The response to sequential coconut toddy and nut production (SCTNP) scheme of four coconut varieties/hybrids at PCA-Zamboanga Research Center, San Ramon, Zamboanga City showed that the dwarf x tall hybrids, Malayan red dwarf x Baybay tall (MRD x BAYT), Malayan red dwarf x Tagnanan tall (MRD x TAGT) and Catigan green dwarf x Laguna tall (CATD x LAGT) produced significantly higher toddy (495 – 699 li/tree/yr) and nut yield (143-169 nuts/tree/yr)  compared  to tall cultivar, ‘Laguna’ LAGT (364 li and 123 nuts per tree per year).  Varietal difference in terms of the floral and vegetative characteristics of the coconut  cultivar and hybrids contributed significantly to the differences in the sap/toddy and nut yields.

The processing of coconut sap produced from  the sequential coconut toddy and nut production (SCTNP) scheme  was conducted at the Philippine Coconut Authority - Zamboanga Research Center, San Ramon, Zamboanga City from 1997 and 1999-2001 to determine their  acceptability to local community members and evaluate their economic profitability. The processing of coconut sap into food products such as fresh sap beverage, coconut syrup, sugar and vinegar involves simple procedures at the farmer’s level. These sap-based food products proved to be highly acceptable in terms of their nutritional and economic values. They are rich in total solids, sugar (sucrose), protein, carbohydrates, phosphorus and amino acids. Coconut-sap sugar contains high amounts of essential elements such as N, P, K, Mg, Cl and S and micronutrients  (B, Zn, Fe, Cu)  compared to brown cane sugar  and refined white sugar(almost without micronutrient).  The production of sap beverage, syrup and vinegar showed higher farmer’s net income (PhP14,800 - 9,100/month) and return on investment-ROI  (465%-380%) compared to sugar making  (PhP 5,900/month,  278% ROI).   On-farm production and processing of coconut sap-based food products have  both social and economic advantages. This technology offers bigger opportunity for farmers to increase their income and generate employment especially to family members. Likewise, this  product diversification scheme can promote multi-uses and competitiveness of the coconut palm.

A study to assess the effects of fertilizer application on either coconut or coffee or both, in an intercropping system was conducted from 1985 to 1991. at the Davao Research Center, Mindanao, Philippines. The coconuts were planted at 8 m x 8 m square system.   Fertilizer application on coconut intercropped with either fertilized or unfertilized coffee increased copra yield significantly. A very slight increase in copra per nut was noted on un‑fertilized coconut even with fertilized coffee inter­crop indicating coconut did not benefit from the fertilizers applied on coffee. Bean yield of fertilized coffee was increased significantly by 202 percent under fertilized or unfertilized coconuts. But yield of unfertilized coffee did not increase even under fertilized coconut. There is a need to apply fertilizers separately to both crops.   Economic analysis revealed that fertilizer application to both coconut and coffee gave the highest net return, followed by fertilizer application on coffee alone.