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首页> 外文期刊>Journal of the Indian Society of Soil Science >Effect of Organic Manures on Soil Physicochemical Properties, Soil Microbial Biomass and Yield of Mustard under Irrigation of Different Residual Sodium Carbonate Waters
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Effect of Organic Manures on Soil Physicochemical Properties, Soil Microbial Biomass and Yield of Mustard under Irrigation of Different Residual Sodium Carbonate Waters

机译：不同残留碳酸钠水灌溉下有机肥对土壤理化性质，微生物微生物量和芥菜产量的影响

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摘要

Field experiment was conducted to workout the effect of different residual sodium carbonate (RSC) waters and organic manures on physicochemical properties, soil microbial biomass and yield of mustard in loamy sand soil during rabi seasons of 2006-07 and 2007-08. The treatments were: Four levels of RSC waters (2, 6, 9 and 12 mmol L~(-1)) and five levels of organic manures (control, recommended dose of N fertilizer, 12t FYM ha~(-1), 5 t poultry manure ha~(-1) and 4 t vermicompost ha~(-1)). Result revealed that under application of 12 mmol L~(-1) RSC of irrigation water whereas the bulk density, pH, CEC and ESP increased significantly, saturated hydraulic conductivity, EC and organic carbon of soil at harvest exhibited a significant decreased. The soilbiological activity like build-up and losses of microbial biomass C, N and P were reduced significantly, while, turnover rate of microbial biomass increased with all the levels of RSC of irrigation water; difference was not significant among water up to6 mmol L~(-1) of RSC. The seed and stover yield of mustard also decreased significantly with increasing levels of RSC. Application of organic manures significantly reduced the saturated hydraulic conductivity; moisture retention at 33 kPa, and 1500 kPa;and available water and organic carbon content of soil. The bulk density, pH, ESP, turnover rate of biomass C, N and P decreased significantly, while CEC of soil at harvest increased significantly with application of 5 t poultry manure ha~(-1). Significant increase was noted in seed and stover yield of mustard under all the organic manures over control and recommended dose of N fertilizer.
机译：进行了田间试验，研究了2006-07年和2007-08年狂旱季节不同残留碳酸钠（RSC）水和有机肥对壤土沙质土壤理化性质，土壤微生物生物量和芥菜产量的影响。处理方法为：四个水平的RSC水（2、6、9和12 mmol L〜（-1））和五个水平的有机肥（对照，氮肥推荐剂量，12t FYM ha〜（-1），5 t家禽粪便ha〜（-1）和4 t mi粪ha〜（-1））。结果表明，在灌溉水量为12 mmol L〜（-1）RSC的条件下，收获时土壤的容重，pH，CEC和ESP显着增加，饱和水导率，EC和有机碳显着下降。土壤微生物活性如微生物量碳，氮和磷的积累和损失显着减少，而微生物量的周转率随着灌溉水的RSC水平的增加而增加; RSC浓度在6 mmol L〜（-1）以下的水之间差异不显着。随着RSC水平的提高，芥菜的种子和秸秆产量也显着下降。有机肥的施用显着降低了饱和的水力传导率。水分保持力分别为33 kPa和1500 kPa;土壤中的有效水分和有机碳含量。施用5t家禽粪便ha〜（-1），其堆积密度，pH，ESP，生物量C，N和P的周转率显着下降，而收获时土壤的CEC显着增加。在所有有机肥的控制和推荐剂量的氮肥下，芥菜的种子和秸秆产量显着增加。

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