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The experiment was to explore the effect of different planting methods on yield and quality of forage rape. In the experiment, three varieties of forage rapeseed (Shuangyou 1851, Fengyou 10 and Shuangyou 195) were selected and tested under three different planting methods (sowing and drilling with row spacing of 20.0 and 33.3 cm, respectively), to determine the number of leaves, stem diameter, chlorophyll index and nutritional quality at seedling stage. The results showed that three planting methods contributed to aboveground yield of forage rape: 20.0 cm drill > broadcast > 33.3 cm drill. Under the row spacing of 20.0 cm, three cultivars showed higher biomass yields at seedling and silique stages, and Shuangyou 1851 had the highest yield in both stages, reaching 49 522.25 and 76 633.72 kg/hm², respectively. Ash content of Shuangyou 1851 under three planting methods was significantly higher than that of Fengyou 10 and Shuangyou 195 (P<0.05). Ash content in 33.3 cm drill and broadcast was significantly higher than other varieties and planting methods (P<0.05). The EE content of Shuangyou 1851 under three planting methods was significantly lower than that of Fengyou 10 and Shuangyou 195 (P<0.05). The EE content of Fengyou 10 under 20.0 cm drill was significantly higher than that of the other two planting methods (P<0.05), and EE content of Shuangyou 195 under 33.3 cm drill was significantly lower than other varieties and planting methods (P<0.05). The content of NDF of Shuangyou 195 under 33.3 cm drilling was significantly higher than that of the other two planting methods (P<0.05), and the content of ADF under sowing conditions was significantly lower than the other two methods (P<0.05). The study indicates that the overall ash, EE and crude protein content of three cultivars were higher under the row spacing of 20.0 cm, the biomass of Shuangyou 1851 silique at initial stage of seeding at 20.0 cm reaches a maximum of 76 633.72 kg/hm², and the nutritional quality is higher. [ABSTRACT FROM AUTHOR]

Taking 'Hongmian' cut Chrysanthemum as test material, the black plastic film was used to build shading shed, and six groups of different photoperiod treatments were set up by black film shading method, which were day / night7h/17h (recorded as Ph7), 8 h / 16h(Ph8), 9 h/15 h (Ph9), 10 h/14h (PhlO), 11 h/13 h (Phi 1), and long-day (13-14 h) treatment as CK. The effects of different photoperiods on the vegetative growth, flowering and development quality of Chrysanthemum were studied. The time and leaf number of budding, bud breaking, initial flowering and full blooming of different treatments were recorded. The contents of total soluble sugar, sucrose and protein in leaves at different developmental stages were measured and analyzed. The fresh weight of flowers and stems and the distribution rate of dry matter in different organs were measured at the full blooming stage of different treatments. The purpose was to clarify the regulatory effect of different photoperiods on the initial flowering stage and flowering quality of 4 Hongmian, Chrysanthemum, and to propose targeted light supplement suggestions for Chrysanthemum cultivation at different developmental stages. The results showed that, (1) the number of leaves increased with the increase of illumination time, and the increase rate of CK was the largest, followed by Phil, and Ph7 was the smallest. (2) The flowering time of 'Hongmian' cut Chrysanthemum was significantly affected by photoperiod. The flowering time of Chrysanthemum under Ph 10 treatment was the shortest from seedling stage to budding and flowering. The flowering time of Phil from the initial flowering stage to the full blooming stage of petals was the shortest. The flowering time of Ph7, Ph8 and CK was seriously lagging behind. (3) The changes of soluble sugar and protein content in leaves at different developmental stages showed a 'M' trend, and the two peaks appeared at the flower bud differentiation stage and before flowering. The total soluble sugar content in CK was the highest, followed by Phil; The contents of soluble protein and sucrose, as the messenger molecules that can perceive photoperiod signals, were the highest in PhlO. (4) Flower fresh weight of Phil was the largest, and the effect of flower promotion was significant. Therefore, in order to ensure the quality of cut flowers, the seedling stage should accept more than llh/d long sunshine conditions, so that the Chrysanthemum seedlings fully vegetative growth and not prematurely induce flower bud differentiation, with 1 Oh/d light conditions for inducing flowers, bud formation and begin to flower color, flower bud differentiation is irreversible, placed in llh/d light conditions can be the fastest full expansion of petals. [ABSTRACT FROM AUTHOR]