Journal of the Indian Society of Soil Science

SCOPUS
  • Year: 2000
  • Volume: 48
  • Issue: 3

Phosphorus-Sulphur Interaction Effects on Dry Matter Yield and Nutrient Uptake by Wheat

  • Author:
  • P.S. Randhawa, C.L. Arora
  • Total Page Count: 5
  • DOI:
  • Page Number: 536 to 540

Department of Soils, Punjab Agricultural University, Ludhiana, Punjab, 141004.

null

Abstract

A pot culture experiment on a sandy soil (Fatehpur series of Typic Ustipsamments) as well as a loam soil (Nabha series of Typic Ustochrepts) with five rates of phosphorus and sulphur (0–100 mg kg−1 soil), showed highly significant PXS interaction in terms of drymatter yield of wheat (HD 2329) and nutrient uptake. In the loam soil significant increase in total drymatter was observed when 50 mg P kg−1 was applied in combination with 12.5 mg 5 kg−1 In the sandy soil, combined application of P and 5 @ 25 mg kg−1 each, resnlted in a significant increase in drymatter yield. Highly significant positive interaction was obtained between P and 5 in terms of total P nptake at lower rates of 5 application; higher rates of 5 resulted in a decreased total P uptake in both the soils. The P and 5 interaction was also significant in terms of 5 uptake. The highest 5 uptake was observed with combined application of P and 5 @ 25 mg kg−1 each. The results further showed that the uptake of P or 5 increased at lower levels of counter ion but decreased at higher rates

Keywords

Phosphorus, sulphur, interaction, uptake