THE FATE OF NITROGEN FROM15N‐LABELED STRAW AND GREEN MANURE IN SOIL‐CROP‐DOMESTIC ANIMAL SYSTEMS
作者:
DIAN-YUAN HE,
XING-LING LIAO,
TING-XIANG XING,
WEI-JUN ZHOU,
YUE-JUN FANG,
LIE-HA HE,
期刊:
Soil Science
(OVID Available online 1994)
卷期:
Volume 158,
issue 1
页码: 65-73
ISSN:0038-075X
年代: 1994
出版商: OVID
数据来源: OVID
摘要:
In this study,15N-labeled rice straw and green manure were used to feed goats and pigs separately, and the feces and urine from the animals were applied to rice plants as base fertilizer. It was shown that a total of 33.4–33.7% of the nitrogen in the feed straw was recovered by the goats' body and rice grain, which was significantly higher than the N recovery (9.9–14.5%) by rice grain when rice straw was returned directly to the field as a base fertilizer. The total N recovery from green manure as feed by the pigs' body and grain totalled 30.2–30.8%, which was significantly higher than that of grain (22.7–26.7%) recovered from green manure when it was directly applied to the soil. It was concluded that rice straw and green manure are used most economically by feeding goats and pigs and returning the feces and urine to the field.
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