Corn, peanuts, ginger, taro, are several common crops, many friends like to plant, but these crops have different needs for fertilizer, each has its own preferences, whether it is the use of base fertilizer, top dressing or foliar spraying, they must be treated separately, can not be treated equally. If the fertilizer is not selected correctly, no matter how much is applied, it will not achieve the effect of increasing yield. Therefore, when planting these crops, it is necessary to select and apply fertilizers according to their respective fertilizer needs to increase their yields.
corn
Most of the corn varieties planted by families, mostly sticky corn and sweet corn, specifically eat corn cob, this kind of corn is generally not a large planting area, then you can use organic fertilizer when planting, with an appropriate amount of compound fertilizer as a base fertilizer. If the organic fertilizer is sufficient, it is also possible to use organic fertilizer alone, if the organic fertilizer is insufficient or the soil fertility is low, it is better to use an appropriate amount of compound fertilizer, such as diamine, ammonium nitrate, etc.
Top dressing needs to be based on different growth, if the seedling growth is good, the bottom fertilizer is sufficient, you can apply a fast-acting nitrogen fertilizer (urea, ammonium bicarbonate, etc.) when about 70-100 cm high. If the seedling growth is not too good, you can apply seedling fertilizer once at the seedling stage (with available nitrogen fertilizer), and then apply a fast-acting nitrogen fertilizer at the large flare stage (10-12 leaves).
peanut
Peanuts need less fertilizer at the seedling stage, and a lot of fertilizer is required after flowering, and nitrogen, phosphorus, potassium and trace elements can not be missing, because the peanut root system is a rhizobia nitrogen-fixing bacteria, and there is generally no need for top dressing in planting, but the bottom fertilizer must be applied sufficiently. When planting, organic fertilizer can be used, with compound fertilizer and superphosphate, or organic fertilizer with triamine as the base fertilizer. If the base fertilizer is not used enough, or the soil fertility is poor, it can be combined with soil cultivation before flowering, and the balanced compound fertilizer can be applied first, and the top dressing should not be done after flowering, but foliar fertilizer can be carried out.
Peanut foliar fertilizer, can be bored molybdenum, potassium dihydrogen phosphate, brassin, etc., especially boron fertilizer and molybdenum fertilizer should not be lacking, sprayed before flowering, after flowering and pod-setting stage, increase yield and quality, but also prevent premature aging of seedlings.
ginger
Ginger has a large demand for nitrogen fertilizer and potassium fertilizer, and the ratio of nitrogen, phosphorus and potassium is about 5:1:8, and there is also a large demand for boron, molybdenum and other fertilizers. Therefore, the planting of ginger base fertilizer is mainly based on organic fertilizers such as rotting manure and cake fertilizer, which can be matched with an appropriate amount of plant ash, and if the organic fertilizer is insufficient, it can be used with high potassium compound fertilizer.
Top dressing: ginger has a long growth period, and there is a lot of demand for fertilizer, so it is necessary to carry out top dressing several times, and the top dressing time is in the seedling stage, the middle growth stage and the ginger block expansion stage. Fertilizer can choose fermented cake fertilizer, ternary compound fertilizer, or urea mixed with potassium sulfate.
Foliar spray: Ginger foliar fertilizer can choose potassium dihydrogen phosphate mixed with brassin, or choose ginger-specific foliar fertilizer, which can be sprayed in the middle and late stages of growth.
taro
Taro, like ginger, is an underground root crop that has a high demand for nitrogen and potassium fertilizers, and prefers loose soils with high organic matter content. When planting, the bottom fertilizer is very effective with organic fertilizer and fast-acting fertilizer, because the organic fertilizer is slow, and the fertilizer is fast, and the advantages are complementary. The taro bottom fertilizer is basically the same as ginger, and you can refer to the ginger bottom fertilizer.
Taro needs to be topdressed in the growth period, the number of topdressing is determined according to the growth, if it is a taro planted with mulch, you can apply balanced water-soluble fertilizer. If it is not covered with mulch, it can be combined with soil topdressing with nitrogen, phosphorus and potassium fast-acting fertilizer, or it can be combined with decomposed organic fertilizer. Taro generally does not spray foliar fertilizer, because taro leaves do not get wet, spraying foliar fertilizer does not work.
Top dressing for taro, according to the growth, is generally divided into: seedling stage, middle growth stage and expansion stage.