有机肥和生物肥料分级施磷在灌溉黑豆上的研究

M. Tamizhvendhan, S. Kandasamy, D. Keerthi, R. Kishnamoorthy, C. Kalaiyarasan
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摘要

磷是一种主要的养分,在不同类型的土壤中具有广泛的响应,特别是在豆科植物中。在印度,近46%的土壤属于低磷土壤。因此,在印度98%的土壤中,需要施用磷肥来实现更高的产量。黑图的推广面积和生产效率都有广阔的发展空间。除扩大豆类种植面积外,还可通过富磷有机肥源配生物肥料进行磷养分管理等农艺措施实现产量最大化,以提高黑豆产量。因此,有必要评估适当的营养管理方法。该试验于2021年6月至8月在印度泰米尔纳德邦的Tiruvannamalai地区进行,研究了灌溉黑豆上磷和生物肥料的分级水平。试验采用分割小区设计,设4个主小区(m1 -对照、M2-20 kg P2O5/ha、M3-40 kg P2O5/ha和M4-60 kg P2O5/ha)和6个子小区(s1 -对照、s2 -种子处理和根瘤菌土壤施用、s3 -种子处理和磷细菌土壤施用、s4 -种子处理和根磷土壤施用、s5 -种子处理和AM真菌土壤施用、s6 -种子处理和AM真菌+根磷土壤施用3次)。P2O5 + 40 kg/ hm2 + AM真菌+根磷土壤处理与种子处理和土壤处理相比,可产生更高的分枝数(9.96),种子产量(1198 kg/ hm2),收获产量(1685 kg/ hm2)和收获指数(41.55),并获得更高的生产力和盈利能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Studies on application of graded levels of phosphorus through PROM and biofertilizers on irrigated blackgram (Vigna mungo)
Phosphorus is a major nutrient giving widespread response in different kinds of soil especially in legumes. In India, soils of nearly 46% of the area are in the low P category. Thus, there is a need for application of P for achieving higher yields in 98% of the soils of India. There is a vast scope for extension of area as well as increasing the productivity of blackgram. Besides bringing more area under pulses, yield maximization with agronomic practices such as phosphorus nutrient management through phosphate rich organic manure (PROM) source with biofertilizers to be adopted to increase the production of blackgram. Hence, there is a need to evaluate the appropriate nutrient management methods. The field experiment was conducted at Tiruvannamalai district of Tamil Nadu, India during June – August 2021 to study the graded levels of phosphorus and biofertilizers on irrigated blackgram. The experiment was laid out in a split plot design with four main plots (M1–Control, M2–20 kg P2O5/ha, M3–40 kg P2O5/ha and M4–60 kg P2O5/ha through PROM) and six sub-plots (S1–Control, S2–Seed treatment and soil application with Rhizobium, S3–Seed treatment and soil application with Phosphobacteria, S4–Seed treatment and soil application with Rhizophos, S5–Seed treatment and soil application with AM fungi and S6–Seed treatment and soil application with AM fungi + Rhizophos replicated thrice. Application of P2O5 @ 40 kg/ha through PROM along with seed treatment and soil application of AM fungi + Rhizophos was found to be superior to other treatments by producing higher number of branches (9.96), seed yield (1198 kg/ha), haulm yield (1685 kg/ha) and harvest index (41.55) and achieved the higher productivity and profitability.
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