| 邢素丽,刘孟朝,何萍.用增稳系数评价钾肥配合秸秆还田对作物的增产稳定性效应[J].干旱地区农业研究,2010,28(5):47~51 |
| 用增稳系数评价钾肥配合秸秆还田对作物的增产稳定性效应 |
| Evaluating stability of durative yield increasing effect of potassium(K) fertilization and straw recycling on crop yields by yield increase stability coefficient (YISC) |
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| DOI：10.7606/j.issn.1000-7601.2010.05.09 |
| 中文关键词: 增产稳定性 增产稳定性系数 钾肥配合秸秆还田 小麦 玉米 |
| 英文关键词:stability of durative yield increasing yield increase stability coefficient (YSIC) potassium (K) fertilization and straw recycling wheat corn |
| 基金项目:国家科技支撑计划(2008BADA4B07);河北省自然基金项目（D2008001183）;PPI&PPIC |
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| 中文摘要: |
| 根据长期定位试验结果，提出增产稳定性系数（增稳系数）指标，据此研究化学钾肥和秸秆配合施用对小麦玉米产量的持续增产稳定性效应，以期更合理评价钾肥配合秸秆还田这一施肥方式对作物增产稳定性的影响。试验共设4个处理，分别为：(1) 只施氮磷肥的对照（NP）；（2） 在对照基础上加施秸秆（NPSt）；（3） 在对照基础上加施钾肥（NPK）；（4） 在对照基础上加施秸秆和钾肥（NPKSt）。结果表明：增稳系数可以作为评价施肥方案对作物产量长期持续增产效应的综合指标；不同施肥方案的长期持续增产效应定量分析表明，钾肥配合秸秆还田方案不但促进作物增产，还能提高增产的持续稳定性。 |
| 英文摘要: |
| According to long-term sited fertilization experiment, this paper put forward yield increase stability coefficient (YISC) index, in order to study and quantitative analyze stability of durative yield-increasing effect of potassium(K) fertilization and straw recycling on wheat and corn yields. The experiment includes 4 treatments as: (1) CK, only providing N and P fertilizer; (2) CK + wheat straw recycling; (3) Optimum rate of N, P and K fertilizer; (4) N, P and K fertilization + wheat straw recycling. The results show that YISC is available for evaluating stable yield-increasing effect of the fertilization design. By quantitative analysis for long-term yield-increasing effect of different fertilization designs we know that long-term K fertilization and straw recycling can both increase grain yield and stability of durative yield increasing. |
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