PEAT RESOURCE IN SHANJIANG PLAIN AND ITS UTILIZATION IN AGRICULTURE
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    Abstract:

    With plenty of peat resources,Shanjiang Plain has a reserve amounting to 1.2-1.5 billion cubic meters.Most of them belong to the eutrophic low moor peat.Peat is 1.5 billion cubic meters.Most of them belong to the eutrophic low moor peat.Peat is an escelle}nt resource of organic matter which can be used for reclamation of soils and preparation of organic fertilizers.Peat is rich in organic matter (about 60% of dry matter weight),humie acids (more than 30%) and nitrogen (1.8%).Its water-holoing capacity is np to 500-900% and its adsorption capacity of ammonia can be up to 1%.Experiments showed that peat could be used for the improvement of soil physical and eh}emicsl conditions such as inereasing the content of soil organic matter by 1-1.5%,the total nitrogen content by 0.02-0.06%,the total porosity by 7-10%,the water content by 5-6% and decreasing the volume weight of soil by 0.1-0.2 g/cm2 and consequently increasing crop yields by 10-30%.Its residual effect could be maintained for more than three years.The optimum dose of peat applied directly to the field was 10-15 m3/mu.Peat application mixed with adequate amounts of water-soluble nitrogenous and phosphoric fertilizers,especially with the latter,could raise its effect on early ripeness and high yield of crops.A series of methods for application of peat and preparation of organic fertilizer were studied in the past four years.The results showed that in addition to direct application to the soils,peat can be also mixed with animal excreta and night soil,and it can be aced for bedding and composting,and preparation of hnmicfertilizers.

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Zeng Guangji, Sun Tienan, Yuan Lihai, He Wanyun. PEAT RESOURCE IN SHANJIANG PLAIN AND ITS UTILIZATION IN AGRICULTURE[J]. Acta Pedologica Sinica,1984,21(3):291-298.

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  • Online: February 25,2013
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