สืบค้นงานวิจัย
Correlations of some Soil Chemical Properties, Leaf Chlorophyll content and Growth during Immature Phase of Rubber Tree
Krissada Sangsing - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Correlations of some Soil Chemical Properties, Leaf Chlorophyll content and Growth during Immature Phase of Rubber Tree
ผู้แต่ง / หัวหน้าโครงการ (EN): Krissada Sangsing
บทคัดย่อ (EN): Some soil chemical properties, leaf chlorophyll content and growth during immature phase of rubber tree were studied in the non-traditional area of Thailand during 2004-2009. The objectives of this study were (1) to assess rubber plant growth (2) to establish the correlations between some soil chemical properties and leaf chlorophyll content with their growth and (3) to use the data for suitable fertilizer applying in each specific area immediately. Non-probabilities sampling of forty-six smallholders farming whose have RRIM 600 clone and plant age during 2-4 years were chosen. All sampling area located at 16.84 to 21.12 ON latitude and 21-522 m. altitude above sea level. Wide variations of soil chemical property comparing among samplings area were found. Soil pH, organic matter, available phosphorus, exchangeable potassium, calcium and magnesium levels ranged from 4.2 to 7.9, 0.27-3.47 %, 2.5-69.5 ppm, 20-399 ppm , 62-4325 ppm and 6-718 ppm, respectively. For leaf chlorophyll content level, it ranged from 3.80 to 6.51 mg/dm2. Positive correlations of monthly girth increment (MGI) with relative growth rate (RGR) and total chlorophyll content were found. On the contrary, negative correlations of MGI with soil pH, exchangeable potassium, calcium and magnesium levels were found. However, it didn’t be to find the correlations between MGI with soil organic matter and available phosphorus due to sufficiently in soil sampling.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): organic matter
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

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Correlations of some Soil Chemical Properties, Leaf Chlorophyll content and Growth during Immature Phase of Rubber Tree
Krissada Sangsing
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase EVOLUTION OF SOIL FERTILITY AND ITS CORRELATION WITH RUBBER TREE LEAF NUTRITION IN RUBBER PLANTATION ESTABLISHMENT OF STANDARD VALUES FOR NUTRITIONAL DIAGNOSIS IN SOIL AND LEAVES OF IMMATURE RUBBER TREE The Role of Myanmar Rubber Planters and Producers Association (MRPPA) in Natural Rubber Development and its Recent Activities Under-Flora in Rubber Plantations: Its Effect on Soil Properties EFFECTS OF PHOSPHORUS, COWPEA RESIDUES AND LIME ON SOIL PROPERTIES, GROWTH AND MINERALS CONTENT OF MAIZE (Zea mays L.) IN YASOTHON SOIL. FEASIBILITY OF RUBBER (Hevea brasiliensis Mull. Arg.) CULTIVATION IN THE EASTERN PROVINCE OF SRI LANKA; A NON TRADITIONAL AREA FOR RUBBER Soybean growth and related soil N in a sandy soil under chemical fertilizer, poultry manure, and bentonite additions The dynamic linkage among the size, growth and profitability of listed companies in the ASEAN-4 countries Organic and chemical fertilizers have varied effects on tomato growth in a sandy soil
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