สืบค้นงานวิจัย
Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase
Debasis Mandal - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase
ผู้แต่ง / หัวหน้าโครงการ (EN): Debasis Mandal
บทคัดย่อ (EN): Field experiment on growth performance of high yielding RRII 400 series clones of rubber (Hevea brasilinesis) viz. RRII 417. RRII 429 and RRII 430 with RRIM 600 as check clone, was studied during 2004-2011 under the agro climatic conditions of Tripura. Influence of higher doses of NPK fertilizers on growth of these clones during immature phase of plantation was also investigated. At the end of seventh year of plantation, the clone RRII 429 registered highest girth (51.5 cm) followed by RRIM 600 (49.6 cm) and the clone RRII 417 (47 cm) as least. Highest tappability was observed for the clone RRII 429 (67.1%), whereas tappability of other three clones ranged from 47.7-60.1 percent only. The clone RRII 429 showed significant response towards application of NPK fertilizers. At the end of six year of plantating, the clone RRII 429 registered a mean girth of 50.6 cm and 73.3% plants attained tappable girth upon application of 150% NPK. The other three clones required at least seven years or more to register a mean girth of 50cm and to attain 70% tappability. The result showed immaturity period of RRII 429 could be reduced at least by six months to one year by applying higher doses of NPK (150% of RDF). Application of higher doses of NPK fertilizers in soils showed a significant improvement for organic carbon (OC) and available phosphorus, particularly at surface layer; however a gradual decline in available potassium-balance was recorded in rubber soils inspite of regular application of potasic fertilizer indicating potassium vulnerability of soils under rubber in Tripura.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): tappability
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Debasis Mandal. "Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase". ไม่ระบุหน่วยงาน. ม.ป.ป.

Debasis Mandal. "Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase
Debasis Mandal
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Evaluation of ground basalt as soil amelioration in relation to growth and nutrition of Hevea brasiliensis grown in polybags IMPROVEMENT AND APPLICATION OF THE TECHNIQUE OF MINI-SEEDLING BUDDING OF HEVEA BRASILIENSIS BIOMOLECULES CONTENTS AND RUBBER PROPERTIES OF SOME HEVEA BRASILIENSIS CLONES Evaluation of Rubber (Hevea brasiliensis) Modern Clones under Certain Stressful Climatic Conditions of Odisha Identification of Rubber Clones (Hevea brasiliensis) Using Inter Simple Sequence Repeat (ISSR) Markers Effect of Temperature Constraints on Photosynthesis of Rubber (Hevea brasiliensis) Some Considerations Concerning the Yield Potential of Some Clones (Hevea brasiliensis) FEASIBILITY OF RUBBER (Hevea brasiliensis Mull. Arg.) CULTIVATION IN THE EASTERN PROVINCE OF SRI LANKA; A NON TRADITIONAL AREA FOR RUBBER Effectiveness of activated biochar from rubber (Hevea brasiliensis) seed shells and epicarp as an amelioration material against pesticide residues in soil Correlations of some Soil Chemical Properties, Leaf Chlorophyll content and Growth during Immature Phase of Rubber Tree
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