Feld experiments were undertaken at the ICAR–Indian Agricultural Research Institute, New Delhi in the winter seasons of 2013–14 and 2014–15. The objective of the study was to evaluate the significance of three crop establishment methods viz., conventional drill sown wheat, the system of wheat intensification, and zero tillage wheat and rates of nitrogen, phosphorus (P), and zinc (Zn) fertilization in conjunction with use of microbial consortia for P and iron (Fe) nutrition of wheat. The variations in P and Fe concentration and uptake in the wheat plant as well as soil NaHCO₃-extractable P at different growth stages and alkaline phosphatase activity were selected to deduce the contribution of variables in the nutrition of wheat. The concentration and uptake of P and Fe were found significantly higher in zero tillage wheat with 1.3–1.4 kg ha^–1 and 195–203 g ha^–1 higher total P and Fe uptake, than conventional drill-sown wheat and system of wheat intensification. Application of 100% recommended dose of nutrients (RDN) (25.8 kg P ha^–1 and 120 kg N ha^–1) led to significantly higher P concentration and uptake than 75% RDN and absolute control. The application of Anabaena sp. (CR1) + Providencia sp (PR3) consortium and Anabaena–Pseudomonas (An-Ps) biofilmed formulation significantly increased P concentration in grain and straw, with an enhancement in total P uptake by 0.9–1.9 kg ha^–1 and significantly higher alkaline phosphatase activity. A positive balance (0.2–2.4 kg ha^–1) of soil NaHCO₃-extractable P was recorded with the application of microbial consortia. Our study signifies the promise of microbial inoculation, along with recommended N and P fertilization and zero tillage for enhancing P and Fe nutrition of wheat.

在2013–14和2014–15冬季，在新德里的ICAR-印度农业研究所进行了实地试验。该研究的目的是评估三种作物栽培方法的重要性，即常规的播种小麦，小麦集约化系统和零耕种小麦以及氮，磷（P）和锌（Zn）施肥率。结合使用微生物联盟为小麦提供磷和铁（Fe）营养。小麦以及土壤NaHCO ₃中磷和铁的浓度和吸收变化选择不同生长阶段可提取的磷和碱性磷酸酶活性来推断变量在小麦营养中的作用。在零耕小麦中，磷和铁的浓度和吸收显着更高，与传统的播种小麦和小麦强化系统相比，磷和铁的总吸收分别高1.3–1.4 kg ha ^–1和195–203 g ha ^–1。。施用100％建议剂量的营养素（RDN）（25.8 kg P ha ^–1和120 kg N ha ^–1）比75％RDN和绝对控制显着提高P浓度和吸收。鱼腥藻的应用。（CR1）+ Providencia sp（PR3）财团和鱼腥藻-假单胞菌（An-Ps）生物膜制剂显着提高了谷物和稻草中的P浓度，使总P吸收增加了0.9-1.9 kg ha ^-1，并且碱性磷酸酶活性显着提高。通过应用微生物联合体，记录到土壤NaHCO _3可提取P的正平衡（0.2–2.4 kg ha ^–1）。我们的研究表明微生物接种的前景，以及建议的氮，磷施肥和零耕作，以增强小麦的磷和铁营养。