InfoSAWIT, JAKARTA – In the conventional method, if there is a will to increase the productivity, there should be additional fertilizer to give. In this method, the additional fertilizer is the supporting factor so that the production would not decrease. The first step to do is by giving enough fertilizer based on the suggestion and doze. The second is by arranging the recommendation of fertilization which is better to the needs within some trials of fertilization. The additional fertilization is not necessary anymore if the second way has run.
To get the sex ratio remain stable, the land should be moist and avoid deficiency of N.P,K, from Mg. This has something to do with the fertilzation and other nursery. The closest doze of fertilizer is known from the calculation based on the field trial so that the result could be as what it is hoped. Besides the numbers of bunch which is known as sex ratio (the comparison between female and male) that could improve the fruitset that would be the spot to the fruit to come. Actually the effort to increase the efforts would be known after the third year while the increasing phase should start since the first six months of application.
Some additional fertilizations are needed if the production is increasing. So it would not decrease again. The first step is by giving the recommended fertilizer which is the same with the doze. The second is by arranging the recommended fertilzation which might be close to the needs competed by some trials. The additional fertilzation is not needed if the second has run.
But everything has something to do with the fertilizer and other nursery. The closest doze of fertilizer is known from the field test. The calculation based on the leaf analysis should keep use the field trial resut so that there would be result as what it is hoped. Besides the numbers of bunch or famously known as sex ration (the comparison between male and female flowers) could improve the arrangement of fruitset where the fruit would grow. To increase the palm oil productivity, actually would be clear after three years while the increasing would be from 6 month after application.
(Memet Hakim - Emha Training Center & Advisory Services/Dosen Tamu Fakultas Pertanian Unpad)
For more, please read InfoSAWIT, December 2018