eprintid: 1822
rev_number: 9
eprint_status: archive
userid: 14
dir: disk0/00/00/18/22
datestamp: 2011-09-21 10:16:10
lastmod: 2015-01-05 03:39:46
status_changed: 2011-09-21 10:16:10
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
item_issues_count: 0
creators_name: Sahrawat, K L
creators_name: Rahman, M H
creators_name: Rao, J K
icrisatcreators_name: Sahrawat, K L
icrisatcreators_name: Rahman, M H
icrisatcreators_name: Rao, J K
affiliation: ICRISAT(Patancheru)
country: India
title: Leaf phosphorus and sorghum yield under rainfed cropping of a Vertisol
ispublished: pub
subjects: s1.4
full_text_status: restricted
abstract: A field experiment was conducted at Patancheru, Andhra Pradesh in 1987-89 to study the response of sorghum cv. CSH 6 to fertilizer P (0, 10, 20 and 40 kg/ha) on a Vertisol low in extractable P. One sorghum crop was grown each year during the rainy season (June to September). Tissue samples from the newest, fully-developed leaf were collected at 50% flowering stage to establish the relationship between leaf P concentration and grain yield. During the three years, sorghum grain yield and leaf P concentration increased in response to P application up to 40 kg/ha. Leaf P concentration was linearly related to grain yield (r² varied from 0.724 to 0.993). The critical leaf P concentration at 90% of the maximum grain yield was about 0.25% P. Phosphorus content in the grain was not significantly correlated to yield.
date: 1999
date_type: published
publication: Nutrient Cycling in Agroecosystems
volume: 54
number: 1
publisher: Kluwer
pagerange: 93-98
refereed: TRUE
official_url: http://dx.doi.org/10.1023/A:1009780411676
related_url_url: http://scholar.google.co.in/scholar?as_q=Leaf+phosphorus+and+sorghum+yield+under+rainfed+cropping+of+a+Vertisol&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&as_sdt=1.&as_sdtp=on&as_sdtf=&as_sd
related_url_type: author
citation:   Sahrawat, K L and Rahman, M H and Rao, J K  (1999) Leaf phosphorus and sorghum yield under rainfed cropping of a Vertisol.  Nutrient Cycling in Agroecosystems, 54 (1).  pp. 93-98.      
document_url: http://oar.icrisat.org/1822/1/NutCycAgro54_1_93-97_1999.pdf