Abstract
Field experiment was conducted at Punjab Agricultural University, Ludhiana on direct seeded rice (DSR) with tillage systems and nitrogen (N) levels. The highest grain yield of DSR was recorded in zero tillage with wheat straw (ZTWS), which was statistically at par with zero tillage without wheat straw (ZTWOS). The application of 125 kg N/ha gave the maximum grain yield, which was at par with 100 kg N/ha. The ZTWS at 100 kg N/ha registered higher grain yield, which was at par with ZTWOS at 125 kg N/ha. However, the higher grain yield was recorded with the application of 125 kg N/ha under conventional tillage with wheat straw (CTWS) and with 150 kg N/ha in conventional tillage without wheat straw (CTWOS). Therefore, rice can be grown with ZTWS and ZTWOS with the application of 100 and 125 kg N/ha, respectively for higher productivity at low cost of cultivation by skipping the tillage operation at the time of sowing under the condition of loamy sand soils of Punjab.
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