This plan selects the soybean variety (line) Kaohsiung Xuan No. 10 (spring cropping) suitable for organic cultivation and the  corn Tainong No. 1 for rotation to evaluate the impact on hard corn yield.

The 100-seed weight of soybean spring seeds is 18.3 grams, and the yield is 1406 kilograms per hectare. Due to several insect pests during the seedling stage, the seedlings were replanted, resulting in delayed growth. The flowering stage was affected by rainfall, resulting in poor plant growth traits., Thereby affecting production performance.

For hard corn Tainong No. 1 (soybean backfield), in terms of initial flowering stage, silking stage (50%), ear height and plant height, the relevant data are all high when applying the full amount of organic fertilizer and 75% of the full amount of organic fertilizer. Regarding the application of chemical fertilizers, the application of 50% organic fertilizer had the worst performance during the period. In terms of ear length, 100-grain weight and yield per plot, the application of conventional cultivation fertilizer had the best performance. The application of organic fertilizer had the worst performance. The yield per plot is 79.4% (yield reduction 20.6%) of applying full amount of fertilizer for conventional cultivation.

▲Fig. 1 Growth status of hard corn Tainong No. 1 (soybean backfield).

▲Fig. 2 Growth situation in soybean fields.

▲Fig. 3 The corn Tainong No. 1 ears by different treatments.