Open AccessNIGER (GUIZOTIA ABYSSINICA L.) – A PROMISING RABI SEASON CROP UNDER RICE-FALLOW SYSTEM IN NORTH-EAST INDIA
Author(s) -
Bhabesh Gogoi
Publication year - 2021
Publication title -
international journal on agricultural sciences
Language(s) - English
Resource type - Journals
ISSN - 0976-450X
DOI - 10.53390/ijas.v12i1.8
Subject(s) - stover , sowing , agronomy , crop , nutrient management , crop yield , yield (engineering) , mathematics , nutrient , biology , ecology , materials science , metallurgy
Assam is one of the major niger producing sates of India. Wide spread rice fallow and retreating northeast monsoon are the advantages for cultivation of rabi niger crop in Assam. However, niger yield under rainfed situation of Assam decreases drastically for every 15 days delay in sowing of the crop from 15th November to 30th December. Thehighest seed (4.1 q/ha) and stover (31.0 q/ha) yield could be obtained from 15th November sown crop. Nevertheless, sali rice is harvested late in Assam and so, delay sowing of next rabi crop leads to lower productivity of the crop. Application of 50% recommended dose of fertilizers (RDF) along with 50% nitrogen through FYM considerably increases yield attributing parameters that in the end maximize the stover and seed yield of niger crop. This can give 19.3 and 4.3% increase in stover and seed yield of niger respectively, over RDF. Thus, half of chemical fertilizers required for niger crop could be substituted through organic nutrient sources, which has also lead to an improvement in soil physico-chemical properties and higher availability of nutrients in soil. This review reported the detail management strategies for successful cultivation of rabi niger crop under rainfed situation of Assam of North-East region of India.