Timing and placement of cattle manure and/or gliricidia affects cotton and sunflower nutrient accumulation and biomass productivity

Abstract

Organic fertilizers are a viable alternative to increase oilseed productivity in family agriculture systems. The study aimed to evaluate the effects of timing and placement of cattle manure and/or gliricidia (Gliricidia sepium Jacq. Walp) prunings on cotton (Gossipium hirsutum L.) and sunflower (Helianthus annuus L.) nutrient accumulation and biomass productivity. Experiments were carried out in 2010 and 2011 in Taperoá, Paraíba, Brazil. The organic fertilization treatments were: GI - gliricidia incorporated before planting; GS - gliricidia applied on surface 45 days after planting (DAP); MI + GI - manure and gliricidia incorporated before planting; MI + GS - manure incorporated before planting and gliricídia applied on the surface 45 DAP; MI - manure incorporated before planting; and T - with no organic fertilization. In 2010, treatment MI + GS increased N, P, and K accumulation in cotton (12 and 7 kg ha-1) as well as in sunflower (20 and 29 kg ha-1). In 2011, GI and GS treatments resulted in higher N, P, K accumulations in both crops. The highest cotton productivity in 2010 was obtained with MI + GS treatment (198 kg ha-1) and in 2011 with GS treatment (594 kg ha-1). For sunflower, MI + GS treatment yielded the highest productivity in 2010 (466 kg ha-1) and GI treatment in 2011 (3542 kg ha-1). GI and MI + GS treatments increased total biomass productivity for cotton and sunflower. The treatment that combined both cattle manure incorporated into the soil before planting and gliricidia applied on the surface 45 days after planting was the most viable management strategy.

Leguminous Alley Cropping Improves the Production, Nutrition, and Yield of Forage Sorghum

“…However, with the presence of mineral fertilization, the crop systems were similar. These results indicate that, in addition to providing nutrients from the plant residues to the main crop, these legumes probably recycled K from depths beyond the crop zone by sorghum roots [35,36].…”

“…In general, legume residues provide Ca and Mg for agricultural crops. However, the slow release of these nutrients is probably due to the fact that they are some of the constituents of the middle lamella of the cell wall, forming one of the most recalcitrant components of the tissues [28][29][30][31][32][33][34][35][36][37][38].…”

Exploring Zinc and Boron Chemo-Priming Effects on Low-Vigour Seed Germination and Seedling Establishment of Sunflower (Helianthus annuus L.)

“…It contains abundant oil content in the range of 40-47% along with being rich in protein content (20-27%) (Ahmad and Jabeen, 2009;Andrew et al, 2013). In addition, sunflower oil is also composed of other vital constituents such as calcium and numerous vitamins including A, D and E (Diovisalvi et al, 2018;Primo et al, 2018). Interestingly, sunflower has been cultivated around the world and hold potential to be incorporated in diversified cropping systems (rainfed and irrigated) in Türkiye.…”

Effect of indolebutyric acid on rooting and budding of cuttings of Glyicidium sepium

“…For these purposes, the species has been cultivated in the cacao region of Bahia for several years and was introduced in the 1990s in the states of Sergipe, Pernambuco, and Ceará. It is currently being cultivated throughout tropical Brazil (Primo et al, 2018). Studies in other regions of the world have found that the use of gliricidia biomass as green manure contributes to increasing the productivity of forest crops when compared to the incorporation of other legumes due to its high rate of nitrogen mineralization (Silva et al, 2013).…”