ABSTRACT

In the present investigation, the concentration and uptake of four micronutrients (iron-Fe, zinc-Zn, copper-Cu, and manganese-Mn) in soybean (Glycine max, cv. JS 335) and wheat (Triticum durum, cv. HI 8498) crops under organic, biodynamic, and inorganic nutrient management was studied. The experiment was laid out in a randomized block design with seven treatments in four replications. The treatments involved different nutrient inputs, namely, organic manure (OM) (T₁); biodynamic preparation (BD) (T₂); OM+ panchagavya (OM+PG) (T₃); OM+BD (T₄); OM+PG+BD (T₅); control (T₆); and recommended dose of fertilizers (RDF) (T₇). Cattle dung manure on N equivalent basis to soybean in kharif and cattle dung manure (CDM) + vermicompost (VC) + poultry manure (PM) (1:1:1 on N equivalent basis) to wheat were applied as organic manure, whereas nutrients were supplied in the form of chemical fertilizers in RDF treatment. The results revealed that the micronutrient concentration in soybean seed under organic nutrient management registered an increment of 13–16% in Fe, 16–19% in Zn, 20–23% in Cu, and 19–25% in Mn over the treatment T₇ (RDF). Similarly, an increment of 16–19% in Fe, 21–27% in Zn, 20–23% in Cu, and 20–26% in Mn content of wheat grain was also observed over RDF. The micronutrient uptake by soybean-wheat sequence was found higher under organic treatments (Fe:20–29%; Zn:13–22%; Cu:11–19%; and Mn:12–19%) as compared to RDF. The availability of Fe, Zn, Cu, and Mn was increased by 30–36%, 32–45%, 5–12%, and 20–36%, respectively, under organic treatments over RDF.

摘要

在本研究中，大豆 ( Glycine max, cv. JS 335) 和小麦 ( Triticum durum, cv. HI 8498) 对有机、生物动力和无机养分管理下的作物进行了研究。该实验采用随机区组设计，四次重复，七次处理。处理涉及不同的养分投入，即有机肥（OM）（T ₁）；生物动力制剂（BD）（T ₂）；OM+ panchagavya (OM+PG) (T ₃ ); OM+BD (T ₄ ); OM+PG+BD (T ₅ )；控制（T ₆); 和推荐的肥料剂量 (RDF) (T ₇ )。在 kharif 中，牛粪与大豆的氮当量和牛粪 (CDM) + 蚯蚓粪 (VC) + 家禽粪 (PM)（以氮当量为基础 1:1:1）作为有机肥施用，而养分在RDF处理中以化肥的形式供应。结果表明，有机养分管理下大豆种子中的微量营养素浓度在 T 处理下分别增加了 13-16% 的 Fe、16-19% 的 Zn、20-23% 的 Cu 和 19-25% 的 Mn。₇（RDF）。同样，在 RDF 上也观察到小麦籽粒的 Fe 含量增加了 16-19%，Zn 增加了 21-27%，Cu 增加了 20-23%，Mn 含量增加了 20-26%。与 RDF 相比，在有机处理（Fe：20-29%；Zn：13-22%；Cu：11-19%；和 Mn：12-19%）下，大豆-小麦序列对微量营养素的吸收更高。在 RDF 的有机处理下，Fe、Zn、Cu 和 Mn 的可用性分别增加了 30-36%、32-45%、5-12% 和 20-36%。