Digital Library
Close Browse articles from a journal
 
<< previous    next >>
     Journal description
       All volumes of the corresponding journal
         All issues of the corresponding volume
           All articles of the corresponding issues
                                       Details for article 74 of 103 found articles
 
 
  Response of Rice Advance Line PB-95 to Potassium Application in Saline-sodic Soil
 
 
Title: Response of Rice Advance Line PB-95 to Potassium Application in Saline-sodic Soil
Author: Shahzada Munawar Mehdi
Muhammad Sarfraz
Mudassar Hafeez
Appeared in: Pakistan journal of biological sciences
Paging: Volume 10 (2007) nr. 17 pages 2935-2939
Year: 2007
Contents: A field experiment was conducted to evaluate the response of rice crop to potassium fertilization in saline-sodic soil during 2005. Soil samples were collected before transplanting of rice crop and analysed for physical and chemical properties of the soil. In this experiment five rates of K2O (0, 25, 50, 75 and 100 kg ha-1) were applied in the presence of basal doses of N and P2O5 i.e., 110 and 90 kg ha-1, respectively. Whole of P, K and ½ of N were applied at the time of rice transplanting. Twelve and half kg ha-1 ZnSO4 was also applied 15 days after rice transplanting. The remaining half of N was applied 30 days after rice transplanting. The system of layout was Randomized Complete Block Design with four replications. The net plot size was 6x4 m. Fertilizer sources of NPK were urea, TSP and SOP, respectively. Rice salt tolerant line PB-95 was used as test crops. The data of growth parameters and yield was recorded and samples of paddy and straw were collected treatment-wise and analysed for N, P and K contents. Soil samples after harvesting the crop were also collected, processed and analysed for the changes in the extractable soil K. The results showed that increasing rates of potassium fertilizer increased the number of tillers m-2, plant height (cm), 1000-paddy weight and paddy as well as straw yield significantly. Maximum paddy (3.24 t ha-1) and straw (3.92 t ha-1) yields were obtained in T5 (100 kg K2O ha-1) which was at par with T4 (75 kg K2O ha-1). With increasing rates of potassium fertilizer, concentration of potassium in paddy and straw increased significantly. After harvesting the crop, the extractable potassium contents of soil increased from that of the original soil. It was concluded from the results that there was an increase of 30.65% in paddy over control by applying potassium (100 kg K2O ha-1) in saline-sodic soil.
Publisher: Asian Network for Scientific Information (provided by DOAJ)
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 74 of 103 found articles
 
<< previous    next >>
 
 Koninklijke Bibliotheek - National Library of the Netherlands
Toegankelijkheidsverklaring