Effects of plastic-film mulching and nitrogen application on forage-oriented maize in the agriculture-animal husbandry ecotone in North China |
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Authors: | Xiong Du Xiuju Bian Weihong Zhang Fucun Yang Lifeng Zhang |
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Institution: | (1) College of Agronomy, Agricultural University of Hebei, Baoding, 071001, China;(2) Zhangbei Agricultural Resource and Ecological Environment Key Field Research Station, Ministry of Agriculture of China, Zhangjiakou, 076450, China;(3) College of Plant Protection, Agricultural University of Hebei, Baoding, 071001, China |
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Abstract: | To counter the actual problems of forage shortage and low quality existing in the agriculture-animal husbandry ecotone in
North China, a research was conducted to study the effects of plastic-film mulching and nitrogen application on the production
of forageoriented maize with the aim of producing water-saving forage with high-yield and good quality. Field experiments
combined with laboratory experimental estimation and analysis was adopted. Plastic-film mulching increased the dry biomass
of forage-oriented maize by 23.8% with effectively improving the maize’s nitrogen absorption so that the apparent utilization
ratio and output-input ratio of nitrogen were enhanced. The content of crude protein in maize plant was increased and thus,
forage nutritive quality was improved. Plastic-film mulching remodeled the maize field water consumption scheduling pattern
and increased the water use efficiency by over 10%. Nitrogen application to forage-oriented maize co-improved the biomass
and the nutritive quality with the nutritive matter (percentage and yield) several times of the biomass. Nitrogen application
increased maize biomass production by 36.1%–39.5% and it increased the contents of crude protein and crude fat in maize plant
by 109% and 145%, respectively. The yields of the two nutritive matters increased by 160% and 210%. Nitrogen application at
the rate of about 200 kg·hm−2 to the uncovered field and the rate less than 300 kg·hm−2 to the field with film mulching were considered as the most proper rates to guarantee high yield and good quality of forage-oriented
maize and were the rates to keep the available nitrogen balanced in the soil. Plastic-film mulching and nitrogen fertilizer
application to forage-oriented maize was an effective way of producing forage with high yield and good quality, relieving
the shortage of animal forage and accelerating ecological recovery and economic development in this ecotone in North China.
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Translated from Scientia Agricultura Sinica, 2006, 40(6): 1206–1213 译自: 中国农业科学] |
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Keywords: | agriculture-animal husbandry ecotone of North China forage-oriented maize plastic-film mulching nitrogen application |
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