SELECTION OF TIDAL LOCAL VARIETY RICE AND COMPOST UTILIZATION IN RICE FIELD CONTAMINATED WITH ACID MINE DRAINAGE
Journal Title: Academic Research International - Year 2013, Vol 4, Issue 6
Abstract
The objectives of the research were to find out the response differences of local variety rice crops and the soil chemical properties added with compost in the fields contaminated with acid mine drainage, and to produce the cultivars of local rice which are tolerant and adaptive, with the proper provision of compost showing the best result. The result of the research indicated that: (1) the contamination of acid mine drainage reduced the soil pH by 27.4 %, increased the dissolved Fe by 51.6 %, and reduced the available P by 30.1 %. The provision of compost until 15 t ha-1 did not affect pH and element N in the soil. The increase in pH was only 5.86 % compared to pH in the field without compost. The higher the dose of compost was added, the more the content of organic C, P and K would increase, and conversely the more the dissolved Fe would decrease; (2) the provision of compost did not affect the characters of the crop height, the tiller number, and the tassel number, except the empty grain. The higher the dose of compost was added, the number of empty grains tended to decline. The growth of crop height, tiller number and tassel number of the local rice varieties were higher than those of superior variety Ciherang (control); (3) the interaction of compost with rice varieties showed the effect on the grain number, the 1000 seed weight, and the grain yield (t ha-1). The provision of compost with the dose of 15 t ha-1 to Siam Unus variety could increase the grain number, the grain content and the grain yield (4.72 t ha-1), followed by Siam Runut. The higher the dose of compost was added, the more the tassel number, the grain number, the grain content and the grain yield would increase.
Authors and Affiliations
Bambang Fredrickus, Nur Basuki Basuki, Dawam Maghfoer
Keywords
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