The application of mulching materials has significantly improved the production of wheat in semi-arid regions. However, various mulching applications under different tillage practices, whether it can improve the root growth, spatial distribution of root, nutrients uptake and grain yield of wheat is not clear. Therefore, a two years field study was carried out during 2016–17 and 2017–18 to evaluate root growth, nutrients uptake, and wheat production under six treatments: CT: conventional planting; SM: wheat stalk mulching; FM: plastic mulching; RT: without plastic mulching with furrow and ridge planting; RP: plastic mulching with furrow and ridge planting; RPS: plastic mulching on ridges and stalk mulching on furrows. Under the RPS treatment, root biomass, soil moisture, soil enzymatic activity, and microbial abundance can be significantly improved, thus promoting root growth, nutrient absorption, and wheat production. The RPS treatment significantly improved the rooting system in the upper soil profile of 50 cm, which helped increase the yield of wheat. At various wheat growth stages, the RPS and RT treatment at the depth of 10–50 cm significantly increased root bleeding saps, and RLD, and reached up to the highest value at 125 DAP. However, there were no differences in RLD between the six different treatment methods in deeper soil profiles below 60 cm. In addition, during 2016–17 and 2017–18, the NH₄⁺ and NO₃^- delivery rates under the RPS were significantly higher than that of FM and RT, while the delivery rates of NH₄⁺ and NO₃^- under the RP treatment were maximum compared with FM practice. Under the RPS and RT treatments, the Fe, Ca, P, Zn, K, and Mg delivery rates were significantly maximum. In summary, RPS farming practices have been great potential to improve the rhizosphere environment, root biomass, and wheat yield in semi-arid regions.

覆盖材料的应用显着提高了半干旱地区小麦的产量。然而，不同耕作方式下的各种覆盖应用，是否能改善小麦的根系生长、根系空间分布、养分吸收和籽粒产量尚不清楚。因此，在 2016-17 和 2017-18 期间进行了为期两年的田间研究，以评估六种处理下的根系生长、养分吸收和小麦产量：CT：常规种植；SM：小麦秸秆覆盖；FM：地膜覆盖；RT：无地膜沟垄种植；RP：地膜沟垄种植；RPS：在垄上覆盖塑料，在犁沟上覆盖秸秆。在RPS处理下，根系生物量、土壤水分、土壤酶活性和微生物丰度可以显着提高，从而促进根系生长、养分吸收和小麦生产。RPS 处理显着改善了 50 cm 上部土壤剖面的根系，这有助于提高小麦的产量。在小麦的各个生育阶段，10-50 cm深度的RPS和RT处理显着增加根系流血汁液和RLD，并在125 DAP时达到最高值。然而，在 60 cm 以下更深的土壤剖面中，六种不同处理方法之间的 RLD 没有差异。此外，在 2016-17 和 2017-18 年期间，NH 10-50 cm深度的RPS和RT处理显着增加了根出血液和RLD，并在125 DAP时达到最高值。然而，在 60 cm 以下更深的土壤剖面中，六种不同处理方法之间的 RLD 没有差异。此外，在 2016-17 和 2017-18 年期间，NH 10-50 cm深度的RPS和RT处理显着增加了根出血液和RLD，并在125 DAP时达到最高值。然而，在 60 cm 以下更深的土壤剖面中，六种不同处理方法之间的 RLD 没有差异。此外，在 2016-17 和 2017-18 年期间，NHRPS下的₄ ⁺和NO ₃ ^-释放率显着高于FM和RT，而RP处理下NH ₄ ⁺和NO ₃ ^-的释放率与FM实践相比最大。在 RPS 和 RT 处理下，Fe、Ca、P、Zn、K 和 Mg 的输送速率显着最大。总之，RPS 耕作方式在改善半干旱地区的根际环境、根生物量和小麦产量方面具有巨大潜力。