Organic Amendments Affect Soil Parameters in Two Long‐Term Rice‐Wheat Experiments

Abstract

D eveloping and implementing management strategies that maintain the quality of soil are essential to enhance the performance and sustainability of an agroecosystem. Carbon is the key attribute of soil quality (

System Yields, Nutrient Uptake and Balance of Mustard-Mungbean-T. Aman Rice Cropping Systems in Terrace Soils of Bangladesh

“…Plant samples (straw and grain) against each treatment plot were oven-dried at 70°C for 48 h and finely ground. The initial and final soil samples were analyzed for soil pH and organic matter by Nelson and Sommers [8] method; total N by Microkjeldahl method [9]; exchangeable K by 1N NH 4 OAc method [10]; available P by Olsen and Sommers [11] method; available S by turbidity method using BaCl 2 [12]; available Zn by DTPA method [13]; available B by azomethine-H method [14]. Ground plant samples were digested with di-acid mixture (HNO 3 -HClO 4 ) (5: 1) as described by Piper [15] for the determination-concentration of N (Micro-Kjeldahl method), P (spectrophotometer method), K (atomic absorption spectrophotometer method), S (turbidity method using BaCl 2 by spectrophotometer), Zn (atomic absorption spectrophotometer method) and B (spectrophotometer following azomethine-H method).…”

“…High yielding varieties of crops uptake higher amount of nutrients from soils resulting in depletion of soil organic matter and deterioration of soil fertility, poses a great threat to sustainable crop production. Moreover, continuous cropping Cropping Systems in Terrace Soils of Bangladesh without adequate replacement of removed nutrients and nutrient loss through erosion, leaching, and gaseous emission have caused depletion soil fertility as well as soil organic matter [4].…”

Relationship between residue quality, decomposition patterns, and soil organic matter accumulation in a tropical sandy soil after 13 years

“…Our observations that differences in residue quality (cellulose, lignin content or C/N ratio) may also influence the level of C accumulation in soils is supported by a similar observation that different manure qualities influence C storage in soils (Fließbach et al 2007). In addition, results of a rice-wheat rotation long-term (20-year) experiment in a loamy sand soil in tropical India have also shown differential SOC accumulation among organic residue treatments, i.e., farmyard manure (FYM) showed higher SOC than sesbania green manure (GM) and wheat straw treatments (Tirol-Padre et al 2007). These authors attributed the high SOC to higher lignin content of FYM relative to the other residues.…”

Effect of integrated use of cattle manure and inorganic fertilizers on tuber yield of potato in Ethiopia

“…Besides supplying macronutrients and micronutrients to the soil (Negassa et al, 2001;Tirol-Padre et al, 2007), farmyard manure also improves the physico-chemical properties of the soil (Tirol-Padre et al, 2007). However, unless it is integrated with inorganic fertilizers, the use of farmyard manure alone may not fully satisfy crop nutrient demand, especially in the year of application (Patel et al, 2009).…”