Sponge gourd, also known as loofah or luffa, is a fast-growing crop that yields abundant results and has a high demand for fertilizers. So, what fertilizers make sponge gourds grow faster? Let's find out.
Fertilization Requirements of Sponge Gourds
1. Within the first 30 days of transplantation, sponge gourds exhibit a linear increase in nitrogen demand, with the highest nitrogen uptake occurring during the mid-growth stage.
2. During the flower bud differentiation stage, there is a sharp increase in phosphorus demand, which determines the growth of pollen tubes during flower bud differentiation, playing a crucial role in pollination and fertilization.
3. During the fruiting stage, there is a noticeable increase in potassium uptake, with potassium playing a role in the growth and development of fruits.
4. At the peak of fruiting, fertilizer demand accounts for half of the entire growth period, and fertilizer absorption reaches a peak.
5. In the later stages of fruiting, growth slows down, nutrient absorption decreases, and there is a significant reduction in nitrogen and potassium fertilizer requirements, so corresponding reductions in fertilization are necessary.
Fertilizers to Make Sponge Gourds Grow Faster
1. Apply Sufficient Basal Fertilizer
Before or during planting, combine soil tillage with basal fertilization to ensure continuous soil nutrition for sponge gourd growth. Basal fertilizer mainly consists of organic fertilizer or farmyard manure, supplemented with a moderate amount of chemical or inorganic fertilizer. Generally, apply 3000-5000 kilograms of well-rotted organic fertilizer per acre, along with 30-50 kilograms of compound fertilizer, spread evenly over the soil and buried during tillage.
2. Seedling Fertilizer
Seedling fertilizer, as the name suggests, is used for root growth and seedling emergence. Seedling fertilizer is generally applied starting one week after transplanting, with 3-5 kilograms of urea per acre. If applied through foliar spraying, use 1.5 kilograms of foliar fertilizer + compound fertilizer.
3. Strong Seedling Fertilizer
Strong seedling fertilizer is applied at the vine elongation stage of sponge gourds. Choose high-nitrogen compound fertilizer for fertilization, as nitrogen promotes stem and leaf growth, and compound fertilizer containing phosphorus and potassium is beneficial. Fertilization should be carried out every 7-10 days.
4. Fruit Enlargement Fertilizer
During the flowering stage of sponge gourds, supplementary fruit enlargement fertilizer is applied to promote flower bud differentiation. Balanced fertilizer or high-phosphorus, high-potassium fertilizer is recommended, with fertilization carried out every 7-10 days.
5. Fertilization during Harvest
During the harvest period, which is around 50 days after planting, fertilizer selection is similar to that for fruit enlargement and strong seedling fertilization. High-nitrogen compound fertilizer, balanced fertilizer, or high-potassium compound fertilizer is preferred, with fertilization every 7-10 days.
Above are the methods for making sponge gourds grow faster with appropriate fertilization. Since the roots of sponge gourds are shallow and their nutrient absorption capacity is weak, they should be planted in fertile soil to achieve higher yields.
Frequently Asked Questions (FAQ)
Q: Can sponge gourds grow well without fertilizers?
A: While sponge gourds can grow without fertilizers, proper fertilization greatly enhances their growth rate and yield.
Q: How often should I fertilize sponge gourds?
A: Fertilization frequency varies depending on the growth stage of sponge gourds. Generally, fertilize every 7-10 days during different growth stages.
Q: Is organic fertilizer better than chemical fertilizer for sponge gourds?
A: Both organic and chemical fertilizers have their advantages. Organic fertilizers improve soil structure and microbial activity, while chemical fertilizers provide nutrients in readily available forms.
Q: Can I use compost as a fertilizer for sponge gourds?
A: Yes, compost is an excellent source of organic matter and nutrients for sponge gourds. It helps improve soil fertility and water retention.
Q: What should I do if I notice signs of nutrient deficiency in sponge gourds?
A: If you observe symptoms of nutrient deficiency, such as yellowing leaves or stunted growth, conduct a soil test to identify the specific nutrient lacking. Then, adjust your fertilization program accordingly.
Q: Can I use foliar fertilizers on sponge gourds?
A: Yes, foliar fertilizers can be used on sponge gourds to provide nutrients directly to the leaves. However, they should be applied in conjunction with soil fertilization for best results.
Q: How can I prevent fertilizer runoff and environmental pollution?
A: To minimize fertilizer runoff and pollution, avoid over-application of fertilizers and follow recommended application rates. Additionally, consider using slow-release fertilizers or incorporating organic matter into the soil to improve nutrient retention.
Q: Is it necessary to adjust fertilization practices for different soil types?
A: Yes, soil type can affect nutrient availability and uptake by plants. Conduct soil tests to determine nutrient levels and adjust fertilization practices accordingly for optimal sponge gourd growth.
Q: Can I use homemade fertilizers for sponge gourds?
A: Homemade fertilizers can be used if they provide the necessary nutrients in appropriate proportions. However, ensure that the ingredients are well-composted and free from contaminants to avoid harming the plants.
Q: How long does it take to see results from fertilizing sponge gourds?
A: Results from fertilization may vary depending on factors such as soil condition, weather, and fertilization method. Generally, you can expect to see noticeable growth improvements within a few weeks of consistent fertilization.
