施用农用酵素对大豆种子萌发及幼苗生长发育的影响OA

To study the effects of agricultural Jiaosu on seed germination and seedling growth of soybean,soybean variety'Zhonghuahuang No.1'was used as test material.In germination test,three concentrations of agricultural Jiaosu were set up,which diluted 80 ×(J80),100 ×(J100)and 120 ×(J120),and the control was water(CK).The optimal concentration of Jiaosu soaking was selected according to the germination energy and germination rate.A two-factor pot experiment was conducted using seed soaking at the most suitable concentration combined with foliar spray of 200 × Jiaosu dilution solution.Four treatments were set up:Seed soaking with clear water+foliar spray with clear water(Z0P0),seed soaking with Jiaosu+foliar spray with clear water(Z1P0),seed soaking with clear water+foliar spray with Jiaosu(Z0P1),and seed soaking with Jiaosu+foliar spray with Jiaosu(Z1P1).The plant height,relative chlorophyll content(SPAD),root length,plant dry matter weight and root shoot ratio were determined at 25 d after seedling emergence.The results showed that the germination energy and germination rate of seeds treated with J80,J100 and J120 were higher than those of CK.The germination rate of J80 was 90％,which was significantly higher than CK(82％)(P＜0.05).The suitable concentration of agricultural Jiaosu for soaking seeds is diluted 80 ×.In the pot experiment,plant height of Z1P,was increased by 13.54％(P＜0.05)compared to Z0P0,while the plant height of Z1P0 and Z0P1 was 3.26％and 5.23％higher than that of Z0P0.The root length of Z1P0 and Z1P1increased by 60.12％and 43.87％compared to Z0P0(P＜0.05),respectively,and root length of Z0P1 was 26.08％higher than that of Z0P0.The seedling dry matter accumulation of Z1P0 and Z0P1 was increased by 47.48％and 34.33％compared with Z0P0,respectively(P＜0.05),while dry matter accumulation of Z1P1 seedlings was 22.85％higher than that of Z0P0.The SPAD of Z0P0,Z0P1 and Z1P1 was 7.99％,8.49％,and 12.01％higher than that of Z1P0(P＜0.05).And all pot treatments had root shoot ratios＜0.5.Comprehensive evaluation based on membership functions indicates that treatment Z1P1 has better effect on promoting soybean seedling growth than other treatments.In conclusion,seed soaking in 80 × diluted agricultural Jiaosu solution combined with spraying with a 200 × diluted Jiaosu solution(Z1P1)can effectively promote soybean seed germination,enhance seedling height and biomass accumulation of seedlings,which is conducive to achieving efficient and high-quality organic dry-farming soybean production.