Performance of roquette crop fertilized with cattle and green manure using two planting densities.

This research was conducted to study the direct fertilization combining 0 and 160 kg N ha-1 of cattle manure and green manure as branches of pigeon pea (Cajanus cajan L.) and their residual effects on two population densities of roquette (Eruca sativa Miller) crop, in Seropédica, Rio de Janeiro, Brazil. Yield, number of leaves plant-1, leaf area index, shoot fresh weight, stems dry matter, roots dry matter, leaves dry matter, total dry matter and plant height were measured. The experiment was a randomized block design set as a factorial 2 x 2 x 2, and three replications: 0 and 160 kg N ha-1 of cattle manure, 0 and 160 kg N ha-1 of branches of pigeon pea and 500,000 and 1,000,000 plants ha-1. The results indicate that the population density of 500,000 plants ha-1 showed, in general, better results in terms of yield per plant. However, 1,000,000 plants ha-1 had significantly higher yield per hectare. It was observed that there was no significant difference between the use of cattle manure and branches of pigeon pea on the yield of roquette under directly fertilization and residual effect of fertilization. The replacement of cattle manure by branches of pigeon pea associated with 1,000,000 plants ha-1 showed less loss of roquette yield under the residual effect of fertilization

Farmers' perceptions of climate change and its impact on gum Talha (Acacia seyal var. seyal) production in Bahar Alarab locality, East Darfur State, Sudan

Acacia seyal var. seyal is an essential source of income to farmers in the Bahar Alarab locality in Sudan. Farmers’ perceptions of current climate conditions and their subsequent repercussions on Gum Talha (Acacia seyal var. seyal) production remains poorly investigated and understood. To fill this gap, a survey was carried out within six villages at Bahar Alarab locality in East Darfur State, Sudan, and a total of 391 randomly selected farmers were included in the study. Moreover, rainfall and temperature data over 30 years (1988 – 2020) were analysed. The results revealed that climate change signs were perceived by farmers based on the size of gum production (27.4%), early falling of leaves (26.1%), decline in production (24.3%), and persistent insect attack (22.3%). Moreover, farmers also reported increases (65%) and decreases (19%) in temperature. In contrast, 46.5% of farmers reported that rainfall deficiency was a decreasing factor of production. Accordingly, 69% of respondents perceived an increase in temperature, whereas 49.4% reported a decrease in rainfall frequency. Additionally, the results showed that there was long-term variability in temperature over the past three decades. The results of multinomial logistic regression highlighted that household size is an important factor contributing to the increasing trend of temperature. In addition, the growth and productivity of acacia trees were found to be determinants of farmers’ perception of temperature and precipitation change over the past 30 years. The study suggests a tailored policy that could reduce climate-induced impacts on gum Talha productivity and increase farmers’ gain to avoid poverty in this locality

Growth, Nutrient Uptake Efficiency and Yield of Upland Rice as Influenced by Two Compost Types in Tropical Rainforest-Derived Savannah Transition Zone

Nach dem der erste Wettbewerb via Twitter gestartet wurde und eine unerwartet positive Resonanz gefunden hat (s. u.), beginnt der 2. Versuch nun hier im Blog. Wie bereits angekündigt hat das neue Wort einen Vokal mehr. Aus den Anfangsbuchstaben des Wortes "Magazin" gilt es einen Satz zu formen. Die Buchstabenfolge ist einzuhalten. Einsedendeschluß - via Twitter, als Blogkommentar oder als E-Mail - ist der 20. Dezember 2009. Die 3 besten Sätze (von mir ausgewählt) werden mit je 10 selbstgem..