????????????????????????????????????????????????????????? | Utilization of crab meal on growth and yield of rice
2020
Chaisit Thongjoo(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Kavalin Srichan(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Tawatchai Inboonchuay(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Aunthicha Phommuangkhuk(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Sirinapa Chungopast(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Suchada Karuna(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Sirisuda Bootpetch(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Soil Science) | Chalinee Khongsud(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Research and Academic Service Center) | Thamthawat Saengngam(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Research and Academic Service Center) | Teerayut Klumchaun(Rajamangala University of Technology Thanyaburi, Pathum Thani (Thailand). Faculty of Agricultural Technology) | Siwarot Suwanno(Land Development Department, Bangkok (Thailand). Land Development Regional Office 12. Trang Land Development Station)
The aim of this study was to investigate the effect of crab meal (CM) on growth, yield of rice (var. Suphanburi 1) and some soil properties. Experimental design was completely randomized design (CRD) with 4 replications and consisting of 8 treatments. The study revealed that the CM application of 150 kg/rai in combination with chemical fertilizers (CF) containing all major elements equivalent to 150 kg/rai of the CM gave the highest plant height, tiller/plant, leaf greenness (SPAD unit), panicle/plant, total weight and grain yield which were not different from those of the application of CF containing all major elements equivalent to 300 kg/rai of the CM and the CM application of 300 kg/rai. Furthermore, the CM application of 150 kg/rai in combination with CF containing all major elements equivalent to 150 kg/rai of the CM gave the highest good seed weight which was not different from those of the application of CF containing all major elements equivalent to 300 kg/rai of the CM. At the end of the experiment, it was found that the CM application of 300 kg/rai resulted in the highest soil pH, followed by the CM application of 150 kg/rai in combination with CF containing all major elements equivalent to 150 kg/rai of the CM and the CM application of 150 kg/rai which was not different from the CM application of 75 kg/rai in combination with CF containing all major elements equivalent to 75 kg/rai of the CM. Furthermore, the CM application of 300 kg/rai affected on the highest ECe and available P of soil which was not different from the CM application of 150 kg/rai in combination with CF containing all major elements equivalent to 150 kg/rai of the CM. The CM application of 300 kg/rai also affected on the highest organic matter, exchangeable Ca, Mg and Na of soil, followed by the CM application of 150 kg/rai in combination with CF containing all major elements equivalent to 150 kg/rai of the CM which was not different from the CM application of 150 kg/rai
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