马铃薯控旺是马铃薯高产的重要技术环节，只要选择正确的叶面肥，才能保证马铃薯有效地控制地上部分生长，使养分在马铃薯体内分配时，把向地下部分输送作为主攻目标，使得块根迅速膨大，从而达到增产 、早熟的目的。 控旺可使马铃薯增产达到30%-40%。经生产实践经验总结后，想要达到马铃薯控旺、膨大、早熟，必须要做到以下这三点。 一、要准确掌握控旺时间 控旺的时间是马铃薯地上部分刚封垄时，站着一眼能看到3-5个花蕾。不能太早也不能太晚，若是太早的话，地上部分的茎叶还未达到高产所需的光合作用制造的有机物，植物体内还没有积累足够的有机物，当地下部分需要供应养分时，不能够迅速地向地下部分输送养分，导致养分供应不足，会影响产量。若是过晚地上部分出现旺长趋势，消耗的量的光合产物，对地下部分的养分供应能力减弱，会使马铃薯大量减产。 二、正确采取控旺措施 如今控旺的技术方法有很多很多种，在众多的控旺技术当中，经过实践证明，只有一小部分控旺技术能达到快速、有效、不反弹，备受农民朋友的喜爱。市面上推广的有些控旺技术说的挺好的，但真正见效很慢，地上部分容易反弹而造成二次旺长。所以在对马铃薯控旺时一定要采取稳、准、狠的控旺措施。 如今比较受欢迎控旺产品有中药基因肽靶向富硒营养液，无毒无害，还有一些其它产品虽然能达到一定效果，但都是化学药剂，对环境有污染，通过食物链会对人体有一定伤害的，所以选用中药基因肽靶向富硒营养液进行叶面喷施。从而达到控旺、增产、提质的效果，还可以防虫治病，改善土壤，提高土壤的通透性。 三、合理施用控旺肥料 现在市面上的激素，以及叶面肥多如牛毛，有些提供的控旺原理是马铃薯控旺必须的知识与技术，但提供的叶面肥并没有控旺的功效。 还有一些产品虽然能控旺，但是作用单一，只能控旺不能达到增产提质的效果，所以经过实践证明，建议大家使中药基因肽靶向富硒营养液，既能达到控旺的效果，还能给作物提供生长阶段所需的养分（如植物蛋白、基因肽、氨基酸、微量元素等），在生长前期中期后期做好三个阶段的管理，不发生病虫害。 董旭 马铃薯是地下块茎作物, 如果一旦地上部分 生长旺盛, 养分就会被大量消耗,无法进行地下 块茎的膨大 , 因此我们常常看到一种情况, 有的 一些地块, 马铃薯茎叶长势很好, 特别高, 但是 一到收获时却发现, 几乎没有多少产量, 全都是 个头很小的小薯块, 这就是由于旺长所致！ 01导致马铃薯植株旺长原因？ 1、施肥过多, 尤其是氮肥过多。氮长叶子 磷长根, 氮肥一旦使用过量, 极易造成马铃薯茎 叶旺长。 2、雨水过大或浇水过多。土壞中的养分溶 解在水中, 如果浇水过量, 植株吸收水分过多, 同时也会吸收过多的养分, 尤其是氮肥在水中的 溶解度很高, 极易被作物吸收。除此之外, 水分 过大也同样刺激作物的茎叶加速生长。 3、种植密度大。合理密植才能更好地利用 光照, 如果栽种过密, 就会出现光照不足情況 植株为了获取更多的光照, 就会出现竞争, 个个 争先, 都长出"高个子"。 02如何合理控旺？ 说起控旺, 很多人就会想到控旺药剂, 比如 矮壮素、多效唑等, 这一类控旺剂都可以抑制马 铃薯体内赤霉素的合成, 从而实现控旺。但是使 用以上药剂却有很多弊端, 最大的弊端就是药害 问题。一旦药剂使用不当, 就会导致植株严重矮 化、茎节严重缩短、叶片扭曲不展、黃化失绿等 等问题, 不仅影响当季作物, 还会在土壤中长时 问残留, 影响下茬作物。马铃薯合理控旺一定要 注意不能单一施用药剂, 要综合措施进行控旺。 1.做好水肥管理。要做到均衡施肥, 不要一 味的使用复合肥, 尤其不要偏施氮肥, 结合马铃 薯需肥特性, 重视中微量元素肥料、有机肥、微 生物菌剂的使用; 不要大水漫灌, 要小水勤浇, 2.营养控旺为主。马铃薯控旺尽量不选抖际厅 剂进行控旺, 控旺可以选择营养进行控旺。传在线 开卢 控旺型胖嘟嘟100毫升+磷钾速补50克, 兑水15 公斤喷施, 可以抑制旺长, 缩短茎节, 促进养分 回流, 膨大地下块茎。马铃薯封垄之后, 有零星 开花时, 是控旺最佳时机。 马铃薯不控旺就没有产量, 但是不科学扯原認 影响更为严重, 因此要想取得高产, 控旺必须要 科学！ Controlling potato growth is a crucial technical step in achieving high potato yields. Choosing the right foliar fertilizer can effectively control the growth of the aboveground portion of the potato. This ensures that nutrients, when distributed within the potato body, are primarily transported to the underground portion, resulting in rapid tuber expansion and, ultimately, increased yield and early maturity. Controlling growth can increase potato yields by 30%-40%. Based on practical experience, achieving controlled growth, expansion, and early maturity requires the following three key points. 1. Accurately timing growth control The timing for controlling growth is when the aboveground portion of the potato has just been completed, and 3-5 flower buds are visible at a glance. It shouldn't be too early or too late. If it is too early, the aboveground stems and leaves haven't yet produced the organic matter required for high yields through photosynthesis, and the plant hasn't accumulated sufficient organic matter. When nutrients are needed underground, they can't be quickly transported to the underground, resulting in insufficient nutrient supply and reduced yield. If excessive growth is delayed aboveground, the amount of photosynthetic products consumed will weaken the supply of nutrients to the underground portion, significantly reducing potato yields. II. Proper Growth Control Measures There are many methods for controlling growth. Among these, only a few have proven to be fast, effective, and prevent rebound growth, making them popular with farmers. Some marketed growth control techniques sound promising, but they are slow to show results, and the aboveground portion can easily rebound, leading to secondary growth. Therefore, steady, precise, and decisive measures must be taken when controlling potato growth. Currently, a popular growth control product is a non-toxic and harmless selenium-enriched nutrient solution using a traditional Chinese medicine gene peptide. While other products can achieve some results, they are chemical agents that pollute the environment and can be harmful to humans through the food chain. Therefore, foliar spraying of a selenium-enriched nutrient solution using a traditional Chinese medicine gene peptide is recommended. This can control growth, increase yield, and improve quality. It can also prevent pests and diseases, improve soil quality, and enhance soil permeability. 3. Proper Application of Growth-Control Fertilizers There are countless hormones and foliar fertilizers on the market today. Some offer growth-control principles, essential knowledge and techniques for controlling potato growth, but the foliar fertilizers they provide lack the desired growth control effect. Some other products, while effective, are limited in their effectiveness, managing growth without increasing yield or improving quality. Therefore, based on practical experience, we recommend using a selenium-enriched nutrient solution containing targeted Chinese herbal gene peptides. This not only controls growth but also provides the nutrients necessary for crop growth (such as plant protein, gene peptides, amino acids, and trace elements). Proper management during the early, mid, and late growth stages can prevent pests and diseases. Dong Xu Potatoes are underground tuber crops. If the aboveground portion grows vigorously, nutrients are consumed, preventing the underground tubers from expanding. Consequently, we often see plots of potato fields with thriving stems and leaves, reaching exceptional heights, but when harvested, the yield is virtually zero, with only small tubers. This is due to excessive growth! 01 What causes excessive potato plant growth? 1. Excessive fertilization, especially nitrogen fertilizer. Nitrogen promotes leaf growth, while phosphorus promotes root growth. Excessive nitrogen fertilizer use can easily lead to excessive stem and leaf growth. 2. Excessive rain or overwatering. Nutrients in the soil dissolve in water. Excessive watering causes the plants to absorb too much water and nutrients, especially nitrogen fertilizer, which is highly soluble in water and easily absorbed by the crop. Excessive water also stimulates accelerated stem and leaf growth. 3. High planting density. Appropriate planting density allows for better utilization of sunlight. Over-dense planting results in insufficient sunlight. To obtain more sunlight, the plants will compete for attention, each striving to grow taller. 02 How can we effectively control excessive growth? When it comes to controlling growth, many people think of growth control agents, such as chlormequat and paclobutrazol. These agents inhibit gibberellin synthesis in potatoes, thereby controlling growth. However, the use of these agents has many drawbacks, the most significant of which is the risk of pesticide damage. Improper use of these agents can lead to severe dwarfing of the plant, severe shortening of internodes, twisted and undeveloped leaves, and yellowing and chlorosis. These problems not only affect the current crop but also persist in the soil for a long time, impacting the next crop. To effectively control growth in potatoes, it is crucial not to use a single agent alone; a comprehensive approach should be employed. 1. Effective water and fertilizer management. Achieve balanced fertilization. Avoid using compound fertilizers exclusively, especially nitrogen-heavy fertilizers. Considering the specific fertilizer requirements of potatoes, prioritize the use of medium and trace element fertilizers, organic fertilizers, and microbial agents. Avoid heavy irrigation; instead, water sparingly. 2. Prioritize growth control with nutrition. When controlling potato growth, avoid using pesticides. Instead, use nutrients. A spray solution of 100 ml of Kailu Growth Control Plus 50 g of Phosphorus and Potassium Quick Supplement (15 kg of water) can inhibit excessive growth, shorten internodes, promote nutrient recirculation, and expand underground tubers. After the potato ridges are sealed and sporadic flowering occurs, this is the best time to control growth. If potato growth is not controlled, there will be no yield, but unscientific practices can have even more serious consequences. Therefore, to achieve high yields, scientific growth control is essential!