pmas-arid agriculture university rawalpindi fertilizer assistant professor pmas-aaur agronomy dr. ghulam abbas shah the chi square test tests of significance: the basics measurement and sampling techniques concept of agro-ecology ecology agroecosystems irrigation water application techniques irrigation system of pakistan fiber crops of pakistan cereals major crops of pakistan major crop products food disc plough cultivation raja hull ploghing agro ecological zones of pakistan climate-smart agriculture greenhouse gas mitigation: a brief overview greenhouse effect and global warming carbon sequestration ghg effects rainfall temperature evapotranspiration etc windtrax bls manure system measurement methods ammonia
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