The subsurface compact layer found in medium- to coarse-textured soils of rice-grown areas hampers the root growth of crops. Moreover, the puddled transplanted rice is being faced by water and labour shortages in the region. It is thus imperative to study the effects of deep tillage and irrigation regimes on crop performance of direct seeded rice (DSR) and wheat. A 2-year field experiment was conducted during 2016–2017 and 2017–2018 in a sandy loam soil to investigate the effects of deep tillage and irrigation regimes on crop performance of DSR–wheat cropping system. There were two irrigation regimes both in DSR [irrigation to DSR at 4-day (4-d) and 8-day (8-d) interval] and in wheat crop [based on irrigation water to pan evaporation ratio of 1.0 (I_1.0) and 0.5 (I_0.5)] in main plots, with three tillage treatments, viz. (1) conventional tillage in DSR + conventional tillage in wheat (DSRCT-WCT), (2) deep tillage before the sowing of DSR during first season + conventional tillage in wheat (DSRDT₁-WCT) and (3) deep tillage before the sowing of DSR during both the seasons + conventional tillage in wheat (DSRDT₂-WCT) in subplots. The root growth was higher in plots with deep tillage in comparison with plots with conventional tillage. The increased root growth under deep tilled conditions attributed to higher grain yield of DSR (18.3 and 12.6% during 2016 and 2017, respectively), wheat (6.6 and 7.9% during 2016–2017 and 2017–2018, respectively) and cropping system a whole (12.6 and 10.9% during 2016–2017 and 2017–2018, respectively). Though the tillage treatments were imposed before the sowing of DSR, they had residual impact on the following wheat crop. Deep tillage during both the seasons (DSRDT₂-WCT) had not any significant influence on the grain yield of DSR, wheat and cropping system as a whole in comparison with deep tillage only once in 2 years (DSRDT₁-WCT).

在水稻种植区的中度至粗质地土壤中发现的地下致密层阻碍了作物的根系生长。此外，该地区移栽的大米面临着缺水和劳动力短缺的问题。因此，有必要研究深耕和灌溉制度对直播稻和小麦作物生长的影响。在2016-2017年和2017-2018年期间，在沙质壤土上进行了为期两年的田间试验，以调查深耕和灌溉制度对DSR-小麦种植系统作物性能的影响。DSR [在4天（4-d）和8天（8-d）间隔灌溉至DSR]和小麦作物中都有两种灌溉方式[基于灌溉水与锅的蒸发比为1.0（I _1.0）和0.5（I _0.5）]在主要地块中，进行了3​​种耕作处理，即。（1）DSR常规耕种+小麦常规耕种（DSRCT-WCT），（2）第一季DSR播种前的深耕+小麦常规耕种（DSRDT ₁ -WCT）和（3）小麦前常规耕种两个季节的DSR播种+小麦的常规耕作（DSRDT ₂-WCT）。与传统耕作相比，深耕地块根生长更高。深耕条件下根系生长的增加归因于DSR（2016年和2017年分别为18.3和12.6％），小麦（2016-2017年和2017-2018年分别为6.6和7.9％）和整个种植系统的较高谷物产量（2016-2017年和2017-2018年分别为12.6％和10.9％）。尽管在DSR播种前进行了耕作处理，但它们对随后的小麦作物产生了残留影响。这两个季节里深耕（DSRDT ₂ -WCT）在2年内有没有DSR，小麦和种植系统作为一个整体的粮食产量的任何显著影响与深翻比较只有一次（DSRDT ₁ -WCT）。