Spacing, Fertilizer and PGPR on Yield and Nutrient Uptake in Industrial Hemp (Cannabis sativa ssp. sativa) and Chemical Properties of Soil

Asian Journal of Soil Science and Plant Nutrition Pub Date : 2024-05-10 DOI:10.9734/ajsspn/2024/v10i2299

Meghana, H. R., Maruthi Prasad, B. N., Dhananjaya, B. N., .. Shankarappa, T. H., Harshaavardhan redi Sirupa

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Abstract

A field experiment was conducted to assess the influence of spacing, fertilizer levels and PGPR on yield and primary nutrients accumulation in different parts of industrial hemp and on chemical properties of soil. The experiment was laid out in Factorial Randomized Complete Block Design, spacing and fertilizers levels with or without PGPR were the factors. The results revealed, plants spaced at 15cm × 10cm registered significant yield of leaves, stems and roots (7.84, 9.80 and 4.20 t ha-1 respectively). The uptake of nitrogen and potassium (450.32 and 159.13 kg ha-1 respectively) was highest in this spacing, while, the phosphorous uptake (75.74 kg ha-1) was maximum in 10cm × 5cm spacing. Among nutrition, 125 percent RDF plus PGPR recorded a significant yield of stem and seed, also, this treatment resulted in maximum uptake of nitrogen and phosphorus (440.33 and 72.58 kg ha-1 respectively) by the plants. It can be inferred that spacing of 15cm × 10cm and application of 10 tonnes FYM with 250:125:250 kg N, P2O5, K2O ha-1 (125% RDF) plus PGPR consortia (Azospirillum brasilense, Pseudomonas fluorescens and Bacillus megaterium @ 5kg each) was found to be optimum to produce higher yields.

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间距、肥料和 PGPR 对工业大麻（大麻属）产量和养分吸收以及土壤化学特性的影响

我们进行了一项田间试验，以评估间距、肥料水平和 PGPR 对工业大麻不同部位的产量和主要养分积累以及土壤化学性质的影响。实验采用因子随机完全区组设计，以间距、施肥水平和是否施用 PGPR 为因子。结果表明，株行距为 15 厘米×10 厘米的植株叶、茎和根的产量显著（分别为 7.84 吨/公顷、9.80 吨/公顷和 4.20 吨/公顷）。氮和钾的吸收量（分别为 450.32 千克/公顷和 159.13 千克/公顷）在该株行距下最高，而磷的吸收量（75.74 千克/公顷）在 10 厘米 × 5 厘米株行距下最高。在各种营养元素中，125% RDF 加 PGPR 的茎秆和种子产量都很高，而且植物对氮和磷的吸收量也最大（分别为 440.33 千克/公顷和 72.58 千克/公顷）。由此可以推断，行距为 15 厘米 × 10 厘米，施用 10 吨含 250:125:250 千克氮、磷、钾的堆肥（125% RDF）加 PGPR 复合菌群（巴西天青霉菌、荧光假单胞菌和巨型芽孢杆菌各 5 千克），是提高产量的最佳方法。

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Asian Journal of Soil Science and Plant Nutrition

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