Analysis on Fertilizer Applied and the Central Factors Influencing Grain Yield of Wheat in the Northern China Plain

doi:10.7668/hbnxb.2008.S1.053

Abstract

Abstract: Aiming to the status which grain yield of wheat wasn??t increase by increasing fertilizer and water quantity,a farmers fertilization inquiry coupled with soil and grain yield analysis was conducted to analyze the central factors influencing grain yield of wheat in Huimin county, Shandong province. The results showed that, the farmer applied about 424kg/ ha N, 226 kg/ ha P₂O₅ and 88 kg/ ha K₂O included organic fertilizer to wheat in invest igated sites, and the amount of N and P fertilizer applied was more than crop N and P uptake. Significant farmer-to-farmer differences in fertilizer ratewere found. Under farmers fert ilization and soil fertility condit ion, grain yield of wheat had close relation with soil organicmatter and spike number per acreage, weak relation with soil Olsen-P and seed number per spike and no relationwith soil exchanged K and weight per thousand seeds. Added increment of fertilizer didn??t increase grain yield of wheat with the farmers fertilization practice because of high N and P fertilizer applied and high soil exchanged K content.

Key words: Fertilizer quantity, Soil fertility, Yield components, Organic matter, Spike number per acreage

CLC Number:

S512.1

CUI Zhen-ling, CHEN Xin-ping, ZHANG Fu-suo, XU Jiu-fei, SHI Liwei, LI Jun-liang. Analysis on Fertilizer Applied and the Central Factors Influencing Grain Yield of Wheat in the Northern China Plain[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S1): 224-229. doi: 10.7668/hbnxb.2008.S1.053.

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