草业科学
草業科學
초업과학
PRATACULTURAL SCIENCE
2009年
12期
98-102
,共5页
桂牧1号%田周地%肥料效应函数%肥料需要量
桂牧1號%田週地%肥料效應函數%肥料需要量
계목1호%전주지%비료효응함수%비료수요량
Pennisetum purpureum cv. Guimu No.1%field bund%fertilizer effect function%fertilizer demand
通过不同的施肥处理方案研究在田周地种植桂牧1号杂交象草Pennisetum purpureum cv.Guimu-1的氮、磷、钾需要量及其最佳配比模式.结果表明,在田周地种植桂牧1号杂交象草,通过合理的氮、磷、钾配方施肥,能够达到良好的生产效果与效益.实测结果以N_2P_2K_2(氮肥414 kg/hm~2,磷肥138 kg/hm~2,钾肥276 kg/hm~2)试验组的产量最高[(256.81±1.18)t/hm~2],与其他低水平试验组差异均达到极显著水平(P<0.01);与无肥处理相比,增产率达到16.6%.通过对各处理进行效应模型的配置与分析,得出田周地种植桂牧1号杂交象草的预测最高产量为259 t/hm~2,对应施肥量为氮肥414~621 kg/hm~2、磷肥140 kg/hm~2、钾肥204 kg/hm~2;预测最佳经济产量为256 t/hm~2,对应施肥量为氮肥414 kg/hm~2、磷肥140 kg/hm~2、钾肥172 kg/hm~2.
通過不同的施肥處理方案研究在田週地種植桂牧1號雜交象草Pennisetum purpureum cv.Guimu-1的氮、燐、鉀需要量及其最佳配比模式.結果錶明,在田週地種植桂牧1號雜交象草,通過閤理的氮、燐、鉀配方施肥,能夠達到良好的生產效果與效益.實測結果以N_2P_2K_2(氮肥414 kg/hm~2,燐肥138 kg/hm~2,鉀肥276 kg/hm~2)試驗組的產量最高[(256.81±1.18)t/hm~2],與其他低水平試驗組差異均達到極顯著水平(P<0.01);與無肥處理相比,增產率達到16.6%.通過對各處理進行效應模型的配置與分析,得齣田週地種植桂牧1號雜交象草的預測最高產量為259 t/hm~2,對應施肥量為氮肥414~621 kg/hm~2、燐肥140 kg/hm~2、鉀肥204 kg/hm~2;預測最佳經濟產量為256 t/hm~2,對應施肥量為氮肥414 kg/hm~2、燐肥140 kg/hm~2、鉀肥172 kg/hm~2.
통과불동적시비처리방안연구재전주지충식계목1호잡교상초Pennisetum purpureum cv.Guimu-1적담、린、갑수요량급기최가배비모식.결과표명,재전주지충식계목1호잡교상초,통과합리적담、린、갑배방시비,능구체도량호적생산효과여효익.실측결과이N_2P_2K_2(담비414 kg/hm~2,린비138 kg/hm~2,갑비276 kg/hm~2)시험조적산량최고[(256.81±1.18)t/hm~2],여기타저수평시험조차이균체도겁현저수평(P<0.01);여무비처리상비,증산솔체도16.6%.통과대각처리진행효응모형적배치여분석,득출전주지충식계목1호잡교상초적예측최고산량위259 t/hm~2,대응시비량위담비414~621 kg/hm~2、린비140 kg/hm~2、갑비204 kg/hm~2;예측최가경제산량위256 t/hm~2,대응시비량위담비414 kg/hm~2、린비140 kg/hm~2、갑비172 kg/hm~2.
The demands and optimum proportion of N, P and K of hybrid Pennisetum purpureum cv. Guimu No.1 grown in field bund were studied with "3414" design. The results showed that its response to formula fertilizing was good. Among the treatments, the best one is N_2 P_2 K_2 (N 414 kg/hm~2, P_2O_5 138 kg/hm~2, K_2O 276 kg/hm~2) and its yield was the highest [(256.81±1.18) t/hm~2], and the difference with the low level treatments was significant (P<0.01). The yield was increased by 16.6% compared with the check. Based on the analysis of the effect prediction model, the estimated highest yield was 259 t/hm~2 and the relevant fertilizing formula was 414 to N 621 kg/hm~2, P_2O_5 140 kg/hm~2 and K_2O 204 kg/hm~2. The best economic formula wasN 414 kg/hm~2, P_2O_5 140 kg/hm~2 and K_2O 172 kg/hm~2, and the relevant yield was 256 t/hm~2.
