STUDY ON MECHANISM OF SOYBEAN FERTILIZING SOILⅢ . THE INFLUENCE OF SOYBEAN ON NITROGENOUS COMPOUNDS IN TILTH SOIL(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Title:: STUDY ON MECHANISM OF SOYBEAN FERTILIZING SOILⅢ . THE INFLUENCE OF SOYBEAN ON NITROGENOUS COMPOUNDS IN TILTH SOIL

Author(s):: Chi Fengqin; Crop Nutrit ion and Practical Technology Institute, Heilongjiang Acaemy of Agricultural Science

Abstract:: The study probed the inf luence o f soy bean on soil ni trog eno us in compo unds in Heilo ng jia ngprovince. The ex periment indicated that the soil o n increased 0. 461% and 0. 341% af ter harv esting thesoybean and cor n respectiv ely. The soil to tal N increased 1. 1% af ter harv esting the soy bean, but i t decreased5. 2% for corn under no rmal rainfall condi tio n in 1988. By di fferent til lag e practices the ni trog enouscompo und co ntent s all reduced in deeply loo seed plo ts of the three fertilizer t reatments , but the contentsin undeeply loosened plo ts slight ly surpassed in their basal content s in soil of 1990, especially it w asv ery obvio us in soil applied wi th org anic manure. So a certain condi tio n is needed on sowing so ybean fo rfertiling soi l. As there w ere many so ybean falling leav es in field, they co uld retur n N 11. 9- 18. 9kg /hm2 tosoil.

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Last Update: 2016-12-28