สืบค้นงานวิจัย
Available phosphorus declines in organic residues-treated sandy soils indicating its transformation to more slowly available forms for phosphorus conservation
Somchai Butnan - มหาวิทยาลัยขอนแก่น
ชื่อเรื่อง (EN): Available phosphorus declines in organic residues-treated sandy soils indicating its transformation to more slowly available forms for phosphorus conservation
ผู้แต่ง / หัวหน้าโครงการ (EN): Somchai Butnan
หน่วยงานสังกัดผู้แต่ง:
  1. มหาวิทยาลัยขอนแก่น
บทคัดย่อ (EN): Reducing fertilizer phosphorus (P) input in the face of global P exhaustion is desirable. This study investigated the effects of long-term application of different quality plant residues on changes in available P concentrations in a tropical coarse-textured soil. Five residue treatments were annually applied to the sandy Khorat soil including (i) unamended (control, CT), two legume residues including (ii) groundnut (GN) stover and (iii) leaf + petiole litter of tamarind (TM), and two non-legume residues including (iv) rice straw (RS) and (v) leaf litter of dipterocarp (DP). After 20 years of residue application, available P concentrations in legumes (25.9 mg kg-1 for GN and 26.8 mg kg-1for TM) were comparable to the CT (29.2 mg kg-1), but they were lower in the non-legumes (14.2 mg kg-1 for RS and 16.9 mg kg-1 for DP). Soil organic carbon content had positive effects on available P concentrations (r2 = 0.770***) as did the exchangeable Ca (r2 = 0.461* ). The negative effects were found in pH (r2 = 0.386* ) and exchangeable K concentrations (r2 = 0.605**). The results highlighted the influence of soil organic matter (SOM) and Ca in sustaining P in the potentially available forms in tropical coarse-textured soils. Possible mechanisms underlying effects of SOM and other related soil properties on changes in soil available P are discussed.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): th
จำนวนหน้า: 6
เอกสารแนบ: https://ag2.kku.ac.th/kaj/PDF.cfm?filename=P119 Soi02.pdf&id=3162&keeptrack=4
เผยแพร่โดย: มหาวิทยาลัยขอนแก่น
คำสำคัญ (EN): Sustainability
หากไม่พบเอกสารฉบับเต็ม (Full Text) โปรดติดต่อหน่วยงานเจ้าของข้อมูล

การอ้างอิง

Somchai Butnan. "Available phosphorus declines in organic residues-treated sandy soils indicating its transformation to more slowly available forms for phosphorus conservation". มหาวิทยาลัยขอนแก่น. 2561

Somchai Butnan. "Available phosphorus declines in organic residues-treated sandy soils indicating its transformation to more slowly available forms for phosphorus conservation". มหาวิทยาลัยขอนแก่น. 2561. Print.



TARR Wordcloud:
Available phosphorus declines in organic residues-treated sandy soils indicating its transformation to more slowly available forms for phosphorus conservation
Somchai Butnan
มหาวิทยาลัยขอนแก่น
2561
Effects of different quality organic residues applied yearly for the long term on dissolved organic matter dynamics in a sandy soil Combined use of contrasting quality organic residues and chemical fertilizers for corn growth in a sandy soil Available Boron Status and Its Relationships with Physico-Chemical Properties of Soils under Rubber Cultivation in North-East India Phosphorus distribution and loss in the livestock sector - The case of Thailand Phosphorus leakage from fisheries sector – A case study in Thailand Green residues from Bangkok green space for renewable energy recovery, phosphorus recycling and greenhouse gases emission reduction EFFECTS OF PHOSPHORUS, COWPEA RESIDUES AND LIME ON SOIL PROPERTIES, GROWTH AND MINERALS CONTENT OF MAIZE (Zea mays L.) IN YASOTHON SOIL. HR Transformation คือ อะไร Organic and chemical fertilizers have varied effects on tomato growth in a sandy soil Quantification of phosphorus flows throughout the consumption system of Bangkok Metropolis, Thailand
คัดลอก URL
กระทู้ของฉัน
ผลการสืบค้นทั้งหมด โพสต์     เรียงลำดับจาก
พัฒนาระบบโดยศูนย์ความรู้เฉพาะด้านวิศวกรรมความรู้และวิศวกรรมภาษาDeveloped by Center of Excellence for Unified Knowledge and Language Engineering
สนับสนุนโดยสำนักงานพัฒนาการวิจัยการเกษตร (องค์การมหาชน)Supported by the Agricultural Research Development Agency (Public Organization)
แบบสำรวจความพึงพอใจQuestionair