Authors
Info
X. Sui1,2, H. Guo3,
Z. Li4,
M. Wang1,2, Y. Wang1,2
and X. Zhang4*
1Shandong Academy
of Agricultural Sciences, Jinan-250 100, China
2Key Laboratory of
East China Urban Agriculture, Ministry of Agriculture, Jinan-250 100, China
3Institute of Resources
and Environment SAAS,
Jinan-250 100,
China
4Shandong Center of
Crop Germplasm Resources,
Jinan-250 100, China
*Corresponding
Author Email :
zxdong2002@163.com
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Abstract
Aim: The study aimed to
assess the effect of corn straw as dairy manure on productivity and profitability
of wheat and then set up fertilization scheme of wheat-corn cropping system.
Methodology: Fourteen
treatments of N, P2O5 and K2O fertilizer was
carried out in the field, where corn was used as silage corn, and dairy
manure was returned to customary field. Yield, wheat price, fertilizer cost
and incidental expense were investigated. The relationship between the amount
of fertilizer and wheat yield was studied. The most economical fertilizer
plan was made according to marginal effect.
Results: The result showed
that dairy manure with N, P2O5 and K2O
influenced the wheat yield components. Significant difference existed among
treatments (P<0.01). Application of corn straw manure increased yield to
3108~5747.55 kg hm-2 which was 163.91~231.78% higher over no
fertilizer treatments. The most economical schemes based on dairy manure and
straw directly returning to field were studied. ?
Interpretation: Corn straw as
dairy manure can reduce the amount of fertilizer, improve wheat yield and
also achieve significant economic benefits.
Key words: Corn silage, Huang-Huai-Hai plain, Optimized
fertilization, Wheat-corn cropping system
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