Knowledge Network Node

Effects of Paper Mill Sludge on Potassium, Sodium, Calcium, and Magnesium Concentrations in Different Soybean CultivarsEnglish Full Text

YAN Xiang-Kui, K. W. CHANG and H. L. XUNational Institute for Agro-Environmental Sciences, Tsukuba-shi 305-8506 (Japan).Gansu Agricultural University, Lanzhou, 730070 (China)Agrochemistry Department, Chungnam National University, Kung-Dong, Taejon, 305-764 (Korea) International Nature Farming Research Center, 5632 Hata, Nagano 390-1401 (Japan)

Abstract: A field experiment was conducted on a sandy loam soil at an Experimental Farm in Taejon, South Korea, to determine the effects of paper mill sludge compost application rates on K, Na, Ca and Mg concentrations of soybean (Glycine max (L.) Merr.) aboveground tissues and the genotypic effects on the concentrations of these elements. Sludge compost treatments of 0, 75, and 150 t ha-1 were applied to 30 diverse soybean cultivars. Concentrations of K, Na, Ca, and Mg in aboveground tissues harvested 69 days after planting (DAP) varied with the genotype and the application rate of paper-mill sludge compost, with the sludge compost application rate exerting stronger influence on these concentrations than the genotype. The magnitude of variation caused by both genotype and sludge compost application was in the order of Mg > K > Ca > Na. Significantly positive correlations were observed between K and Na (P < 0.01), Na and Ca (P < 0.05), and Ca and Mg (P < 0.01). Also, the lower the sludge compost application rate, the larger the variation in the concentrations of K, Na, and Ca. From this several cultivars were identified for use as an accumulator for one or more of these elements.
  • Series:

    (D) Agriculture

  • Subject:

    Crop

  • Classification Code:

    S565.1

  • Mobile Reading
    Read on your phone instantly
    Step 1

    Scan QR Codes

    "Mobile CNKI-CNKI Express" App

    Step 2

    Open“CNKI Express”

    and click the scan icon in the upper left corner of the homepage.

    Step 3

    Scan QR Codes

    Read this article on your phone.

  • CAJ Download
  • PDF Download

Download the mobile appuse the app to scan this coderead the article.

Tips: Please download CAJViewer to view CAJ format full text.

Download: 74 Page: 84-94 Pagecount: 11 Size: 646k

Related Literature
  • Similar Article
  • Reader Recommendation
  • Associated Author