Critical Limits of Phosphorus in Soil and Pea Plant Grown in Acid Soils of Senapati District of Manipur, India

Abstract

A pot culture study was conducted in 20 acidic soils of Senapati District of Manipur, India during rabi season of 2013-14 to estimate the critical limit of P in soil and pea plant for predicting the response of pea (Pisum sativum L.) to P application as well as to study the effect of P application on dry matter yield and uptake of nutrients in pea crop. The experimental soil was acidic in nature, electrical conductivity of the soil was in safe limit for crop growth. The organic carbon status was almost high and soil was clay in textural class. Pot culture studied showed that the application of phosphorus @ 60 kg P 2 O 5 ha -1 significantly superior (85 %) of the studied soils to any other treatments and 40 kg P 2 O 5 ha -1 was significantly (15 %) to the total soils in dry matter yield of Pea variety Arkel. The critical limit of the P concentration in the pea was found 0.42 per cent. It was revealed that the critical level of phosphorus in the soils for growing of pea plants varied with the methods of phosphorus extraction. The critical level of soils ranged from 14.30 to 25 kg P 2 O 5 ha -1 depending upon the methods of phosphorus extraction.

Influence of plant hormones and level of phosphorus on growth and yield of field pea (Pisum sativum L.) under irrigated conditions of Punjab

“…The maximum plant height 72.49 cm was exhibited by P2 (60 kg P2O5 ha-1). Favorable effect of phosphorus applied up to 60 kg ha-1 has also been reported by Kumar (2014) and Athokpam et al (2018). Plant hormones also affected plant height significantly at all stages of crop growth.…”

Assessment of some extractable macro and micro-nutrients along with multivariate analysis of their spatial distribution in soils of Haridwar district of Uttarakhand

“…In the entire district, the block with the highest average content of hot water -soluble B was Laxar block (0.74 mg kg -1 ). Athokpam et al (2013) also recorded similar results in the soils of Senapati district of Manipur, where the hot water-soluble B was ranging from 0.05-1.00 mg kg -1 . The extractable Mo content in the soils of Haridwar district varied from 0.25-1.59 mg kg -1 with an average of 0.63 mg kg -1 .…”