通过田间试验研究了红菜薹(Brassica campestris L. ssp. chinensis var. utili Tsen et Lee)废弃物还田以及化肥减施对四季豆产量和养分累积的影响。结果表明,在常规施肥的基础上,红菜薹废弃物半量和全量还田四季豆产量分别增加了13.41...通过田间试验研究了红菜薹(Brassica campestris L. ssp. chinensis var. utili Tsen et Lee)废弃物还田以及化肥减施对四季豆产量和养分累积的影响。结果表明,在常规施肥的基础上,红菜薹废弃物半量和全量还田四季豆产量分别增加了13.41%和29.43%,与红菜薹废弃物全部还田相比,全部还田+化肥用量减施30%使得四季豆产量降低了25.41%;与单施化肥相比,全部还田+化肥用量减施30%处理四季豆生物量增加了9.38%。红菜薹还田氮素、磷素和钾素累积量分别较单施化肥处理增加了18.72%~32.55%、6.35%~38.22%和5.73%~41.87%,且富集的氮、钾主要存在茎、叶片和果实中。展开更多
3414 field experiment （including three nutrient elements at four gradient levels, a total of 14 unrepeated incomplete treatments） was designed to study the fertilization measures for wheat interplanted with cotton i...3414 field experiment （including three nutrient elements at four gradient levels, a total of 14 unrepeated incomplete treatments） was designed to study the fertilization measures for wheat interplanted with cotton in Qianjiang City, Hubei Province. Fertilizer model for wheat interplanted with cotton in Jianghan Plain was finally established, based on which the soil nutrient indices in wheat-cotton inter- planting field were screened; and optimal nitrogen, phosphorus and potassium appli- cation for wheat was put forward as 130-210 kg/hm2 N, 40-70 kg/hm2 P2O5 and 40-60 kg/hm2 K2O.展开更多
文摘通过田间试验研究了红菜薹(Brassica campestris L. ssp. chinensis var. utili Tsen et Lee)废弃物还田以及化肥减施对四季豆产量和养分累积的影响。结果表明,在常规施肥的基础上,红菜薹废弃物半量和全量还田四季豆产量分别增加了13.41%和29.43%,与红菜薹废弃物全部还田相比,全部还田+化肥用量减施30%使得四季豆产量降低了25.41%;与单施化肥相比,全部还田+化肥用量减施30%处理四季豆生物量增加了9.38%。红菜薹还田氮素、磷素和钾素累积量分别较单施化肥处理增加了18.72%~32.55%、6.35%~38.22%和5.73%~41.87%,且富集的氮、钾主要存在茎、叶片和果实中。
基金Supported by the Fund from Agricultural Science and Technology Innovation Center of Hubei Province(2011-620-001-03)the Supporting Program of Hubei Academy of Agricultural Sciences(2014FCXJH06)+1 种基金the Fund from Key Laboratory of Soil Quality Research,Chinese Academy of Agricultural Sciences(CAAS-2010HB)Financial Subsidy for National Soil Test-based Fertilization Recommendation Research(CNCT09-32)~~
文摘3414 field experiment （including three nutrient elements at four gradient levels, a total of 14 unrepeated incomplete treatments） was designed to study the fertilization measures for wheat interplanted with cotton in Qianjiang City, Hubei Province. Fertilizer model for wheat interplanted with cotton in Jianghan Plain was finally established, based on which the soil nutrient indices in wheat-cotton inter- planting field were screened; and optimal nitrogen, phosphorus and potassium appli- cation for wheat was put forward as 130-210 kg/hm2 N, 40-70 kg/hm2 P2O5 and 40-60 kg/hm2 K2O.
