS followed by
pendimethalin + imazethapyr at 1.0 kg/ha (PE) + one manual weeding at 30 DAS
(net returns ` 1,47,285/ha and B: C ratio 3.36 ).