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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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Subject: Agronomy × Author: Dhankar, Amit × End date: 2019 × Start date: 2019 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Evaluation of different herbicides in spring planted sugarcane
    (CCSHAU, 2019) Dhankar, Amit; Mehar Chand
    The present study entitled “Evaluation of different herbicides in spring planted sugarcane” was carried out during 2018-19 at Regional Research Station, Uchani, Karnal of CCS Haryana Agricultural University, Hisar (Haryana). The objectives of the research was to study the effect of different herbicides on weed, growth and yield of sugarcane, to observe the phytotoxicity of different herbicides on sugarcane crop and to work out the economics of different weed control treatments. The experiment was conducted on sugarcane variety CoH 167 in randomized complete block design with eighteen weed control treatments and three replications. The treatments were metribuzin 1.0 kg ha-1 PRE (T1), metribuzin + halosulfuron 67.5 g ha-1 (TM) PRE (T2), atrazine 2.0 kg ha-1 PRE (T3), atrazine + halosulfuron (TM) PRE (T4), metribuzin + halosulfuron PoE at 40 DAP (T5), atrazine + halosulfuron PoE at 40 DAP (T6), metribuzin PRE fb halosulfuron PoE 40 DAP (T7), atrazine PRE fb halosulfuron PoE (T8), sulfentrazone 720 g ha-1 PRE fb hoeing at 45 DAP fb 2,4-DE 1.0 kg ha-1 at 60 DAP (T9), sulfentrazone 720 g ha-1 PRE fb hoeing at 45 DAP fb almix 4g ha-1 at 60 DAP (T10), atrazine PRE fb 2,4-D at 60 DAP (T11), hoeing after first irrigation fb atrazine after second irrigation (T12), glyphosate 1680 g ha-1 + metribuzin + surfactant (TM) at 15 DAP EPoE (T13), atrazine PRE fb metsulfuron + carfentrazone 25 g ha-1 PoE at 60 DAP (T14), atrazine PRE fb hoeing at 45 DAP fb topramezone 25 g ha-1 PoE at 60 DAP (T15), paraquat EPoE 15 DAP fb atrazine PoE at 60 DAP (T16), Three hoeing at 30, 60 and 90 DAP (T17) and unweeded control (T18). The major weed flora recorded in the experimental field were Cyperus rotundus, Dactyloctenium aegypticum, Echinochloa colona, Brachiaria reptans,Amaranthus viridis, Portulaca oleracea, Convolvulus arvensis, Euphorbia microphylla and Ipomoea purpurea. Cyperus rotundus was the major weed constitutes 87.6 to 93.4 % weed density at different stages of crop growth. The treatments metribuzin + halosulfuron (TM) PoE (T5), metribuzin PRE fb halosulfuron PoE (T7), atrazine PRE fb halosulfuron PoE (T8), sulfentrazone as PRE fb hoeing at 45 days fb 2,4-D at 60 DAP (T9) gave the excellent control of complex weed flora of sugarcane and hence, higher weed control efficiency (%) was recorded from these treatments compared to rest of the treatments. Highest light interception (%) was recorded in T5 and T7. Highest crop dry matter accumulation by cane plant was recorded under three hoeing condition (T17)and in T5 – metribuzin + halosulfuron (TM) PoE. Higher NMCs, single cane weight and cane length was recorded from T17, T7 and T5 treatment compared to rest of the treatments. Among all the treatments maximum cane yield was obtained from three hoeing treatment -T17 (92.9 t ha-1) and among herbicidal treatment T5 (91.6 t ha-1), T7 (90.8 t ha-1), T9 (85.1 t ha-1), T2 and T8 (84.9 t ha-1). Juice quality parameters were not significantly affected by different weed management treatments. None of the applied herbicide alone, in combination and in sequence had any phytotoxic effect on sugarcane plant crop, except metsulfuron + carfentrazone (T14), Highest total cost of cultivation and gross returns were obtained from three hoeing treatment (`1,74,225 ha-1 and `3,25,707 ha-1) and highest return over variable cost and B: C ratio was recorded from T5- metribuzin 1.0 kg ha-1 + halosulfuron 67.5 g ha-1 (TM) PoE (`1,49,849 ha-1 and 1.87) and T7- metribuzin 1.0 kg ha-1PRE fb halosulfuron 67.5 g ha-1 PoE (` 1,44,463 ha-1 and 1.83 ).