Planting geometry of cotton under rain fed condition in the dry land areas of western Tigray

Abstract

The yield f cotton (Gossypium hirsutum L.) in Tigray is very low because of the lack of improved agronomic practices. Cotton producing farmers (if in row) adopt 90 × 20 cm. However, it is too wide for rain-fed cotton, which means more empty space left in-between the rows, which affect the yield negatively. Objective of this study was to estimate the optimum inter-row and intra-row spacing of cotton under rain fed condition. The experiment was laid out in split-plot design having three replications. The different levels of inter-and intra-row spacing have affected the agronomic traits and the seed cotton yield significantly. The narrow inter row and closer intra row have a higher plant population. The 90 cm inter row have taller (~90 cm) plant than the 60 cm inter row. The wider intra row (25 cm) scored higher (11-13) opened bolls in all the inter rows. The wider plant geometry recorded a higher number of unopened bolls (6). Heavier bolls (11 g) were recorded on the narrow inter-row spacing under all levels of intra-row spacing. Lighter boll weight was in 90 cm row spacing irrespective of the intra rows. Normally, boll weight was reduced as the inter-row spacing increased. Maximum seed cotton yield was recorded on 60 × 10 cm. Lower seed cotton yield was found on 90 × 25 cm. Generally, seed cotton yield was reduced as inter-and intra-row spacing increased. Therefore, the 60 × 10 cm inter and intra row should be recommended for maximum seed cotton yield under rain fed condition.

Coping with catastrophe: Crop diversity and crop production in Tigray National Regional State in Northern Ethiopia

“…Cotton production is confined to the northwestern lowlands which are also the site of Sesame production. Yields are low due to poor agronomic practices and poor quality seed (Zenawi et al, 2020). Raw cotton is the basis of cottage weaving which adds a diversified source of income to poor households: modern commercial cotton weaving enterprises in Mekelle provide employment opportunities for urbanites.…”

Coping with catastrophe: contributing to food security through crop diversity and crop production in Tigray National Regional State in northern Ethiopia

“…Yields are low due to poor agronomic practices and poor quality seed (Zenawi Gebregergis et al 2020).…”