SOME EFFECTS OF CATTLE DUNG ON SOIL PROPERTIES, PASTURE PRODUCTION, AND NUTRIENT UPTAKE .1. DUNG AS A SOURCE OF PHOSPHORUS
SOME EFFECTS OF CATTLE DUNG ON SOIL PROPERTIES, PASTURE PRODUCTION, AND NUTRIENT UPTAKE .1. DUNG AS A SOURCE OF PHOSPHORUS
复制标题
DOI：
10.1080/00288233.1973.10421125
复制
发表时间：
1973-01-01
影响因子：
1.8
通讯作者：
WEEDA, WC
中科院分区：
文献类型：
--
作者：
DURING, C;WEEDA, WC
牛粪和过磷酸钙，应用一次，对牧草产量，养分吸收，并对几个土壤性质的影响进行了测量，在该领域约3年。土壤对磷的吸附能力很强。与过磷酸钙相比，牛粪降低了磷的吸附，增加了土壤pH值。施入牧草中的磷的回收率高于过磷酸钙。对此可能的原因进行了讨论。牧草对粪和过磷酸钙的产量反应分别持续了2年和11年。在整个试验期间，磷的产量都受到影响。粪便影响磷吸收的面积可能是其实际覆盖面积的5倍左右。因此，在中等放牧率（每公顷3-4头牛）下，已建牧场的磷吸收可能在任何时候都受到一半以上放牧面积上的粪点的影响。在原位放牧条件下，粪便可能对磷酸盐吸附产生累积的有益影响，从而对磷循环的长期效率产生影响。
The effect of cattle dung and of superphosphate, applied once, on the yield of pasture, nutrient uptake, and on several soil properties was measured in the field over about 3 years. The soil had very high phosphate sorption. Compared with superphosphate applied at equivalent rates of P, cattle dung decreased phosphate sorption and increased soil pH. The recovery of applied phosphate in herbage was higher from dung than from superphosphate. The likely reasons for this are discussed. Yield responses of herbage to dung and superphosphate persisted for 2 years and 11 years respectively. Yields of P were affected for the duration of the experiment.The area on which dung influenced P uptake was probably about five times the area physically covered by it. Thus under medium rates of stocking with cattle (3-4 per hectare) the phosphate uptake of established pasture is likely to be influenced by dung spots on over half of the grazing area at any one time. Under conditions of in situ grazing dung may have a cumulative beneficial effect on phosphate sorption and therefore on the long-term efficiency of the phosphorus cycle.