Alley intercipiente with annual crops is a usual practice in coffee cultivation, especially in periods of renewal of the crop by pruning. Its purpose is to make better use of the area, decrease costs of implantation and renovation, mainly in coffee plantations with open lines, through the production of subsistence food with generation of additional and immediate income of the producer. Therefore, the objective of the present study was to evaluate the productivity and plant health of pruned coffee crop in consortium with annual crops in different spacings. The experiment was carried out at the Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais – Campus Muzambinho, in the 2016/17 and 2017/2018 crop years, in a coffee plant of Catuaí Vermelho cultivar 144, 12 years old, pruned in 2014. Three intercrops (corn, chia and beans) in two spacings (30.0cm and 60.0cm) plus two additional treatments without intercropping (slashing or applying herbicide) were implanted in the soil. In the crop year 2016/17, a delay in the fruit maturation was observed in the treatment with intercropping spaced at 30.0cm, when compared to the same crops at 60.0cm spacing. The maturation of the fruits in the 2017/18 crop year was delayed in the treatments of consorts spaced at 60.0cm, when compared with the additional treatment. There was an expressive increase of cercosporiosis with cropping culture spacing 60.0cm. It was also observed that the average yield of coffee in the 2016/17 and 2017/18 crop years was affected by the interplant cultures implanted in the spacing of 30.0cm. In general, regardless of the spacings, intercropping negatively influenced the productivity of coffee in both 2016/17 and 2017/2018 crop years.
<p> Coffee cultivation has great socio-economic relevance in Brazil for the employment and income generation and there is currently a constant search for sustainable management techniques. Among them, we can mention the use of cover crops and soil bioactivators. However, studies relating the use of these two techniques are still incipient. Based on this, the objective of this research was to evaluate the effect of the Penergetic® bioactivator associated with different cover crops on chemical properties of soil and coffee productivity. The experiment was carried out in a coffee field with Catuaí Vermelho cultivar IAC 144, in a randomized block design in a factorial scheme 4 (soil cover) x 2 (use or not of the Penergetic® bioactivator), consisting of control (without plant cover); oats (<em>Avena strigosa</em>) + forage turnip (<em>Raphanus sativus</em> L); oats (<em>Avena strigosa</em>) + forage turnip (<em>Raphanus sativus</em> L) + lupine (<em>Lupine albus</em>) + rye (<em>Secale cereale</em>) + vetch (<em>Vicia sativa</em>); Brachiaria brizantha (<em>Urochloa brizantha</em>), associated or not with the use of the Penergetic® bioactivator. The experiment was conducted for 6 months and after that period, the chemical properties of soil, the nutrient contents of the coffee plants, the development of the branches and the coffee productivity were analyzed. Data were analyzed by the Scott Knott test at 5% probability. It was verified the interaction between cover crops and the use of the Penergetic® bioactivator, positively influencing soil chemical characteristics, coffee nutrition and productivity.</p>
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