TALL FESCUE GROWTH IN GREENHOUSE, GROWTH CHAMBER, AND FIELD PLOTS AMENDED WITH SEWAGE SLUDGE COMPOST AND FERTILIZER
TALL FESCUE GROWTH IN GREENHOUSE, GROWTH CHAMBER, AND FIELD PLOTS AMENDED WITH SEWAGE SLUDGE COMPOST AND FERTILIZER
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用污水污泥堆肥和肥料改良温室、生长室和田地中的高羊茅生长
DOI：
10.1097/00010694-198912000-00008
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
C. F. Tester
中科院分区：
文献类型：
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作者：
C. F. Tester
建议使用污水污泥堆肥，以满足作物的氮需求，这导致温室和受控环境生长室的研究，还没有得到充分的验证与田间试验。研究了施用污泥堆肥和全量化肥对“肯塔基州31”高羊茅（Festuca arundinacea Schreb.）生长在Evesboro壤质砂（中质，涂覆的Typic Quartzipsamments）上，在不同的环境中。堆肥施加率为0，45，90，或135毫克公顷-1的温室和生长室盆栽研究和0，60，120，和240毫克公顷-1的田间试验。肥料（N、P、K）以0和200 kg ha-1施用，如所示。堆肥改良剂在所有三种生长环境中线性增加了牛毛草的产量。对于第二茬作物，产量是生长室中第一茬作物的产量的50%，是田间第一茬作物的产量的60%。一个保守的估计堆肥氮利用的牛毛草作物为8%的第一个种植季节和5%的第二个赛季（确定从整个植物吸收温室和生长室）。这些估计可能是低的，因为高羊茅在田间小区的堆肥N的平均利用率为7%的第一年修剪（根和残茬未分析）。相等的干物质产量为135毫克公顷-1堆肥修正案和完整的温室生长的牛毛草肥料，然而，相等的产量为田间生长的牛毛草实现了60毫克公顷-1堆肥修正案。模型方程推导出估计从堆肥改良土壤的牛毛草产量。
Recommendations for using sewage sludge compost to satisfy the N requirement of crops, which resulted from greenhouse and controlled environmental growth chamber studies, have not been sufficiently validated with field trials. Studies were conducted to evaluate the effects of sewage sludge compost and complete fertilizer amendments on yields and N content of ‘Kentucky 31’ tall fescue (Festuca arundinacea Schreb.) grown on Evesboro loamy sand (mesic, coated Typic Quartzipsamments) in different environments. Compost was applied at rates of either 0, 45, 90, or 135 Mg ha-1 in greenhouse and growth chamber pot studies and 0, 60, 120, and 240 Mg ha-1 in field trials. Fertilizer (N,P,K) was applied at 0 and 200 kg ha-1 where indicated. Compost amendment increased the yields of fescue linearly in all three growth environments. For the second crop, yields were 50% of those for the first crop in the growth chamber and 60% of those for the first crop in the field. A conservative estimate for compost N utilization by the fescue crop was 8% for the initial cropping season and 5% for the second season (determined from the entire plant uptake in the greenhouse and growth chamber). These estimates may be low because the average utilization of compost N by the tall fescue in the field plots was 7% for the first year clippings alone (roots and stubble not analyzed). Equivalent dry matter yields were obtained for the 135 Mg ha-1 compost amendment and complete fertilizer for greenhouse grown fescue; however, equivalent yields for the field-grown fescue were realized by the 60 Mg ha-1 compost amendment. Model equations were derived for estimating fescue yield from compost-amended soil.