Viabilidade agronómica de policultivos e consórcio entre as culturas, pimentão, coentro alface e cebolinha.

Abstract

In the last years. many mixtures or combinations of plants in intercropping have been demonstrating viability agroeconomic for the production increase and maximum use of the production factors, mainly when it happens mutual cooperation. however in multiple cropping they are rare the works accomplished to levei of Brazil and the results of researches accomplished to the moment are not satisfactory to remove generic information, mainly for the continental dímensions and climates differentiated among the áreas of the country. With objective of evaluating the productivity and the profitability of the cultures of pepper, lettuce, coriander and green onion in associated cultivation the work was accomplished in CCTA/UFCG, Campus Pombas, in the period of September of 201 1 to July of 2012. In the experiment they were appraised 11, treatments. corresponding to seven associated cultivations and four monocultures', installed under experimental design of randomized blocks. with three repetítions. Were used the cultivate Magali R. Verá. Verdão and Todoano, respectívely, for pepper, lettuce, coríander and green onion. The green onion seedlings were prepared for the separation and rooting of basal offshoots, the seedlings of pepper and lettuce for the sowing in expanded polystyrene trays and the coriander sowed directly in the stonemason. In the intercropping, the spacing among lhes of the cultures was in agreement wíth the employed system, in the single cultivation the spacing among lhes went of 1.00 m to the pepper, 0.30 m for the lettuce and 0.25 m for the coriander and green onion, among plants went of 0.60 m to the pepper, 0.30 m for lettuce, 0. 05 m for coriander and 0.15 m for the green onion, in both systems. They were analyzed the commercial production of fruits of pepper obtained in three crops and the productivityl for the culture of the lettuce they were appraised the traverse diameter, the fresh and dry mass of the aerial part. For the coriander, they were appraised the height. fresh and dry mass of the aerial pari. In the green onion they were appraised number of leaves, fresh mass and mass dries of the part of the aerial of three crops. The calculation of the index of efficient use of the earth was accomplished of the tested combínations. The results demonstrated that there was not interference of the intercalary crops about the production of the pepper (main culture) in all of the associated systems. For intercropping coriander, lettuce and green onion hives his best results in productivity occurred only when they were intercropped with sweet pepper, was also recorded satisfactory outcome for plant height and number of the coriander and green onion certain associations.