Effects of Continuous Application of Rice Straw Compost on Chemical and Physical Properties of Soil in an Upland Field

DOI JASI Web Site 4 Citations

Bibliographic Information

Other Title
  • 稲わら堆肥の連用が沖積畑土壌の理化学性に与える影響
  • イナワラ タイヒ ノ レンヨウ ガ チュウセキ ハタドジョウ ノ リカガクセイ

Search this article

Abstract

In a vegetable upland field of alluvial soil, an experiment was carried out for twelve plots in four mineral plot of applying nitrogen, phosphoric acid, potassium and lime, non-fertilizer plot, non-nitrogen plot of applying nitrogen, phosphoric acid, potassium and lime, non-fertilizer plot, non-nitrogen plot, non-phosphoric acid plot, non-potassium plot and non-lime plot with compost application of 20 Mg ha^<-1> or non-compost application during twenty-five years. Chemical and physical properties of soil were investigated in detail. 1. By continuous application of rice straw compost, content of total carbon and total nitrogen in soil increased not only in the Ap horizon but also in the AB and B horizon. Amounts of total carbon and total nitrogen that accumulated in soil for twenty-one years were 10.2 Mg ha^<-1> and 1.12 Mg ha^<-1>, respectively. 2. In Ap horizon of non-nitrogen plot, the pH was 7.3 and the base saturation percentage about 130%. On the other hand, in Ap horizon of non-lime plot, the pH was 4.2 and the base saturation percentage about 40%. 3. By continuous application of rice straw compost, physical property of soil in A pand AB horizon was obviously improved because of the increase of macro-pore rate and the decrease of penetration resistance value.

Journal

Citations (4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top