สืบค้นงานวิจัย
ESTABLISHMENT OF STANDARD VALUES FOR NUTRITIONAL DIAGNOSIS IN SOIL AND LEAVES OF IMMATURE RUBBER TREE
Saichai Suchartgul - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): ESTABLISHMENT OF STANDARD VALUES FOR NUTRITIONAL DIAGNOSIS IN SOIL AND LEAVES OF IMMATURE RUBBER TREE
ผู้แต่ง / หัวหน้าโครงการ (EN): Saichai Suchartgul
บทคัดย่อ (EN): Standard values for nutrient assessment are required for integrated nutrient management (INM) of crop production. The INM was used in order to maximize growth or yield and sustain soil quality in the same time. This study was aimed to establish standard values for immature rubber tree. A nutrient survey was carried out during June – July 2009 in the east coast of Chumporn, Surat Thani and Nakhon Si Thammarat provinces. The data were collected from 43 farmers who grew rubber of the RRIM 600 variety. The girths at 150 cm height of 4 year-old rubber were measured in 100 trees from each plantation. Soil and leaves were sampled in the area of girth measured trees. The samples were analyzed for chemical properties and nutrient concentrations. Correlations between the obtained values and mean girths were fitting by a quadratic equation. The result of tentative standard values revealed that the optimum ranges for soil pH, base saturation, and exchangeable acidity were 4.5 – 5.0, 25 - 75 % and 10 – 30 mmol(+)/kg respectively. The optimum ranges for P (Bray 2), K (1 M NH4OAc pH 7), Ca (1 M NH4OAc pH 7), S (0.01 M KH2PO4), Fe (DTPA), Cu (DTPA), Zn (DTPA), and B (hot 0.01 M CaCl2) concentrations in soil were 10 - 20, 40 - 80, 50 - 600, 25 - 35, 30 - 90, 0.5 - 1.5, 0.5 - 1.5 and 0.3 - 0.7 mg/kg respectively. The optimum ranges for K/Mg, K/Ca and Mg/Ca in soil were 2.0 – 6.0, 0.4 – 1.4 and 0.2 – 0.6 respectively. The optimum ranges for N, P, K, Ca, Mg and S concentrations in leaves were 3.2 – 3.8, 0.25 - 0.30, 1.0 - 1.4, 1.0 - 1.5, > 0.35 and 0.2 - 0.3 % respectively, and for Fe, Mn, Cu, and B were 90 - 130, 300 - 500, 10 - 15, and 40 - 80 mg/kg respectively. The optimum ranges for K/Mg, K/Ca and Mg/Ca in leaves were 3.0 – 4.2, 0.8 – 1.4 and 0.3 – 0.5 respectively. The optimum ranges of CEC, Mg in soil, Mn in soil and Zn in leaves were unable to establish.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): nutritional diagnosis
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Saichai Suchartgul. "ESTABLISHMENT OF STANDARD VALUES FOR NUTRITIONAL DIAGNOSIS IN SOIL AND LEAVES OF IMMATURE RUBBER TREE". ไม่ระบุหน่วยงาน. ม.ป.ป.

Saichai Suchartgul. "ESTABLISHMENT OF STANDARD VALUES FOR NUTRITIONAL DIAGNOSIS IN SOIL AND LEAVES OF IMMATURE RUBBER TREE". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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ESTABLISHMENT OF STANDARD VALUES FOR NUTRITIONAL DIAGNOSIS IN SOIL AND LEAVES OF IMMATURE RUBBER TREE
Saichai Suchartgul
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Recent advances on biotechnology in rubber tree Is impeded root growth related to the occurrence of rubber tree Trunk Phloem Necrosis (TPN)? Preliminary results from NE Thailand EVOLUTION OF SOIL FERTILITY AND ITS CORRELATION WITH RUBBER TREE LEAF NUTRITION IN RUBBER PLANTATION Correlations of some Soil Chemical Properties, Leaf Chlorophyll content and Growth during Immature Phase of Rubber Tree ANALYSIS OF PRETREATMENT METHODS OF WASTE RUBBER TREE FOR EFFECTIVE CELLULOSE DEGRADATION Components Analysis of Different Solvents Extracts from Rhizosphere soil of Rubber Tree by GC－MS RUBBER TREE TRUNK PHLOEM NECROSIS IN NORTHEAST THAILAND: 1-INVESTIGATIONS ON SOIL HETEROGENEITIES AND DISEASE DISTRIBUTION Nutrient Status of Soils and Leaves of Immature Rubber in the East Coast of Upper Part of Southern Thailand MEASUREMENTS OF RUBBER TREE TRANSPIRATION IN ADULT PLANTATIONS Under-Flora in Rubber Plantations: Its Effect on Soil Properties
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