ABILITY OF BLACK SOIL SUPPLYUING POTASSIUNAND EFFECTOF POTASIC FERTILIZER ON SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2002年01期

Page:

36-42

Research Field:

Publishing date:

Info

Title:

ABILITY OF BLACK SOIL SUPPLYUING POTASSIUNAND EFFECTOF POTASIC FERTILIZER ON SOYBEAN

Author(s):

Han Xiaozeng¹Wang Shouyu¹Liu Xiaojie²

1.Heilongjiang Inst itute of Agricul tural Modernizat ion , CAS , Harbin 150040 ;

2.National Soybean Engineering and Technique Research Center , Harbin

Keywords:

Black soil ; Providing Kalium ; Soy bean ; Kalium fertilizer

PACS:

S 158.3

DOI:

10.11861/j.issn.1000-9841.2002.01.0036

Abstract:

The black land is dist ributed in a narrow area from south to no rth in northeast of China nine soil sampleswi th high , middle and low fertility were collected in the field of south , north and middle area .These sampleswere analyzed in laborato ry , and po t experiment w as performed mainly in Harbin .The result s showed thatBlack soil has high potent ial of providing kalium , the concentration of available kalium in the soil w as 121 -212mg·kg-1 in dif ferent fertili ty soils and different place ;the slow ly available kalium was 656 -1256 mg ·kg-1 , all of w hich are of middle or high level .The content of kalium is suf ficient for soybean grow th under normalproduction condit ions and there no effect on increasing y ield .Under drought condition , the kalium increasedy ield by 15 .6 %.Under the condition of serious plant diseases and insect pests , the kalium increased the yield by10 .5 %-22 .6 % under soy bean follow ing o ther crops and by 11 .6 %-23 .8 % under continuous cropping .Increasingthe N and P applicatio n singly for high yield , there w ould be no increasing ef fect in yield .But if the N ,P and K w ere increased at the same time , the yield w ould be increased by 8 .6 %.

References:

1　于广武.重视钾肥的投入提高大豆单产[ J] .大豆通报, 1995 , 1 :23 -24.

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