สืบค้นงานวิจัย
Under-Flora in Rubber Plantations: Its Effect on Soil Properties
Joshua Abraham - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Under-Flora in Rubber Plantations: Its Effect on Soil Properties
ผู้แต่ง / หัวหน้าโครงการ (EN): Joshua Abraham
บทคัดย่อ (EN): A case study was undertaken to compare the soil properties and rubber growth and yield in two differently managed mature rubber systems with respect to weed management. The study was undertaken in fields located in the village, Pathampuzha near Palai in Kottayam district. Kerala state, India. Planting in these fields were carried out during 1990-1996 period. All the fields were planted with clone RRII 105 with a spacing of 22’ X 11’. Leguminous cover crop Mucuna bracteata was established in all the fields in the initial years itself. The cover crop existed for about six years and later on other weeds slowly proliferated. Nutrient additions in the form of chemical fertilizers were similar in all the fields under both systems during the initial six to seven years. Afterwards, the weed and nutrient management practices changed. In one set of eight fields, weed control and nutrient additions through chemical fertilizers were continued, while in the other set of eight fields the weeding was restricted to narrow strips in the platform, for the crop harvesting personnel to move around and no fertilizer inputs were made. These practices were continuing while the study was made in 2011. Soil samples were collected from five randomly selected sites at three depths (0-15, 15-30 and 30-45 cm) from each field and analysed for nutrient contents. Annual dry rubber yield of each field also recorded. Moisture status of soil was recorded at two depths viz., 0-15 and 15-45 cm. It could be noticed that during the summer period soil moisture status at 0-15 and 15-45 cm depths were significantly higher in fields where under-flora was not controlled. Organic carbon, total nitrogen and available forms of potassium, magnesium, iron and manganese were significantly higher in all the three layers of soil in fields where under-flora was not controlled. In the 0-15 cm layer, available calcium was more in fields where under-flora was not controlled while it was less in 30-45 cm layer compared to the weed controlled fields. Yield data indicated that, by allowing the growth of under flora in mature rubber plantations, rubber yield was not declining. A management system where moisture status and nutrient contents improve without compromising on rubber yield would be a better agricultural management option.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เอกสารแนบ (EN): https://www.researchgate.net/profile/Joshua-Abraham-9/publication/275039606_Under-flora_in_Rubber_plantations_its_effect_on_soil_properties/links/5530e8020cf2f2a588ab59fc/Under-flora-in-Rubber-plantations-its-effect-on-soil-properties
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): rubber yield
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Joshua Abraham. "Under-Flora in Rubber Plantations: Its Effect on Soil Properties". ไม่ระบุหน่วยงาน. ม.ป.ป.

Joshua Abraham. "Under-Flora in Rubber Plantations: Its Effect on Soil Properties". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Under-Flora in Rubber Plantations: Its Effect on Soil Properties
Joshua Abraham
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Effect of DCD and HQ on the Transformation of Urea in Latosol Soil under Rubber Plantation EFFECT OF SILT PITS ON MATURE RUBBER PLANTATION ESTIMATION OF WOOD VOLUME BASED ON THE STEM GIRTH IN RUBBER PLANTATION POTENTIAL OF INCREASING THE PLANTING DENSITY OF RUBBER IN SRI LANKA Effect of Temperature Constraints on Photosynthesis of Rubber (Hevea brasiliensis) EVOLUTION OF SOIL FERTILITY AND ITS CORRELATION WITH RUBBER TREE LEAF NUTRITION IN RUBBER PLANTATION STUDY ON THE POTENCY OF SERRATIA BACTERIA USED TO CONTROL WHITE ROOT DISEASE IN RUBBER RUBBER FACTORY EFFLUENTS TREATMENT WITH UASB –STABILIZATION POND- OXIDATION DITCH METHOD A TENTATIVE COMPOSITE CLIMATIC INDEX TO PREDICT AND QUANTIFY THE EFFECT OF CLIMATE ON NATURAL RUBBER YIELD POTENTIAL The Role of Myanmar Rubber Planters and Producers Association (MRPPA) in Natural Rubber Development and its Recent Activities
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