In the durian cultivation will have a sprawling problem occurs, regardless of the growth stage, flowering stage, and fruiting stage even in the post-harvest, there will be a series of problems. And some of the problems may be not seen before. The most common issues during the flowering and fruiting stage included: flowering and fruiting rate below expectation, the fruit shape is not ideal and poor flesh quality（Tip burn, uneven fruit ripening, flesh with uneven spots. These problems not only happen in the farm with inadequate nutrient element supply, in fact, can also occur in the farm with adequate nutrient element supply also. Climate change plays an important role in all these issues. Therefore, nutrient supply adjustment is not only based on the physiological stage of the crop but also base on climate change.

Climate change affects the durian flowering stage and fruiting stage directly and indirectly. Climate change is not just affecting the flowering and fruiting season, but also affecting the quality and yield of the fruits, and the physiological performance of durian during the flowering and fruiting stage. Corresponding to the recent atmospheric problems such as tip burn and uneven fruit ripening, the common factors that induce these happened are nutrient absorption and transportation problems. There are several situations that will lead to nutrient absorption and transport problems such as the weather being excessively hot and causing the fertilizer to be difficult to dissolve and absorb, raining season during flowering and fruiting stage leading to new leaf initiation causing dispersion of nutrients distribution and application. As this happens, most of the nutrients will be affected, including calcium and boron.

Calcium and boron are the 2 elements that closely interact during flowering and fruiting. Calcium helps to strengthen the cell wall, increased pollen viability and increase the fruit setting rate. It can also reduce premature fruit drop incidence. Boron is essential for flower and fruit development. Adequate boron content can reduce the crooked fruit, promoting the fruit setting rate and reducing fruit drop. Calcium is an immobile nutrient. In nature, calcium ions and various anions are easy to combine to produce a water-insoluble precipitate, which is fixed and does not be absorbed by the crop. When Calcium is absorbed by the roots, when it transports through the transpiration process, it is easy to bind with an organic acid, resulting in the formation of compound organic acid calcium which is difficult to transport or unable to reach the target site. For boron, it is difficult to move after being absorbed so it may fail to reach the target site. So appropriate supply of calcium and boron element by foliar can reduce the above problems that occur which affects the fruit quality. Utilizing suitable bio-stimulant together with calcium and boron foliar can improve the absorption of stated nutrient elements. 

Bio-stimulant: seaweed extract, is not only able to enhance the plant resistance against diseases and harsh climates, and also helpful during the plant's physiological period to perform effective auxiliary, more effectively to help the plants nutrient absorption and transportation. Utilizing premium seaweed extract and nutrients combination in foliar is able to give an effective supply to durian and also maximize the absorption but minimize new leaf initiation during the flowering and fruiting stage to ensure the flower and fruit quality.

Wuxal Ascofol CaB features:

1. Enriched with natural seaweed extracts, calcium and boron elements to improve the resistance to climate and diseases, and the flower and fruit quality
2. Not containing nitrogen element
3. Able to strengthen the durian peduncle and reduce new leave initiation during the flowering and fruiting stage that lead to nutritional dispersion
4. To solve calcium and boron deficiency