Variation in root growth and nutrient element concentration in wheat and rice: Effect of rate and type of organic materials

People have different opinions regarding the use and importance of organic amendments for sustainable crop production. The objectives of the included comparison of different types and levels of farm manure (FM) and compost on root growth and nutrient concentrations of wheat (Triticum aestivum L.) and rice (Oryza sativa L.). The experiments were laid out to compare different types and levels of farm manure and compost with the recommended mineral fertilizer. Significant difference (P 0.05) were recorded for root length of both wheat and rice crops. The nutrient concentrations exhibited varying effects of different amendments. The concentration of N in wheat grain and straw (1.67 and 0.71 %, respectively) was significantly greater as compare to control (P 0.05) than treatments of compost at 500 kg ha^–1 and farm manure at 40 Mg ha^–1, respectively. The root lengths of both wheat and rice were increased significantly (P 0.05) by the application of farm manure and compost.