Irrigation, Phosphorus Fertilizer and Phosphorus Solubilizing Microorganism Effects on Yield and Forage Quality of Turnip (Brassica rapa L.) in an Arid Region of Iran

被引：12

作者：

R. Keshavarz Afshar

M. R. Chaichi

H. Moghadam

S. M. R. Ehteshami

机构：

[1] Department of Agronomy and Plants Breeding, College of Agriculture, University of Tehran, Karaj

[2] Department of Agronomy, Faculty of Agriculture, University of Guilan, Rasht

来源：

Agricultural Research | 2012年 / 1卷 / 4期

关键词：

Biological fertilizer; Crude protein; Forage quality; Forage yield; IVDMD;

D O I：

10.1007/s40003-012-0039-1

中图分类号：

学科分类号：

摘要：

Turnip has a high potential to produce abundant nutritious and valuable forage when availability of perennial warm and cool-season species is limited. Water deficit and fertility affect not only growth and yield of crops but also their quality and nutritional value. To evaluate the effect of different phosphorous fertilizers on forage yield and quality of turnip under deficit irrigation regimes, a field experiment was conducted during 2009. The experimental treatments arranged as split plots were five levels of irrigation, no irrigation (IR0), irrigation at sowing time (IR1), irrigation at sowing time + commencement of tuber formation (IR2), (irrigation at sowing time + commencement of tuber formation + commencement of stem elongation (IR3) and normal irrigation (IRN), assigned to main plots and four levels of fertilizers, no fertilizer (FCo), 100 % FCh (100 % chemical fertilizer), seed inoculation by Pseudomonas putida (FBi), 50 % FCh + FBi, assigned to subplots. The maximum forage yield was obtained at IRN, which followed a decreasing trend as the number of irrigations decreased. The best phosphorous fertilizer treatments affecting forage yield were 100 % FCh and 50 % FCh + FBi in sequence. As the water stress increased, in vitro dry matter digestibility (IVDMD), metabolizable energy, and protein yield followed a decreasing trend while in the same situation the crude protein, water soluble carbohydrates, acid detergent fiber, and ash content followed an increasing trend. © 2012 NAAS (National Academy of Agricultural Sciences).

引用

页码：370 / 378

页数：8

共 43 条

[1]

Araus J.L., Bort J., Steduto P., Villegase D., Royo C., Breeding cereals for Mediterranean conditions: ecophysiological clues for biotechnology application, Ann Appl Biol, 142, pp. 129-141, (2003)

[2]

Arpana N., Kumar S.D., Prasad T.N., Effect of seed inoculation, fertility and irrigation on uptake of major nutrients and soil fertility status after harvest of late sown lentil, J Appl Biol, 12, pp. 23-26, (2002)

[3]

Asay K.H., Jensen K.B., Waldron B.L., Han G., Johnson D.A., Monaco T.A., Forage quality of tall fescue across an irrigation gradient, Agron J, 94, pp. 1337-1343, (2002)

[4]

Official methods of analysis, (1999)

[5]

Aulakh M.S., Garg A.K., Kabba B.S., Phosphorus accumulation and leaching, and residual effects on crop yields from long-term applications in subtropics, Soil Use Manag, 23, pp. 417-427, (2007)

[6]

Buxton D.R., Mertens V., Fisher D.S., Forage quality and ruminant utilization, Cool-season forage grasses, pp. 229-266, (1996)

[7]

Collins M., Nitrogen effects on yield and forage quality of perennial ryegrass and tall fescue, Agron J, 83, pp. 588-595, (1991)

[8]

Feeding standards for Australian ruminants, standing committee on agriculture and resource management, (1990)

[9]

Day A.D., Ludeke K.L., Plant Nutrients in Desert Environment, (1992)

[10]

Dubois M., Gilles K.A., Hamilton J.K., Rebes P.A., Smith F., Colorimetric method for determination of sugars and related substances, Anal Chem, 28, pp. 350-356, (1956)

← 1 2 3 4 5 →