1. As a seed fertilizer, the fertilizer is generally applied to the lower part or the lower part of the seed in advance. The fertilizer and the seed should be kept at an appropriate distance, generally 3-5 cm, to avoid burning the seeds. Therefore, as a fertilizer for seed fertilizer, the depth of fertilization should be 5-6 cm.
2. The root system of the plant has been initially developed when topdressing and topdressing. If mechanical topdressing is used, the root should be minimized. The depth of fertilization should not be too large. The horizontal distance (side distance) from the plant should also be appropriate. Under normal circumstances, between the line of topdressing, narrow crops such as wheat, the depth of topdressing is 6-8 cm, wide crops such as corn, the depth of topdressing is 8-12 cm, the side spacing is 10-15 cm is appropriate. .
3, the base fertilizer fertilizer period is in the late stage of crop growth, when the root system of the crop has matured, the plant is tall and dense, the root zone top dressing is difficult to operate, mainly relying on the base fertilizer applied during the preparation of the soil before sowing. The bottom fertilizer is often 15-20 cm or more. Plowing bottom fertilization is a simple and easy way to do it. There are two main methods: one is to spread the fertilizer on the surface and then plow the soil into the soil; the other is to plow the fertilizer while applying the fertilizer to the furrow, that is, when plowing.
2. The root system of the plant has been initially developed when topdressing and topdressing. If mechanical topdressing is used, the root should be minimized. The depth of fertilization should not be too large. The horizontal distance (side distance) from the plant should also be appropriate. Under normal circumstances, between the line of topdressing, narrow crops such as wheat, the depth of topdressing is 6-8 cm, wide crops such as corn, the depth of topdressing is 8-12 cm, the side spacing is 10-15 cm is appropriate. .
3, the base fertilizer fertilizer period is in the late stage of crop growth, when the root system of the crop has matured, the plant is tall and dense, the root zone top dressing is difficult to operate, mainly relying on the base fertilizer applied during the preparation of the soil before sowing. The bottom fertilizer is often 15-20 cm or more. Plowing bottom fertilization is a simple and easy way to do it. There are two main methods: one is to spread the fertilizer on the surface and then plow the soil into the soil; the other is to plow the fertilizer while applying the fertilizer to the furrow, that is, when plowing.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Battery Powered Impact Wrench,Right Angle Impact Driver,Impact Wrench For Lug Nuts,Porter Cable Impact Wrench
Suzhou ZhaoCheng lithium technology Co., Ltd. , https://www.scans-tools.com