论文部分内容阅读
1.在氮、磷、钾肥配合施用(NPK)的基础上加倍施用磷肥(NP_2K)或钾肥(NPK_2)使胜利油菜表现出“冬壮春发”的类型。在越冬期其原生质的粘滞性及束縛水含量(％)均较高,抗塞性及保水力较强,能安全越多;同时在冬季低温下仍具有较高的合成水平,其叶缘素含量及蛋白氮占总氮百分率均较高,每月出生叶片数较多,从越多期到蕾苔期叶面积及叶数的增长速率亦较大,特别是NP_2K处理更为显著。而缺磷(NK处理)及缺钾(NP处理)则相反,且叶中氨基酸的种类及数量显著少于对照(NPK)。 2.叶中磷、钾含量虽受施肥影响而有差异,但不甚显著。可是各处理叶数有显著差异,在对照(NPK)的基础上加倍施用磷肥(NP_2K)破钾肥(NPK_2)的其叶数显著高于不施磷肥(NK)或钾肥(NP)的处理;如以整个植株的总磷量及总钾量相比就会有很大的差异。 3.营养生长较好的处理其生殖生长亦较好,产量及含油量亦较高;以各处理相比,千粒重、单株种子重、种子含油量及单株种子含油总量都以NP_2K处理为最高,NK处理为最低,其次序为: NP_2K>NPK_2>NPK>NP>NK。
1. The application of NPK (NPK) or potash fertilizer (NPK_2) on the basis of NPK combined with N, P and K fertilizers led to the type of “Dongzhuangchunfa”. The protoplasm’s viscosity and bound water content (%) are higher in wintering period, and have better anti-seizure and water-holding capacity, more safety; at the same time, it still has higher synthetic level at winter low temperature, Nitrogen content and protein nitrogen accounted for a high percentage of total nitrogen, and the number of leaves born per month was relatively high. The growth rate of leaf area and number of leaves from the more period to the bud stage was greater, especially the NP_2K treatment was more significant. However, phosphorus deficiency (NK treatment) and potassium deficiency (NP treatment) were the opposite, and the types and numbers of amino acids in the leaves were significantly less than that of the control (NPK). Leaf phosphorus and potassium content although the impact of fertilization are different, but not significant. However, there were significant differences in leaf number among treatments. NPK2 NPK2 was significantly higher than NPK treatment on the basis of NPK (P <0.05) There is a big difference between the total phosphorus content of the whole plant and the total potassium content. The growth of vegetative growth was also better and the yield and oil content were also higher. Compared with the treatments, the grain weight per plant, the seed weight per plant, the seed oil content and the oil content per plant were all NP_2K Is the highest, NK treatment is the lowest, the order is: NP_2K> NPK_2> NPK> NP> NK.