Influence of P-enriched compost application on economics and P use efficiency of a maize–wheat rotation system

作     者：Abdul Majeed Shahzada Munawar Mehdi Abid Niaz Abid Mahmood Ehsan-Ul-Haq Naeem Ahmad Shahid Javid Atif Mehmood 

作者机构：Sugarcane Research Institute FaisalabadAyub Agricultural Research InstitutePunjabPakistan Soil Fertility Research InstituteLahoreAyub Agricultural Research InstitutePunjabPakistan Institute of Soil Chemistry and Environmental SciencesAyub Agricultural Research InstitutePunjabPakistan Ayub Agricultural Research InstitutePunjabPakistan Provincial Reference Fertilizer Testing LaboratoryRaiwind LahorePunjabPakistan Key Laboratory of Clean Utilization Technology for Renewable EnergyMinistry of AgricultureCollege of EngineeringChina Agricultural UniversityBeijing 100083China 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2018年第6卷第6期

页      面：651-658页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：Ayub Agricultural Research Institute 

主　　题：P-enriched compost Maize Wheat Farmyard manure P-uptake 

摘      要：Crop phosphorus(P) deficiency and poor utilization of added P is a major agricultural problem due to reduced solubility of soil P and rapid fixation or precipitation of applied P fertilizer in alkaline and calcareous soils. The effects of P-enriched compost and single superphosphate(SSP) fertilization on maize and wheat yields and P use efficiency in a maize–wheat rotation system were studied for three years. On a three-year average, grain yields of maize and wheat after application of P-enriched compost were increased by 18% and 24%, respectively, in comparison with sole addition of a recommended dose of SSP fertilizer. P-enriched compost addition to soil increased maize and wheat yields by 12% and 17%, respectively, compared to P fertilizer plus FYM incorporation. Soil available P concentration and P uptake were affected significantly by the addition of P-enriched compost. On average, increases in P recovery, use efficiency, and agronomic efficiency of 52%, 18%, and 43% were recorded in maize and increases of 50%, 23%, and 49% in wheat. P-enriched compost application yielded 30% and 32%higher economic returns in maize and wheat than SSP fertilization alone.