Effect of Transplantation in Different Seedling Age on Growth and Yield of Spring Maize in Shanxi Early Mature Area

In order to explore a new mulch-free maize planting mode and the best seedling age for maize transplantation in Shanxi early mature area,a field experiment was carried out using completely randomized block design. Taking mulch based direct sowing as the control group,effects of transplantation in different seedling age on maize growing process,plant height,yield and composition factors of maize were analyzed.Results indicate that growing process of maize seedlings transplanted in different seedling age is slightly slower than the control group. Transplantation has the effect of reducing plant height. Although the yield of transplanted maize in different seedling age is lower than the control group. Besides,with the growth of seedling age of transplantation,the gap is widening. However,it is expected to realize mulch-free maize planting by transplantation in Shanxi early mature area. The yield of maize transplanted in two-leaf seedling age is not significantly different from the control group,and the yield is only 9% lower than the mulch-based direct sowing( CK). In conclusion,two-leaf period is the best seedling transplantation age for maize in Shanxi early mature area in this experiment condition.

番茄育苗移栽高产栽培技术

番茄作为常见蔬菜含有丰富的维生素和营养成分,是广受大众喜爱的蔬菜。番茄栽培过程中,实施育苗移栽高产栽培技术可以切实提高番茄的产量及质量。分析了番茄育苗移栽各个环节的技术要点,提出了有效的田间管理技术和方法,为番茄的高产栽培提供参考。

不同育秧方式对水稻秧苗素质、栽插质量和产量的影响

以丰两优1号为材料,对比研究了规格化育秧和大田泥浆育秧两种育秧方式对水稻秧苗素质、栽插质量和产量的影响。结果表明,大田泥浆育秧的秧苗素质好于规格化育秧,但秧苗插前均匀度合格率低于规格化育秧;规格化育秧栽插质量高于大田泥浆育秧,表现为其伤秧率和漏秧率明显低于大田泥浆育秧,均匀度合格率和作业效率高于大田泥浆育秧;产量方面,规格化育秧的水稻理论产量和实际产量均高于大田泥浆育秧,差异显著,主要是因为规格化育秧的有效穗数明显高于大田泥浆育秧。