Integrated nutrient management in maize (Zea mays L.) PDF
Preview Integrated nutrient management in maize (Zea mays L.)
Integrated nutrient management in maize (Zea mays L.) under irrigated Agro-ecosystem of Kashmir valley Syed Ansar-ul Haq (2003-A-100 -D) Division of Agronomy Faculty of Post graduate Studies Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir 2006 Integrated nutrient management in maize (Zea mays L.) under irrigated Agro-ecosystem of Kashmir valley Syed Ansar-ul Haq (2003-A-100-D) Thesis Submitted to The Faculty of Post-graduate Studies Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir in partial fulfillment of requirement for the award of the degree of Doctor of Philosophy in Agriculture (Agronomy) 2006 DEDICATED TO MY Respected Uncle (LATE SYED SHAMIM AHMAD) who went heavenly th abode on 8 April 1993 Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Division of Agronomy, Shalimar Campus Srinagar 191 121 Certificate – I This is to certify that the thesis entitled. “Integrated nutrient management in maize (Zea mays L.) under irrigated Agro- ecosystem of Kashmir valley” submitted in partial fulfillment of the requirements for the award of the degree of Doctor of Philosophy in Agriculture (Agronomy), to the Faculty of Post-graduate Studies, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir is a record of bonafide research work carried out by Syed Ansar-ul Haq (Regd. No.2003-A-100-D) under my supervision and guidance. No part of the thesis has been submitted for any other degree or diploma. It is further certified that information received during the course of investigation has been duly acknowledged. Dr. Gulzar Ahmad Wani Chairman Advisory Committee Endorsed Prof. & Head Division of Agronomy Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Division of Agronomy, Shalimar Campus Srinagar 191121 Certificate – II We, the members of the Advisory Committee of Syed Ansar-ul Haq (Regd. No. 2003-A-100-D), a candidate for the degree of Doctor of Philosophy in Agriculture (Agronomy) have gone through the manuscript of the thesis entitled, “Integrated nutrient management in maize (Zea mays L.) under irrigated Agro- ecosystem of Kashmir valley” and recommended that it may be submitted by the student in partial fulfillment of the requirements for the award of the degree. Advisory Committee Chairman Dr. Gulzar Ahmad Wani Associate Professor (Agronomy) Members Dr. K.N. Singh Associate Professor Division of Agronomy Dr. J.A. Wani Associate Professor Deptt. of Soil Science FoA, Wadura Mr. A.H. Lone Assistant Professor Division of Agri. Stat. & Econ. Dean PG Nominee Dr. M.Z. Khan Prof. Cum Chief Scientist FVSc & A.H. Shuhama Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Shalimar Campus Srinagar 191121 Certificate – III This is to certify that the thesis entitled “Integrated nutrient management in maize (Zea mays L.) under irrigated Agro- ecosystem of Kashmir valley” submitted by Syed Ansar-ul Haq (Regd. No. 2003-A-100-D) to the Faculty of Post–graduate Studies, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir in partial fulfillment of the requirements for the award of the degree of Doctor of Philosophy in Agriculture (Agronomy) was examined and approved by the Advisory Committee and External Examiner on ............ 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Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir Division of Agronomy, Shalimar-191 121 Name of the student : Syed Ansar-ul-Haq Registration No. : 2003-A-100-D Major Subject : Agronomy Minor Subject : Soil Science/Plant Physiology Major Advisor : Dr. Gulzar Ahmad Wani Associate Professor (Agronomy) Title of the Thesis : Integrated nutrient management in maize (Zea mays L.) under irrigated Agro-ecosystem of Kashmir Valley ABSTRACT A field experiment was conducted at Shalimar Campus during 2004 and 2005 on a silty clay loam soil, medium in available nitrogen, available phosphorus and available potassium to study the effect of integrated nutrient management in maize under irrigated Agro-ecosystem of Kashmir Valley. The experiment comprising of 18 treatment combinations viz., 3 levels of FYM (10, 20 and 30 t ha-1), 3 levels of inorganic fertilizers (90 : 60 : 30, 120 : 80 :40 and 150 :100 :50 kg N : P O : K O ha-1, respectively) and combination of 2 bio-fertilizers 2 5 2 (Azospirillum + PSB and Azotobacter + PSB) was laid out in a randomized block design with three replications. The results revealed that grain and stover yield of maize increased significantly upto 30 t FYM ha-1 with concomitant increase in its yield attributes viz., cob length, cob diameter, no. of grains per cob and 1000- grain weight and growth characters like plant height, number of leaves per plant, leaf area index and dry matter accumulation. The application of inorganic fertilizer @ 150 : 100 : 50 kg N : P O : K O ha-1 (F ) resulted in significantly 2 5 2 3 higher grain (57.51 q ha-1) and stover yield (73.84 q ha-1) over F fertility level 1 (90:60:30 kg N : P O : K O ha-1) of maize along with all the growth and yield 2 5 2 attributing characters studied. The extent of increase was 20.21 % for grain yield and 21.78% for stover yield. However, on the basis of grain and stover yield, the bio-fertilizers were statistically at par among themselves. Application of FYM @ 30 t ha-1 and inorganic fertilizer @ 150 : 100 :50 kg N:P O :K O ha-1 significantly 2 5 2
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