A multilocation field experiment was conducted at Students’ Research Farm, Department of Agronomy, Punjab Agricultural University (PAU), Ludhiana and PAU, Regional Research Station (RRS), Bathinda, during summer 2019. The experiment was conducted in RCBD with 15 treatment combinations with 3 replications. The treatments comprised of 3 mulch levels i.e., M₀, M₆, and M₁₂ i.e., no mulch, 6 and 12 t ha⁻¹, respectively, and 5 irrigation schedules i.e., I₁₀, I₂₀, I₃₀, and I₄₀ with 10%, 20%, 30% and 40% depletion of available soil water (ASW), respectively, and I_R (PAU recommendation as 4 irrigations). The growth parameters (plant height, dry matter accumulation and leaf area index), yield attributing characters namely pods per plant, number of seeds per pod and thousand-grain weight, seed and straw yield were significantly higher in M₁₂ than M₆ and no mulch (M₀). The growth parameters, yield attributes, seed and straw yield were significantly higher for I₁₀ due to increased irrigation frequency (5–6 irrigations). Both M₀I₁₀ (seven irrigations without mulch) and M₆I₃₀ (3 irrigations with straw mulch (6 t ha⁻¹)) treatments observed comparable seed yield (1.06 t ha⁻¹). Therefore, the substantial increase in seed yield with lower crop water use with the usage of straw mulch saves a considerable amount of water. Subsequently, the use of 6 t ha⁻¹ of straw mulch with 3 irrigations (30% depletion from available soil water) facilitated a higher seed yield. The crop water use (CWU) was highest for M₀ as due to bare soil, resulted in more evapotranspiration. The bio-physical productivity (BPWP) and water use efficiency was found to be maximum for mulch treatments. The I₁₀ reported maximum CWU, whereas, Bio-physical water productivity (BPWP) were higher for I₄₀ treatment where only one irrigation was given in this treatment. The WUE was maximum in I₃₀ treatment at Ludhiana and in I₂₀ at Bathinda location.

2019 年夏季，在旁遮普农业大学 (PAU) 农学系学生研究农场、卢迪亚纳和 PAU、巴辛达区域研究站 (RRS) 进行了多地点田间试验。该试验在 RCBD 进行，有 15 种处理组合有 3 个重复。处理包括 3 个覆盖水平，即 M ₀、M ₆和 M _12，即不覆盖，分别为 6 和 12 t ha ^-1，以及 5 个灌溉计划，即 I ₁₀、I ₂₀、I ₃₀和 I ₄₀分别消耗了 10%、20%、30% 和 40% 的可用土壤水 (ASW) 和 I _R（PAU 建议为 4 次灌溉）。M ₁₂生长参数（株高、干物质积累和叶面积指数）、产量属性即单株荚数、每荚种子数和千粒重、种子和秸秆产量在 M ₁₂中显着高于M ₆，没有覆盖（M ₀）。由于灌溉频率增加（5-6 次灌溉），I ₁₀的生长参数、产量属性、种子和秸秆产量显着更高。M ₀ I ₁₀（7 次无覆盖灌溉）和 M ₆ I ₃₀（3 次灌溉有秸秆覆盖（6 t ha ^-1））处理观察到相当的种子产量（1.06 t ha^-1 )。因此，通过使用秸秆覆盖降低作物用水量，种子产量大幅提高，节约了大量水资源。随后，使用 6 t ha ^-1秸秆覆盖物和 3 次灌溉（从可用土壤中消耗 30% 的水）促进了更高的种子产量。M ₀的作物用水量 (CWU) 最高，因为土壤裸露，导致更多的蒸散。发现生物物理生产力 (BPWP) 和用水效率对于覆盖物处理是最大的。I ₁₀报告了最大 CWU，而 I ₄₀处理的生物物理水生产力 (BPWP) 更高，在该处理中仅进行一次灌溉。WUE 在 I ₃₀时达到最大值在 Ludhiana 和 I ₂₀在 Bathinda治疗。