classification of paddy soil

Soil samples of current paddy soils,ancient paddy soil/ancient dry land soil,and bottom soils were collected from two sites in Chuodunshan Site of Majiabang Culture(about 6 000a).

kg-1,主要来源于大气沉降;古水稻土中PAHs含量明显降低,仅为56。

Previous studies suggested that two layers of ancient paddy soils existed in Holocene strata at the lower Changjiang River delta region in China,but little evidence of soil chemical and physical data has been offered up to now.

前人研究认为,在长江下游地区绰墩农业遗址的全新世地层中存在2个古水稻土层,但到目前为止尚缺乏土壤化学和物理学方面的证据。

Soil Nutrients Status in Paddy Field in Wanning,Hainan Province

海南省万宁市水稻土壤养分状况研究

Ethylicin Residue in Water, Soil and Rice

稻田水、土壤和稻米中乙蒜素的残留

Study on Rules of Mn Uptake by Early and Late Rice at Different Growth Stages in Paddy Soil Derived from Red Earth

红壤性水稻土早、晚稻吸锰规律的研究

STUDY ON THE ESSENCE OF SOIL FERTILITY--Ⅳ. PADDY SOIL

土壤肥力实质的研究——Ⅳ.水稻土

Effects of long-term K fertilization on rice yield and soil K status in reddish paddy soil

长期施钾对红壤水稻土水稻产量及土壤钾素状况的影响

Analysis of Soil Water Characters Between Upland Red Soil and Paddy Soil

旱地红壤与红壤性水稻土水分特性分析

Mechanism of Soil N Supply in Paddy Soil and Reaching Optimal N Application for Rice;

稻田土壤供氮机理及水稻氮肥优化施用研究

Determination of Paichongding (IPP) Residues in Paddyfield Water, Soil and Rice Straw by Liquid Chromatography

哌虫啶在稻田水–土壤及稻株中的残留分析方法

EFFECTS OF THE SYSTEM OF RICE INTENSIFICATION ON SOIL BIOLOGICAL PROPERTIES

水稻强化栽培对稻田土壤生物学特性的影响

Residue Dynamics of Thiram in Rice and Paddy Soil

福美双在水稻和稻田土壤中残留动态研究

Research on Characteristics of Nitrification in Rhizosphere Soil Growing with Different Rice Cultivars;

不同水稻品种根际土壤硝化特征研究

Responses of Rice to Cadmium in Soil and Their Regulations;

水稻对土壤重金属镉的响应及其调控

Effects of Bt Transgenic Rice on Soil Ecosystem;

转Bt基因水稻对土壤生态系统的影响

Primary Study on the Leaching Behaviors of Fipronil in Paddy Soil and Red Soil

氟虫腈在水稻土和红壤中的淋溶研究

CHARACTERISTICS OF ORGANIC MATTERS IN PADDY SOILS DERIVED FROM DARK BROWN SOIL AND RED SOIL

起源于暗棕壤和红壤的水稻土有机质特性研究

Effects of Soil Texture and Water Content on the Mineralization of Soil Organic Carbon in Paddy Soils

土壤质地和水分对水稻土有机碳矿化的影响

c)Among various soil types,erosion on yellow soil and lime soil is most prominent,besides them are red soil,yellow brown soil,paddy soil,brown soil,dark brown forest soil,laterite soil,brown soil,lateritic red soil and black clay soil.

在各种土壤类型中,黄壤和石灰土的土壤侵蚀最为突出,其次为红壤、黄棕壤和南方水稻土等;

An ample water supply is probably the greatest advantage of soil submergence for irrigated rice.

大量供水可能对灌溉水稻淹水土壤有很大好处。