Effect of fertilization on forage yield and quality, nutrients uptake and soil properties in the more intensive cropping system

Li, Wen Xi and Lu, Jian Wei and Seneweera, Saman P. and Chen, Fang and Lu, Jun Ming and Li, Xiao Kun (2010) Effect of fertilization on forage yield and quality, nutrients uptake and soil properties in the more intensive cropping system. Journal of Food, Agriculture and Environment, 8 (2). pp. 427-434. ISSN 1459-0255


The sudangrass (Sorghum sudanense) and ryegrass (Lolium multiflorum L.) rotation is a new and more intensive cropping system which has developed rapidly in recent years along Yangtze River in China. However, the optimum nutrient management measures for this new system are lacking. Here, we present a detailed study of the effects of NPK fertilizers on yield and quality of forage, nutrient uptake and soil properties in this rotation system through a three-year field experiment conducted in Jianghan Plain from April 2005 to May 2008. The results showed that the NPK combination obviously improved the yield of sudangrass and ryegrass. Total yields in NPK treatments were 162.7, 114.8 and 145.6 Mg ha-1 in the three years, respectively, and were obviously higher than PK, NK, NP and CK treatments (P < 0.05). In addition, NPK fertilization also improved quality and the nutrient uptake of forage grasses, and N, P and K uptake for NPK treatments was higher than for other treatments. Nutrient output for forage grasses meant the depletion of soil nutrient, and NPK combination fertilization maintained nutrient balance and soil fertility in this intensive cropping system, also decreased excess nutrient in soil. So the proper combination of NPK fertilizers assured higher yield and soil fertility in the more intensive cropping system and provided reference for alleviating availably the contradiction between food security and resource shortage.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 02 Jul 2014 02:31
Last Modified: 03 Jul 2014 02:21
Uncontrolled Keywords: NPK combination; nutrient uptake; soil fertility; sudangrass and ryegrass rotation system; yield
Fields of Research : 07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070306 Crop and Pasture Nutrition
06 Biological Sciences > 0607 Plant Biology > 060701 Phycology (incl. Marine Grasses)
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079902 Fertilisers and Agrochemicals (incl. Application)
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8607 Agricultural Chemicals > 860702 Chemical Fertilisers
URI: http://eprints.usq.edu.au/id/eprint/25412

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