สืบค้นงานวิจัย
Effect of DCD and HQ on the Transformation of Urea in Latosol Soil under Rubber Plantation
Plantation Luo Xuehua - ไม่ระบุหน่วยงาน
ชื่อเรื่อง (EN): Effect of DCD and HQ on the Transformation of Urea in Latosol Soil under Rubber Plantation
ผู้แต่ง / หัวหน้าโครงการ (EN): Plantation Luo Xuehua
บทคัดย่อ (EN): Using urea as nitrogen source and aerial incubation method, this paper dealt with the transformation of Urea and the nitrification potential of latosol soils under Rubber Plantation in tropical region and evaluated the effectiveness of Urease inhibitor and nitrification inhibitor, hydroquinone (HQ) and dicyandiamide (DCD), in inhibiting urease and nitrification. The urease activities of latosol soils of the rubber plantation were strong, and no matter whether the Urease inhibitor and nitrification inhibitor were applied to the rubber plantation soils, the urea was hydrolyzed completely within 4 days, and hydrolyzed completely within 1 day especially for the soil (c) mixed cultivation with the green manure and fertilizer. Nitrification potential of soil (c) was much higher than that of soil (a) between rows of rubber tree, the area was not fertilized. The transformed NH4+—N in the soil (c) began to nitrify strongly after incubation 4 days, and almost nitrified completely with the nitrification rate of 92.4% in 14d, and the value of soil (a) was 1.5% in 14d, and its maximal nitrification ratio was only 46.2 %. However the nitrification rate of Da was below 5.2% during the whole incubation 63d; and that of Dc was below 12% before 49d. On condition that the ratio of urea to the soil, DCD to the urea and HQ to the urea was 0.025%, 5%, 0.4% respectively, the hydrolysis of urea was not inhibited evidently. However, the nitrification rate was slowed considerably by addition of HQ and DCD to soil (c) with 49 days and to soil (a) with more than 60 days.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): en
เผยแพร่โดย (EN): การยางแห่งประเทศไทย
คำสำคัญ (EN): Rubber plantation
เจ้าของลิขสิทธิ์ (EN): การยางแห่งประเทศไทย
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Plantation Luo Xuehua. "Effect of DCD and HQ on the Transformation of Urea in Latosol Soil under Rubber Plantation". ไม่ระบุหน่วยงาน. ม.ป.ป.

Plantation Luo Xuehua. "Effect of DCD and HQ on the Transformation of Urea in Latosol Soil under Rubber Plantation". ไม่ระบุหน่วยงาน. ม.ป.ป.. Print.



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Effect of DCD and HQ on the Transformation of Urea in Latosol Soil under Rubber Plantation
Plantation Luo Xuehua
การยางแห่งประเทศไทย
ไม่ระบุวันที่เผยแพร่
Under-Flora in Rubber Plantations: Its Effect on Soil Properties POTENTIAL OF INCREASING THE PLANTING DENSITY OF RUBBER IN SRI LANKA STUDY ON THE POTENCY OF SERRATIA BACTERIA USED TO CONTROL WHITE ROOT DISEASE IN RUBBER ESTIMATION OF WOOD VOLUME BASED ON THE STEM GIRTH IN RUBBER PLANTATION EFFECT OF SILT PITS ON MATURE RUBBER PLANTATION EVOLUTION OF SOIL FERTILITY AND ITS CORRELATION WITH RUBBER TREE LEAF NUTRITION IN RUBBER PLANTATION The Role of Myanmar Rubber Planters and Producers Association (MRPPA) in Natural Rubber Development and its Recent Activities FEASIBILITY OF RUBBER (Hevea brasiliensis Mull. Arg.) CULTIVATION IN THE EASTERN PROVINCE OF SRI LANKA; A NON TRADITIONAL AREA FOR RUBBER IDENTIFICATION OF SUITABLE SPECIES AND GENOTYPES FOR CUT FOLIAGE CULTUVATION ON RUBBER LANDS WHEN TO REPLACE RUBBER PLANTATION IN NIGERIA
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