Study on the Absorption Rules of Nitrogen and Phosphorus Nutrients of Oil Sunflower Under Different Fertilizing Conditions(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2012年17期

Page:

178-183

Research Field:

Publishing date:

Info

Title:

Study on the Absorption Rules of Nitrogen and Phosphorus Nutrients of Oil Sunflower Under Different Fertilizing Conditions

Author(s):

WANG Xiao-jun¹; HE Wen-shou¹; MA Ting-ji²; WANG Qin-fang³; WANG Qin⁴; WANG Hai-jun⁵

1.Department of Agricultural，Ningxia University，Yinchuan,Ningxia 750021；

2.Forest Farm of Zhao Qianhu,Forest Bureau of Guyuan,Guyuan,Ningxia 756200；

3.Xingtai Construction Company of Xiji County,Xiji,Ningxia 756209；

4.Forest Bureau Forest Farm of Yueliang Mountain of Xiji Country Ningxia，Xiji,Ningxia 756209；

5.Ningxia Xinerte Chemical Limited Company,Yinchuan,Ningxia 75002

Keywords:

N; P nutrients; yield; upland soil; semi-dry area

PACS:

S 565.5

DOI:

-

Abstract:

By investigation and analysis，field experiment method,the dry soil conditions in sunflower oil absorption nitrogen phosphorus fertilizer characteristics and the absorption of nitrogen phosphorus fertilizer to rule of stuy were studied.The results showed that the different thickness(0～20 cm)and(20～40 cm) soil on the absorption of nutrients，dynamic characteristics of the changes of the present in the test conditions.N 270 kg/hm² absorption nitrogen when were 47.5 mg/kg and 35.7 mg/kg，under 24.8%,crop yield of 2 604.0kg/hm²，100.05 kg/hm² P fertilization absorbing phosphorus were 28.4 mg/kg and 21.5 mg/kg,under 24.2%，crop yield of 3 199.5 kg/hm².

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