Effect of NPK Fertilizer and Animal Manure on Some Biometric Parameters of Irish Potato Solanum tuberosum L. in Bougham, West Region Cameroon

Potatoes (Solanum tuberosum L.) which are comonly grown in the highland with Andisols require organic and inorganic fertilizers to maintain soil health and increase yield. The purpose of field experiment was to obtain information on the effect of vermicompost with and without NPK fertilizer on soil acidity, soil phosphor (P) availability and P uptake in potatoes shoot; as well as yield and quality of tuber. The experimental design was a randomized block design with eight treatments and three replication. The treatment consisted of a combination of vermicompost doses (5 and 10 t/ha) with NPK fertilizer doses (0; 0.5 t/ha and 1 t/ha). The two control treatments were 1) without fertilizer and 2) the method of fertilizing local farmers included 10 t /ha chicken manure and 1 t/ha NPK fertilizer. This experiment verified that vermicompost and NPK fertilizer increased plant height as well as soil P availability and acidity compared to those of control. Vermicompost has not yet substitute chicken manure to obtain the same tuber production although the percentage of marketable tuber was quite similar. Keywords : Andisols, NPK Fertilizer, Phosphorus, Potato, Vermicompost.

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engaruh Dosis Pupuk NPK dan Ordo Tanah terhadap Kdd, Serapan K, dan Hasil Bibit Kentang (Solanum tuberosum L.) yang Diinokulasi Fungi Mikoriza Arbuskula dan Mycorrhiza Helper Bacteria

SoilREns ◽

10.24198/soilrens.v14i2.11127 ◽

2016 ◽

Vol 14 (2) ◽

Author(s):

Windy Amorita ◽

Anne Nurbaity ◽

Diyan Herdiyantoro

Keyword(s):

Solanum Tuberosum ◽

Combination Treatment ◽

Solanum Tuberosum L ◽

Block Design ◽

Independent Effect ◽

Soil Conditions ◽

K Uptake ◽

Seed Potatoes ◽

Randomized Block Design ◽

Npk Fertilizer

The productivity of potatoes in Indonesia is relatively low and unstable caused by unsuitable enviromental and soil conditions and bad cultivation system. This research was conducted to study the effect of NPK fertilizer dosages and soil order to soluble K, K Uptake, and yield of seed potatoes (Solanum tuberosum L.). The experiment design used a factorial randomized block design with two factors and three replication. The first factor was NPK fertilizer dosages with five levels (0, 25, 50, 75, 100% recomendation dosages) and the second factor was soil orders with two levels (Andisols and Inceptisols). The results of experiment showed that the interaction effect between NPK fertilizer dosages and soil orders had significantly effect to soluble K and K Uptake. There were independent effect of NPK dosages to diameter of potatoes tuber and independent effect of soils order to yield of seed potatoes. Andisols with 25% NPK and Inceptisols with 50% NPK were the best combination treatment to increase soluble K while treatment Inceptisols with 25% NPK was the best combination treatment to increase K Uptake. Dosages of 25% NPK was the best treatment to increase diameter of potatoes tuber while Inceptisols was the best treatment to increase yield of seed potatoes.Keywords : NPK Fertilizer Dosages, Andisols, Inceptisols, Potassium, Potatoes

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Recent Trends and Future Directions on Value Addition of Irish potato (Solanum Tuberosum L.) among Smallholder Farmers

Emerging Science Journal ◽

10.28991/esj-2019-01167 ◽

2019 ◽

Vol 3 (1) ◽

pp. 41

Author(s):

Jacinta Mlaviwa ◽

Edward Missanjo

Keyword(s):

Solanum Tuberosum ◽

Smallholder Farmers ◽

Solanum Tuberosum L ◽

Group Formation ◽

Cross Sectional Study ◽

Education Level ◽

Irish Potato ◽

Value Addition ◽

Cross Sectional ◽

Face To Face

Irish potato (Solanum tuberosum L.) value addition has the potential to enhance food security, household income and nutrition. This cross-sectional study was, therefore, conducted to examine value addition of Irish potato among smallholder farmers in Ntcheu, central Malawi. Data was collected using a standard structured questionnaire administered through face-to-face interviews. The results revealed that there were significant differences (X2=103.3; p<0.001) on value addition techniques practiced by farmers. The following value addition techniques were identified: chips (65%), packaging (27.5%), crisps (25%), grading (12.5%), salad (5%), baking (5%), soup (2.5%) and grounding into flour (2.5%). It was noted that factors influencing Irish potato value addition among farmers significantly (X2=8.020; p=0.046) differed. The majority (70%) of the farmers were influenced by knowledge of value addition, followed by ready markets for products (57.5%), while a few were influenced by capital (45.5%) and availability of value addition equipment (40.0%). The study further revealed that education level and group participation significantly (P<0.05) influenced Irish potato value addition technique practices. Farmers with secondary education level or above and those in Irish potato group production are involved in diverse value addition techniques. Encouraging farmer group formation, access to loans to buy value addition equipment, linking farmers with supermarkets, and farmer’s exposure to field days and workshops are the strategies identified to promote effective Irish potato value addition among smallholder farmers.

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