สืบค้นงานวิจัย
Combined use of contrasting quality organic residues and chemical fertilizers for corn growth in a sandy soil
Sisavanh Xayavong - มหาวิทยาลัยขอนแก่น
ชื่อเรื่อง (EN): Combined use of contrasting quality organic residues and chemical fertilizers for corn growth in a sandy soil
ผู้แต่ง / หัวหน้าโครงการ (EN): Sisavanh Xayavong
หน่วยงานสังกัดผู้แต่ง:
  1. มหาวิทยาลัยขอนแก่น
บทคัดย่อ (EN): A plant bioassay experiment was conducted to evaluate the effects of residue quality (chemical composition with respect to N, lignin, and polyphenol contents), chemical fertilizers, and their interactions, on plant nutrient availability and growth. Corn plants were grown in pots containing sandy soils taken from a long-term field experiment in which five levels of contrasting quality residues were applied annually for 20 years. The residue treatments included: (i) unamended (control, CT), (ii) rice straw (RS), (iii) groundnut stover (GN), (iv) dipterocarp freshly fallen leaf litter (DP), and (v) tamarind freshly fallen leaf and petiole litter (TM). The soils from the field experiment were treated with 2 different chemical fertilizer management practices with (70.3 N, 30.7 P, and 58.4 K kg/ha) or without fertilizers. Under the sole residue treatments, only high-quality GN [N-rich (21 g/kg)] produced a significantly higher biomass than CT. However, for the residue plus fertilizers treatments, all the residues significantly increased biomass relative to CT, with the highest biomass found in GN. Similar results were found in plant uptake of N and P. TM did not enhance growth to the same extent as GN due to the lower quality of TM [low N content (12 g/kg) and high polyphenols]. For the high-K residues GN (25 g/kg) and RS (14), GN had resulted in lower concentration and uptake of K in the plants than RS. For low-K residues, TM (6 g/kg) and DP (4), TM produced a lower concentration and uptake of K than DP. Both legume residues had a high Ca content (21 and 35 g/kg, respectively). This produced a high Ca/K ratio of 2 and 7 under GN and TM, respectively. These values were higher than the Diagnosis and Recommendation Integrated System (DRIS) norm ratio of 0.3. The antagonistic effects of Ca on K are discussed.
บทคัดย่อ: ไม่พบข้อมูลจากหน่วยงานต้นทาง
ภาษา (EN): th
จำนวนหน้า: 10
เอกสารแนบ: https://ag2.kku.ac.th/kaj/PDF.cfm?filename=20 Sisavanh1.pdf&id=3229&keeptrack=4
เผยแพร่โดย: มหาวิทยาลัยขอนแก่น
คำสำคัญ (EN): secondary nutrients
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การอ้างอิง

Sisavanh Xayavong. "Combined use of contrasting quality organic residues and chemical fertilizers for corn growth in a sandy soil". มหาวิทยาลัยขอนแก่น. 2558

Sisavanh Xayavong. "Combined use of contrasting quality organic residues and chemical fertilizers for corn growth in a sandy soil". มหาวิทยาลัยขอนแก่น. 2558. Print.



TARR Wordcloud:
Combined use of contrasting quality organic residues and chemical fertilizers for corn growth in a sandy soil
Sisavanh Xayavong
มหาวิทยาลัยขอนแก่น
2558
Organic and chemical fertilizers have varied effects on tomato growth in a sandy soil Effects of different quality organic residues applied yearly for the long term on dissolved organic matter dynamics in a sandy soil Soybean growth and related soil N in a sandy soil under chemical fertilizer, poultry manure, and bentonite additions EFFECTS OF PHOSPHORUS, COWPEA RESIDUES AND LIME ON SOIL PROPERTIES, GROWTH AND MINERALS CONTENT OF MAIZE (Zea mays L.) IN YASOTHON SOIL. Dynamics of soil organic matter and humic acid contents as influenced by land use changes Immobilization of Cadmium in Contaminated Soil Using Organic Amendments and Its Effects on Rice Growth Performance Correlations of some Soil Chemical Properties, Leaf Chlorophyll content and Growth during Immature Phase of Rubber Tree Influence of NPK Fertilizers on Growth of RRII 400 Series Clones of Rubber (Hevea Brasiliensis) and Soil Properties in Tripura during Immature Phase The impacts of tillage, soil conditioners, and chemical fertilizer on yield of cassava in Yasothon Soil Series (Typic Paleustult), relationship between nutrient concentration and cassava yield compone Distribution of some macronutrients in soil profiles as influenced by land use changes
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